Solar Water Heater Ratings, A Repairman Reviews The Brands...

With our solar water heater ratings, you can cut through all of the sales hype and find value. We have researched the brands from all over the world and compared them using our heating system service experience. It truly is like taking a repairman with you while you shop!

We have separated our ratings into two main categories which are active and passive systems. Active systems use a pump to circulate the water or heat transfer fluid through the solar collectors while passive systems use natural circulation.

We have included our comments on the advantages/disadvantages of the products as well as the manufacturers' web address.

BRAND------------WEB ADDRESS--------CLOSED LOOP-----OPEN LOOP

AES--------------aessolar.co.uk---------<1*-------------NA These systems are made and sold in the U.K. The standard kits do not include the storage tank but they do offer to include them. The warranty on the kits is not very good when compared to other brands.

ALPHA---- alpha-innovation.co.uk -----<1*-------------NA This brand is from ALPHA HEATING INNOVATION which is a part of IMMERGAS GROUP and is available in the U.K. The SOLARSMART kits use a drainback tank for freeze protection. They have a patented "solar valve" which sends water directly from the solar heater to the tap, if the temperature is >60C. If the temperature is <60C, the water is sent from the solar heater to the combi boiler for further heating. The collectors can be mounted in the roof or on the roof as well as used on flat a flat roof. The brand has a good guarantee on the collectors and the tank but not the other parts.

A.O. Smith-------hotwater.com-----------<1*--------------NA The Cirrex solar electric system is a closed loop active system from one of the leading water heater manufacturers. The systems are available in sixteen different configurations to suit just about any need. The warranty is very complicated and the guarantee on parts (except for the storage tank and panels) is not as good as many other brands.

ARISTON----------ariston.com------------<1*--------------NA This brand is a part of the MTS GROUP and is available in Europe. They offer kits in four different packages to suit your needs but the kits do not include the storage tank. The system uses differential temperature control to maximize the solar energy savings. The warranty on the collectors is not very good when compared to other brands.

AS SOLAR------- as-solar.com ---------<1*--------------NA These systems are made in Germany and sold throughout Europe. The COMPACT system is available in four sizes and is for domestic hot water production. The PREMIUM package is available in five sizes and is designed to produce domestic hot water and to supplement a central heating system. The COMPLETE system is designed to provide all of a home's heating needs. The manufacturer's website is not much help and does not have a stated warranty policy.

ASTERSA----------astersa.net------------<1*--------------NA These systems are made in Spain and sold in Europe. They offer systems in three sizes (150, 200, 300 liters) with an optional backup immersion element and thermostat.

ATMOS------------atmos.uk.com------------1*--------------NA This brand is a part of SKAINO ATMOS LTD and is available in the U.K. The MONOSOLAR system uses a drainback tank for freeze protection. The system has a 100 liter storage tank that is rather small but the systems and the warranty is not as good as some brands.

AWB--------------awb.nl-----------------<1*--------------NA This brand is a part of the VAILLANT GROUP and is available in the NETHERLANDS. The HELIO SET 150 is a 150 liter system with a stainless steel storage tank and digital pump control. The solar collectors can be integrated into the roof as well as mounted on the roof. The guarantee on the collectors is not very good when compared to other brands.

BATEC------------batec.dk---------------<1*--------------NA This brand is made in Denmark and is available throughout Europe. They only offer systems with either 200 or 280 liter storage tanks which may not be the right size for all applications. The website is not much help and does not have a stated warranty policy.

BAXI-------------baxigroup.com----------<1*--------------NA The SOLARFLO systems do not include the storage cylinder. They use adjustable differential temperature regulation to maximize your solar savings. The collector kits are available for integrating into the roof, mounting on a sloped roof, mounting on a flat roof, and in evacuated tubes instead of flat plate collectors. The systems are backed by a good warranty but the guarantee on the evacuated tube collectors is only five years.

BEASLEY----------rinnai.com.au-----------NA--------------4* This brand is from RINNAI AUSTRALIA PTY LTD and is available in Australia, New Zealand, and Singapore. The systems are available with electric or gas fired backup heating (boost). They are backed by a very good guarantee.

BOSCH---------- bosch-climate.us -----<1*--------------NA This brand offers kits but they do not include the solar storage tank or the mounting hardware. Their website is not much help and does not have a stated warranty policy for the parts of the kit.

BTF--------------btfsolar.com-----------<1*--------------NA The SOLAR PATRIOT system uses a drainback tank for freeze protection. The system also use evacuated tube collectors which are more efficient at capturing the solar heat but are normally more expensive. You can order their systems online direct from the manufacturer.

BUDERUS----------buderus.de-------------<1*--------------NA This brand is a part of BOSCH THERMOTECHNOLOGY CORP. The LOGASOL TOPAZ PACKAGE uses flat plate collectors which are not as efficient as evacuated tubes. The manufacturer's website is not much help and does not have a stated warranty policy.

BULEX------------renovabulex.be---------<1*--------------NA This brand is a part of the VAILLANT GROUP and is available in Belgium. They standard warranty is not very good when compared to other brands.

BUTLER-------butlersunsolutions.com------1*--------------NA This brand is a great option for "add on" solutions. The system pump can be powered by solar as well. The units feature the "solar wand" which is a screw in heat exchanger that allows for the easy connection to an existing water heater. The umbilical system allows for quick connection of system parts. You can purchase the units online from the manufacturer but the warranty is not as good as some of the other brands.

CALEFFI------caleffi.com-----------------<1*-------------NA This brand offers five different systems to match the needs of your home. They are available worldwide but the warranty is not as good as some of the other brands.

CHAUFFAGE FRANCAIS chauffage-francais.fr <1*-------------NA This brand is a part of the RIELLO GROUP and is available in France. The SOLENNE E systems are available in 300, 400, or 500 liter sizes. The solar collectors can be integrated into the roof or mounted on the roof. The warranty is not very good when compared to other brands.

CHOFU--------chofu.co.jp-----------------<1*-------------NA These units are made and sold in Japan by CHOFI SEISAKUSHA CO. LTD. The HSG-200 model incorporates a gas fired backup and all of the controls/pump are in a nice packaged unit. The manufacturer's website is not much help and does not have a stated warranty policy.

CHROMAGEN---------chromagen.com----------<1*-------------1* This brand is available internationally and offers a wide selection of systems. They use standard technology and the warranty on the closed loop systems is not as good as many brands. The warranty on the open loop systems is better when compared to other brands.

CLEARLY SOLAR-----clearlysolar.co.uk-----<1*-------------NA This brand is from GLOW WORM which is a part of the VAILLANT GROUP and is available in the U.K. The system uses differential temperature control to maximize your solar savings. They have a three speed circulator pump and 3kw backup immersion heater.

DAALDEROP---------daalderop.nl------------1*-------------NA This brand is available in the Netherlands and Belgium. The MONOSOLAR system uses a drainback tank for freeze protection. The system has a 100 liter storage tank and uses a multi speed pump. The guarantee on the systems is not as good as some of the other options.

DAIKIN---------daikinheating.co.uk--------<1*------------NA This brand offers basic systems with flat plate collectors. Their website is not much help and does not have a stated warranty policy.

DE DIETRICH-- dedietrich-heating.com-----<1*------------NA The INISOL systems are made in france by GROUP BDR THERMEA. They are available in four sizes and as either in-roof or on-roof packages. Their website is not much help and does not have a stated warranty policy.

DIMAS----------- dimas-solar.gr --------<1*------------NA This brand offers systems that use the most basic technology. Their website is not much help and does not have a stated warranty policy.

DIMPLEX-----------dimplex.co.uk------------2*------------NA This brand is a part of the GLEN DIMPLEX GROUP based in Ireland. The systems feature a variable speed pump for energy savings and a nice control panel. The pump station is compact and the storage tank has a backup electric immersion element. They offer both integrated and on-roof mounting options and the systems are backed by a good guarantee.

DUX---------------dux.com.au--------------<1*-----------<1* This brand is a part of GWA INTERNATIONAL LTD and is available in Australia. The SUNPRO systems are available in either open or closed loop models in 250, 315, or 400 liter sizes. The SOLAR ONE systems are open loop systems witha 250 liter tank and an electric boost heater. The SUNPRO systems are available with either electric or gas boost. The warranty on the systems is not very good.

EAGLE SUN-----------aetsolar.com-----------<1*-------------<1* This brand is from ALTERNATE ENERGY TECHNOLOGIES LLC. The system uses a drainback tank for freeze protection. The system also uses differential temperature control to maximize your solar savings. The warranty is not very good compared to other brands.

EDENSOL-------------halsteadboilers.co.uk--<1*--------------NA This brand is from HALSTEAD BOILERS which is a part of the GLEN DEMPLEX GROUP and is available in the U.K. They offer slate, tile, or flat roof collector mounting options. The guarantee on the systems is not very good.

EDWARDS-------------edwards.com.au----------1*--------------5* This brand is a part of the PALOMA GROUP. They offer a variety of systems with electric or gas backup (boost). In Australia, they offer no interest financing to help homeowners afford the systems. They also have an international dealer locator with links on their website.

ECA TECHNOLOGY------ecatech.it-------------<1*--------------NA This brand is made in Italy and available in Europe. The forced circulation kits are available in sizes from 150 to 500 liters.

EJAI----------------ejaisolar.com-----------1*--------------NA These units are made in China and sold in Southeast Asia. They use evacuated tube collectors for efficiency and a stainless steel tank for durability. The warranty on the units is not as good as some of the other brands. They also have a "Balcony Series" system that is designed for the collectors to be hung from the railing on a balcony instead of on the roof.

ELCO----------------elco.net---------------<1*--------------NA This brand is available in Europe. They offer eight different packs (kits) to meet the specific needs of the home. They offer both flat plate collectors and evacuated tube collectors. The manufacturers' website is not much help and does not have a stated guarantee.

ENERWORKS-----------enerworks.com----------<1*--------------NA This brand is made in Canada and is sold/installed by dealers only. Their website is not much help and the warranty on the systems is not as good as many brands.

e-SUN---------------esun.com.au------------<1*-------------<1* These systems are from e-SOLAR and use basic technology. The manufacturer's website is not much help and does not have a stated warranty policy.

EVOSOLAR------------evosolar.us------------<1*--------------NA This brand is from JOMAR INTERNATIONAL and features closed loop systems. The PLUS line features several different systems to match the needs of your family. The systems are available in the USA but the warranty is not very good.

EXTRAFLAME--- lanordica-extraflame.com --<1*--------------NA This brand is made in Italy and sold in Europe. They offer systems in sizes from 150 to 1000 liters but the warranty on the collectors is not very good.

EZINC---------------ezinc.com.tr-----------<1*--------------NA This brand is made in Turkey and is available worldwide. They offer systems in three sizes from 200 to 500 liters. Their website is not much help and does not have a stated warranty policy.

FAFCO---------------fafco.com--------------<1*--------------NA The 200 series systems feature drainback tanks for colder areas. The 500 series systems are pumped closed loop systems with an option to include a pv panel to power the system. This could be useful in cabins or other off-grid situations. The warranty on the panels is good but for the other parts of the system the guarantee is not very good.

FERROLI-------------ferroli.co.uk----------<1*--------------NA These systems are available in europe. The AQUASOL systems are for smaller homes (typically 3 bedroom/ 1 bath) while the AQUACYL systems are for larger homes. The AQUACYL systems use a drainback tank for freeze protection and the kit includes a system boiler for backup water heating. The guarantee on the systems is not very good.

FIREBIRD------------firebird.ie------------<1*--------------NA These systems are made in Ireland. The ENVIROSOL range offers systems with either flat plate or evacuated tube collectors. The warranty on the products is not as good as other brands.

FONTECAL------------fontecal.it------------<1*--------------NA This brand is made and sold in Italy. The FONTESOL F kits also contain a boiler for backup water heating. The systems are available in sizes from 150 to 800 liters.

GAODELE-------------gaodele.com------------<1*--------------NA These systems are made in China by ZHEJIANG GAODELE NEW ENERGY CO. LTD. The manufacturer's website is not much help and does not have a stated warranty policy.

GASOKOL-------------gasokol.at-------------<1*--------------NA These units are made in Austria and are sold throughout Europe. They feature flat plate collectors which are less efficient and the warranty is not as good as some other brands.

GERKROS-------------gerkros.ie-------------<1*--------------NA This brand is available in Ireland and the U.K. They use differential temperature control to maximize your solar savings.

GIORDANO------------giordano.fr------------<1*-------------<1* These systems are made in France and feature stainless steel storage tanks for durability. The manufacturer's website is not much help and does not have a stated warranty policy.

GRANT---------------grantuk.com-------------4*--------------NA This brand offers kits that are made and sold in the U.K. The collectors can be mounted either on or in the roof. The pump station includes an air eliminator which allows for simultaneous filling and air purging. The system uses differential control and uses a three speed pump. They have a dealer locator by postcode on their website. The units offer a good guarantee.

HaiLin--------------hailinsolar.com.cn-----<1*--------------NA This brand is made in China and is available through a limited distribution network. They offer four sizes of systems for residences that feature a nice touchscreen control. The manufacturer's website is not much help and does not have a stated warranty policy.

HAOKANG-------------hktyn.com--------------<1*--------------NA This brand is made in China. They offer standard models as well as a balcony unit where the collector is designed to be mounted on the handrail of a balcony. Their website is not much help and does not have a stated warranty policy.

HEAT TRANSFER-------htproducts.com---------<1*--------------NA This brand is available in the U.S. and features evacuated tube collectors for efficient operation. This brand also features stainless steel tanks for a long life. The PHOENIX solar water heater includes an integrated high efficiency gas fired backup heater with load matching modulation. The SUPERSTOR models feature either an integrated electric backup heater or a secong heat exchanger for a backup boiler. The manufacturers' website has a dealer locator by state on it. The warranty on parts other than the collectors and tank is not very good at only one year.

HELIODYNE-----------heliodyne.com----------<1*--------------2* This brand offers several different packages to meet the needs of various areas and sizes of homes. The systems can be easily added to existing storage water heaters.

HOVAL---------------hoval.com--------------<1*--------------NA This brand is available in Europe. The SOLKIT system is available with either a 250 or 470 litre stainless steel storage cylinder. They offer an optional backup electric immersion heater and the units feature very easy installation thanks to their "umbilical line". That is where the copper pipes and control wires are together in an easy to install bundle. The flat plate solar collectors can be mounted on flat or sloped roofs as well as mounted on a wall. The website is not much help and they do not have a stated warranty policy.

IBC--------------- ibc-heiztechnik.de ----3*--------------NA These units are made in Germany and available in Europe. They offer packages with either evacuated tube or flat plate collectors to match your budget. The manufacturer's website is not much help but the systems are backed by a very good guarantee.

IDEAL---------------idealboilers.com-------<1*--------------NA This brand is from the IDEAL STELRAD GROUP and is available in the U.K. They offer three packs to fit the size of your home (small, average, large properties). The systems use differential temperature control and a variable speed pump to maximize your energy savings. The guarantee on the systems is not very good.

JASPI---------------kaukora.fi-------------<1*--------------NA This brand is made in Finland and is available in parts of Europe. The SOLAR-300-PAK is a complete system that is offered. It features on-roof mounted flat plate collectors but does not offer other options such as in-roof or ground mounted systems. The systems have an auto air eliminator for convenience and hassle free operation as well as integrated backup immersion elements in the tank. Their website is not much help to the consumer and does not have a stated warranty policy.

KELAIBEIER----------expsolar.com-----------<1*-------------<1* This brand is made in China by CHANGZHOU KLEBER NEW ENERGY TECHNOLOGY CO. LTD. The brand offers basic units but the manufacturer's website is not much help and does not have a stated warranty policy.

KESTON--------------keston.co.uk-----------<1*--------------NA This brand is a part of the IDEAL STELRAD GROUP and is available in the U.K. The SOLAR DUET package includes a condensing boiler for backup hot water production. They are only available in one size (200 liter). They use differential temperature control to maximize your energy savings. The warranty on the collectors is not very good.

KINGSPAN------kingspansolar.co.uk-----------2*-------------NA These water heating systems are available in the UK and Ireland. They are custom designed for each residence and come as a complete package. They are available with either flat plate or Thermomax evacuated tube collectors and have advanced digital controllers. They are backed by a good guarantee.

KLOBEN--------------kloben.it---------------1*-------------NA These water heaters are made in Italy and available internationally. The "Family" model uses the more efficient evacuated tube collectors and is available in four sizes to match the needs of your family. They have a pretty good guarantee as well.

MEGASUN-------------helioakmi.com----------<1*-------------NA These systems are made in Greece. They offer basic units that use the less efficient flat plate collector technology. They have a backup electric heater with adjustable thermostat for those cloudy days. The manufacturer's website is not much help and does not have a stated warranty policy.

NAVITRON------------navitron.org.uk--------<1*-------------NA This brand is available in the U.K. They offer a BUDGETKIT that you can add on to your existing storage water heater as well as their SOLARKIT in three sizes that includes a storage tank. The systems use evacuated tube collectors for efficiency and they can be purchased online. The warranty on the systems is not very good.

NU-HEAT----------- nu-heat.co.uk --------<1*--------------NA This brand features systems that are designed to provide central heating as well as domestic hot water. They provide free quotes and each system is individually designed. The warranty is not as good as many other brands.

OVENTROP---------- oventrop-us.com -------1*--------------NA These systems are made and sold in the USA. They offer two sizes of packaged systems (80 or 115 gallon) and feature stainless steel storage tanks for durability and evacuated tube collectors for efficiency. The warranty on the systems is not as good as some of the other brands.

POTTERTON-----------potterton.co.uk--------<1*--------------NA This brand is a part of the BAXI GROUP and is available in the U.K. The kits do not include the storage cylinder. They use differential temperature control and a three speed pump to maximize your energy savings. The guarantee on the systems is not very good.

POWER PARTNERS SOLAR-powerpartnerssolar.com-<1*------------<1* This brand offers five different systems to meet the needs of your home. The website is not much help and does not have a stated warranty policy.

REDRING---------- applied-energy.com------<1*--------------NA This brand is available in the U.K. The SUNSTORE kit uses evacuated tube collectors and a differential temperature control to maximize efficiency.

REVOLUTION---------fafco.com---------------<1*--------------NA This system is available in the U.S. but only through approved dealers. The system uses a drainback tank for freeze protection. The kits are designed to be added to existing storage water heater systems. The warranty is not very good when compared to other options.

RHEEM--------------rheem.com---------------<1*--------------3* This brand is a part of PALOMA INDUSTRIES. The SolPak systems are available as either open loop or closed loop systems and in either 80 or 119 gallon capacities. They use flat plate collectors and have a multi-speed pump. The warranty on the closed loop systems is not as good as other brands but the open loop system warranty is pretty good.

RM SOLAR-----------rmsolar.com-------------<1*--------------NA This brand is made and sold in the U.K. The S CLASS SYSTEM consists of a complete kit with panels that can be either mounted on or in the roof. The ECONRANGE systems have a warranty that is not as good and receive a <1* rating.

RUUD---------------ruud.com----------------<1*--------------3* This brand is a part of PALOMA INDUSTRIES. The SolPak systems are available as either open loop or closed loop systems and in either 80 or 119 gallon capacities. They use flat plate collectors and have a multi-speed pump. The warranty on the closed loop systems is not as good as other brands but the open loop system warranty is pretty good.

SIDITE----------- sidite-solar.com -------NA-------------<1* This brand is made in China. The units have all of the basic features including a backup electric heater for those cloudy days. The manufacturer's website is not much help and does not have a stated warranty policy.

SIME---------------sime.it-----------------<1*--------------NA These systems are made and sold in Italy.

SKYLINE------------solarroofs.com----------<1*-------------<1* This brand is available in the U.S. and Canada. The kit is designed to be added to an existing storage water heater. They also offer kits with a solar powered circulator pump. They have a dealer list by state/province with links on their website.

SMART SOLAR -------energykinetics.com------<1*--------------NA This brand is from ENERGY KINETICS and offers low profile panels and a closed loop system. The warranty is not very good and the manufacturer's website is not much help.

SOLAHART-----------solahart.com------------<1*-------------<1* This brand is from the PALOMA GROUP. They have a dealer locator on their website. The guarantee on the solar collectors is not very good.

SOLAR BOILER----- thermo-dynamics.com ----3*--------------NA These systems are made in Canada and are available in two sizes to match the needs of your home. The systems include a solar powered pump and they are backed by a very good warranty. The solar storage tank is not included in the package but you can use your old storage type water heater.

SOLAR-MIO --------metaldynamics.com.au----<1*--------------NA These systems are made and sold in Australia. The brand is a part of the ALBURY CONSOLIDATED GROUP. Their website is not much help and the warranty on the units is not very good.

SOLARTWIN----------solartwin.com------------NA-------------<1* This brand is available in the U.K. and Ireland. They offer a do it yourself kit that includes everything you need to add solar water heating to your existing domestic hot water system. The kits feature a PV (solar) powered variable speed pump to circulate the water. You can purchase the kits online directly from the manufacturer. They have a very good warranty on most parts but the guarantee on the flat plate collectors is not as good as many brands.

SOLENE----------- solene-usa.com --------<1*-------------<1* This brand offers both open loop and closed loop as well as drainback systems. The systems are sold through dealers. The manufacturer's website is not much help.

SOL-R-THERM--------nythermal.com------------5*--------------NA These systems are made in Canada by NY THERMAL INC and are available in two sizes ( 80 gallon or 120 gallon). They use falt plate collectors and have all of the standard features you need in a system. They are backed by a very good warranty when registered.

SONNENKRAFT--------sonnenkraft.com---------<1*--------------NA These units are made by GENERAL SOLAR SYSTEMS which is a part of the SOLARCAP GROUP. The COMPACT system is a basic water heating system while the COMFORT systems provide hot water for the central heating system as well as the domestic hot water. They use the more efficient evacuated tube collectors. The manufacturer's website is not much help.

STATE-----------statewaterheaters.com------<1*--------------NA The PREMIER range of solar water heaters features 16 different package combinations to match the specific needs of the home. They feature CHROMAGEN brand collectors which are backed by a good warranty. The other parts of the package do not have a very good warranty.

STIEBEL ELTRON-- stiebel-eltron.de-------<1*--------------NA This brand is available worldwide. The standard sets are for dhw production and are available in three sizes (300, 400, 600 liters). The premium systems are for central heating as well as dhw production.

SunGo--------------solarscn.com------------<1*-------------<1* The SGP model units are available for either open or closed loop applications. The units feature a backup auxiliary electric heater and are backed by a good warranty.

SUNMASTER----------rinnai.com.au------------NA-------------<1* This brand is from RINNAI AUSTRALIA PTY LTD and is available in Australia. They offer five gas boosted systems and three electric boosted options. The systems are backed by a good warranty.

SUNMAXX---solarhotwater.siliconsolar.com---<1*--------------NA This brand is sold through dealers in the U.S. They are available in either 40 or 50 gallon systems only. They use the more efficient evacuated tube solar collectors andd a drainback tank for freeze protection.

SUNSTAR---------- sunstar-solar.com -----<1*-------------<1* This brand is made in China by CHANGZHOUS BLUECLEAN SOLAR ENERGY. They offer a variety of units that use efficient evacuated tube collectors. The warranty is not as good as many brands.

SUNSTORM-----------sunstorm86.com----------<1*--------------NA These units are made in China by HAINING SANXI SOLAR ENERGY INDUSTRY CO. LTD. They offer siz sizes of units from 150 to 500 liters. The systems use the more efficient evacuated tube collectors. The warranty is not as good as some other brands.

SUNTASK------------suntasksolar.com--------<1*--------------NA This brand is made in China by ZHEJIANG SHENTAI SOLAR ENERGY CO.LTD. They offer systems in four sizes from 150 to 500 liters and feature the more efficient evacuated tube collectors. They also offer a solar balcony unit which is designed to hang from the railing on a balcony. The manufacturer's website is not much help and does not have a stated warranty policy.

SUNTREK------------suntreksolar.com--------<1*-------------<1* This brand is available in the U.S. they must be installed and sold by authorized dealers.

SUNVERTER----------sunvoltenergy.net--------3*--------------NA This brand is from SUNVOLT ENERGY INC. and offers packages that are designed for ease of installation and can be purchased directly online. The ET-2500 system can be used to convert an existing hot water storage system to a solar assisted system with a minimum of expense. The ET-3080 packages contain (Rheem brand) storage tanks to allow for new installation or replacement of the home's storage water heating system. The packages are backed by a good warranty.

THERMOMAX-- kingspan-renewables.com -----<1*--------------NA This brand is a part of the KINGSPAN GROUP and is available worldwide. The systems include vacuum tube collectors so they are a good option for colder climates. They offer a variety of packages to suit the individual home with kits for sloped roof, flat roof, horozontal facade, ground, or awning installation.

TRENDSETTER--trendsetterindustries.com-----<1*--------------NA Their "Piggyback System" uses a DC pump with it's own solar panel. They have a stainless steel tank for durability. The manufacturer's website has a dealer locator by state but they have a very limited dealer network. The website is not much help and does not have a posted warranty policy.

VAILLANT-----vaillantsolarsystems.com------<1*--------------NA This brand is available in two models which are the CLASSIS SERIES and the EXCLUSIVE SERIES. Both systems use differential temperature control to maximize solar savinfgs. The EXCLUSIVE SERIES features higher efficiency collectors and energy generation. They are sold through approved contractors.

VELUX--------------veluxusa.com------------<1*--------------NA This brand is sold through dealers. The manufacturer's website is not much help but it does have a dealer locator on it. They do not have a stated warranty policy.

VIESSMANN-------- viessmann-us.com--------<1*--------------NA This brand has all of the components but does not offer systems as kits. They are sold through authorized dealers only.

BRAND------------WEB ADDRESS------LOOP SYSTEM--BATCH SYSTEM

ACE-------------aceheatpump.com---------NA-----------<1* These systems are made in China and use evacuated tube collectors for efficiency. They are available in three sizes (150, 200, and 250 liters). The manufacturer's website is not much help and does not have a stated warranty policy.

ASTERSA---------astersa.net-------------1*------------NA These systems are made in Spain and are available in Europe. They offer both standard systems for mild climates as well as drainback units for colder climates. Both types offer optional backup immersion elements with thermostats.

ATASH-----------atashsolar.com----------NA-----------<1* This brand is made and sold in India by THE STANDARD PRODUCT MFG. CO. The units use the less efficient flate plate collectors but have a stainless steel storage tank for durability. The manufacturer's website is not much help and the warranty on the units is not as good as most other brands.

ATE LIVING------ateliving.com-----------1*-----------<1* These systems are made in China. They use evacuated tube collectors for efficiency and stainless steel tanks for durability. The manufacturer's website is not much help and does not have a stated warranty policy.

BEASLEY---------rinnai.com.au-----------NA------------1* This brand is from RINNAI AUSTRALIA PTY LTD and is available in Australia, New Zealand, and Singapore. They offera wide range of colors for their tanks and three sizes (180, 330, 480 liter). They have a dealer locator by country on their website. The systems are backed by a very good guarantee.

CASCADE----------visitcascade.com-------2*------------NA This brand is made and sold in India. They are available in 100 to 500 liter sizes and feature stainless steel tanks for durability. They are backed by a very good warranty.

CHOFU------------chofu.co.jp------------NA-----------<1* These units are made and sold in Japan by CHOFU SEISAKUSHA CO. LTD. The SW1-231 models feature stainless steel tanks for durability. The manufacturer's website is not much help and does not have a stated warranty policy.

CHROMAGEN--------chromagen.com----------3*-----------<1* This brand is available internationally and offers a wide variety of system options. The thermosiphon batch systems have tanks from 80 to 300 liters in size and a backup electric element for the nights or cloudy days. The warranty on those units is not as good as many other brands. The loop systems have a better warranty when compared to other brands in that category that are on the market.

CICHEWICZ--------cichewicz.com----------1*------------NA These systems are made in Poland by CICHEWICZ-KOTLY C.O. and are available throughout Europe. They offer four packages from 75 to 200 liter. Their website is not much help and does not have a stated warranty policy.

DELI SOLAR-------delisolar.com.cn-------NA------------3* This brand is from CHINA SOLAR & CLEAN ENERGY SOLUTIONS. The systems use evacuated tube collectors for greater efficiency and are backed by a very giood warranty.

ECA TECHNOLOGY---ecatech.it-------------NA-----------<1* This brand is made in Italy and available in Europe. The systems are available in sizes from 160 to 300 liters and have an electric backup heater that operates on a thermostat.

ECOSMART---------ecosmart.com.au--------NA------------1* This brand is a part of GWA INTERNATIONAL LTD and is available in Australia. They offer a good warranty and have a dealer locator on their website. They also offer "EZIPAY" where the homeowner can put down 25% of the cost and pay the remainder over time without interest.

EJAI-------------ejaisolar.com----------NA------------4* These systems are made in China and sold in Southeast Asia. They feature the more efficienct evacuated tube collectors and offer tanks made of stainless steel for durability. The units are backed by a good warranty.

e-SUN------------esun.com.au------------1*-----------<1* These units are from e-SOLAR and feature basic technology. The manufacturer's website is not much help and does not have a stated warranty policy.

EZINC------------ezinc.com.tr-----------1*-----------<1* This brand is made in turkey and is available worldwide. They offer three sizes of loop systems. Their website is not much help and does not have a stated warranty policy.

FONTECAL---------fontecal.it------------NA-----------<1* This brand is made and sold in Italy. The FONTESOL N models are available in 120, 160, and 300 liter sizes. They are backed by a pretty good warranty.

GANGA------------gangasolar.com---------NA-----------<1* This brand is from PATEL ENGINEERING and is made and sold in India. The units use the more efficient evacuated tube collectors and have a stainless steel inner tank for durability. They are available in sizes from 100 to 300 liters. The manufacturer's warranty is not as good as many brands in the industry.

GAODELE----------gaodele.com------------NA-----------<1* These units are made in China by ZHEJIANG GAODELE NEW ENERGY CO. LTD. They feature a stainless steel inner tank for durability and evacuated tube collectors for added efficiency. The manufacturer's website is not much help and does not have a stated warranty policy.

GIORDANO---------giordano.fr------------1*------------NA These systems are made in France. The manufacturer's website is not much help and does not have a stated warranty policy.

Glas-tec -------glastecinc.com---------NA------------5* The Cornell 480 units are offered as a complete unit or as a kit. The installation is simple and the units are backed by a solid guarantee.

GOODSUN----------goodsunindia.com-------NA-----------<1* This brand is made and sold in India. They offer systems in sizes from 100 to 500 liters/day and feature stainless steel tanks for durability. The manufacturer's website is not much help and does not have a stated warranty policy.

HAIER------------haierme.com------------NA-----------<1* This brand is made in China and is available in the Middle East countries. The systems use the more efficient evacuated tube solar collectors. They have stainless steel tanks for durability and are available in sizes fromn 130 to 270 liters.

HAOKANG----------hktyn.com--------------1*-----------<1* This brand is made in China and uses the more efficient evacuated tube collectors. Their website is not much help and does not have a stated warranty policy.

HELIOTHERM-------heliotherm.gr----------NA-----------<1* These units are made in Greece by HELIOTHERM SA and are available throughout Europe. They offer systems for both flat and tile roofs and have capacities from 120 to 300 liters. The manufacturer's website is not much help and does not have a stated warranty policy.

HIMIN------------himin.us---------------NA-----------<1* These units are made in China. The HM210 is available in seven sizes from 150 to 385 liters and use evacuated tube collectors for efficiency. The manufacturer's website is not much help and does not have a stated warranty policy.

JAYSOLAR---------jaysolar.net-----------NA-----------<1* This brand is made and sold in India. They offer units with flate plate collectors as well as more efficient evacuated tube models. The manufacturer's website is not much help and does not have a stated warranty policy.

KAMAL------------kamalsolar.com---------NA-----------<1* This brand is made and sold in India. The units feature a stainless steel inner tank for durability and a backup electric heater controlled by thermostat. The manufacturer's website is not much help and does not have a stated warranty policy.

KELAIBEIER-------expsolar.com-----------NA-----------<1* These units are made in China by CHANGZHOU KLEBER NEW ENERGY CO. LTD. The units feature stainless steel inner tanks for durability and use evacuated tube collectors for efficiency. The manufacturer's website is not much help and does not have a stated warranty policy.

KLOBEN-----------kloben.it--------------NA------------2* This brand is made in Italy and is available internationally. The "Evo" models use heat pipe technology for efficient operation. The systems have a good guarantee.

KOTAK------------kotakurja.com----------NA-----------<1* This brand is made and sold in India. The SunMAxx range is available in three sizes (125, 200, 300 liter/day) and use the more efficient evacuated tube collectors. The units have a stainless steel tank for durability and offer a backup electrical heater for those cloudy days. The manufacturer's website is not much help and does not have a stated warranty policy.

LAMBORGHINI---- lamborghinicalor.it----NA-----------<1* These units are available in Europe. They feature a 135 liter capacity but do not have a backup heater. They require a magnesium anode for corrosion protection. The manufacturer's website is not much help and does not have a stated warranty policy.

LEE--------------leetechnoinc.com-------NA-----------<1* This brand is made and sold in India. They feature the more efficient evacuated tube collectors and a stainless steel tank for durability. The units have a backup electrical heater for those cloudy days and a sacrificial anode in the tank to protect your investment. The manufacturer's website is not much help and does not have a stated warranty policy.

OMEGA------------omega2000group.com-----NA-----------<1* These units feature a stainless steel tank for durability and evacuated tube collectors for efficiency. You can purchase the systems online directly from the manufacturer.

PROGRESSIVTUBE---tctsolar.com-----------5*------------NA This brand is from THERMAL CONVERSION TECHNOLOGY and is available in the U.S. The systems consist of an all copper collector/storage tank for durability. They are backed by a very good warranty.

RACOLD-----------mtsil.com--------------NA-----------<1* This brand is a part of the MTS GROUP and is made and sold in India. The SOLARE systems feature stainless steel tanks for durability and have either electric or gas backup heaters.

REDREN-----------redrenewable.com-------NA-----------<1* These units are made and sold in India. The NOVICE models use the more efficient evacuated tube collectors and a stainless steel tank for durability. The manufacturer's website is not much help and does not have a stated warranty policy.

RHEEM---------rheem.com-----------------2*------------NA This brand is a part of PALOMA INDUSTRIES and is available in the U.S. through authorized dealers. The units are available in either 47 or 80 gallon sizes and are backed by a good guarantee.

RUUD----------ruud.com------------------2*------------NA This is another brand that is a part of PALOMA INDUSTRIES. The SOLARAIDE systems are available in the U.S. through authorized dealers. They are available in 47 or 80 gallon sizes and are backed by a good guarantee.

SAKURA------ sakura-aircon.com -------1*-----------<1* This brand is made in China. The systems use evacuated tube collectors for higher efficiencies. They offer a wide range of sizes in batch systems but the loop systems are only available in 400 or 500 liter sizes. The manufacturer's website is very little help and does not have a stated warranty policy.

SIDITE--------- sidite-solar.com -----NA-----------<1* These units are made in China. They are available in sizes from 75 to 225 liters and feature the more efficient evacuated tube collectors. They also use stainless steel in the construction of the storage tank for durability. The manufacturer's website is not much help and does not have a stated warranty policy.

SIME-------------sime.it----------------1*------------NA The EASY SYSTEM is made and sold in Italy.

SOLACE-----------solacepower.com--------NA-----------<1* These units are made and sold in India. They use the more efficient evacuated tube collectors and stainless steel tanks for durability. The manufacturer's website is not much help and does not have a stated warranty policy.

SOLAHART---------solahart.com-----------4*------------NA This brand is a part of the PALOMA GROUP. They have a strong guarantee and have an international dealer locator with links on their website.

SOLARIZER--------emmveesolar.com--------NA-----------<1* These systems are manufactured and installed in India. They are available in 300, 400, or 500 liter sizes and have a backup electrical heater. The warranty on the systems is not as good as many brands.

SOLAR GEYSER--- solar-geyser.com-------NA-----------<1* This brand is manufactured and sold in Pakistan. The SG-5 uses evacuated tube collectors for efficient solar collection. The units also feature a food grade stainless steel tank.

SOLAR-MIO ----metaldynamics.com.au----<1*------------NA These systems are made and sold in Australia. The brand is a part of the ALBURY CONSOLIDATED GROUP. Their website is not much help and the warranty on the units is not very good.

SOLETROL---------soletrol.com.br--------NA-----------<1* These units are made and sold in Brazil. They have an electric backup heater for those cloudy days. The manufacturer's website is not much help and does not have a stated warranty policy.

SUNDA------------sunda.com--------------1*------------NA This brand is made in China and is available worldwide. They use evacuated tube collectors for efficiency but they do not have stainless steel tanks therefore the tanks will not last as long. The manufacturer's website is not much help and does not have a stated warranty policy.

SunGo------------solarscn.com-----------2*-----------<1* These units use evacuated tube collectors for efficiency. The units are made in China and are backed by a good warranty.

SUNFLARE---------navkarsol.com----------NA-----------<1* These units are made and sold in India by NAVKARSOL. The units use the less efficient flat plate collectors but have a durable copper storage tank. They have a backup electrical heater for those cloudy days. The manufacturer's website is not much help and does not have a stated warranty policy.

SUNMAXX-solarhotwater.siliconsolar.com--NA-----------<1* This brand is sold in the U.S. through authorized dealers. The TS SERIES units have an 80 gallon capacity.

SUN RAY----------sunray.co.in-----------NA-----------<1* These units are made and sold in India. They offer both evacuated tube and flat plate collectors. The manufacturer's website is not much help and does not have a stated warranty policy.

SUNSIPHON--------sunearthinc.com--------NA-----------<1* These units are made through a partnership of EDWARD'S ENERGY SYSTEMS and SUNEARTH. They feature a stainless steel tank for a long life and have a backup auxiliary electric heating element. The website is not much help and does not have a stated warranty policy.

SUNSTAR-------- sunstar-solar.com ----2*-----------<1* This brand is made in China by CHANGZHOUS BLUECLEAN SOLAR ENERGY. They offer a variety of units that use efficient evacuated tube collectors. The warranty is not as good as many brands.

SUNSTORM---------sunstorm86.com---------NA-----------<1* These units are made in China by HAINING SANXI SOLAR ENERGY INDUSTRY CO. LTD. They offer 10 sizes from 90 to 350 liters to match the needs of your family. They have stainless steel inner tanks for durability and evacuated tube collectors for efficiency. The warranty on the units is not as good as some other brands.

SUNTASK----------suntasksolar.com-------NA-----------<1* These units are made in China by ZHEJIANG SHENTAI SOLAR ENERGY CO. LTD. The ST series offers nine sizes of units from 98 to 300 liters to match the needs of the home. They feature evacuated tube collectors for efficiency and stainless steel tanks for durability. The manufacturer's website is not much help and does not have a stated warranty policy.

SUNTREK----------suntreksolar.com-------1*-----------<1* This brand is sold and installed through dealers in the U.S.

TATANO-----------tatano.com-------------NA-----------<1* These water heaters are available in Europe. The SOLAR SYSTEM B/A has a 160 liter capacity and a backup electric immersion heater for those cloudy days. They have a magnesium anode to minimize corrosion of the water tank. Their website is not much help and does not have a stated warranty policy.

TIAFE------------tiafesolar.com---------NA-----------<1* This brand is made in China. They feature the more efficient evacuated tube collectors and stainless steel tanks for durability. They are available in sizes from 90 to 300 liters. The manufacturer's website is not much help and does not have a stated warranty policy.

V-GUARD----------vguard.in--------------NA-----------<1* These units are made and sold in India. They feature the more efficient evacuated tube collectors and a stainless steel tank for durability. They offer an optional backup electric heater with temperature controller. The systems are available in sizes from 100 to 500 liters. The manufacturer's website is not much help and does not have a stated warranty policy.

VENUS-------venushomeappliances.com-----NA-----------<1* These units are made and sold in India. They feature vacuum tube collectors for efficiency and are available in two sizes to match the needs of the home. A backup electric element is installed for those cloudy/rainy days. The guarantee on the units is not as good as most other brands.

XSTREAM----------xstream.co.za----------NA-----------<1* This brand is made in South Africa by HOTMIX PTY. LTD. The VACUSTREAM models are open-vent units that feature a 100 liter storage tank. They have evacuated tube collectors for efficiency but the warranty on the units is not very good when compared to other brands.