Gas Tankless Water Heater Ratings part 8, Reviews of the Rinnai, Ruud, Sole, Spherehot, State, Summercool, Takagi, Termet, Termodinamik, and Thermo Solutions brands

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BRAND-----------BASIC-HIGH EFFICIENCY

RINNAI---------------2*------------------4*

The VALUE SERIES units are basic tankless units that are for small to medium sized homes and are available for either indoor or outdoor installation. The LUXURY SERIES offers high output versions suitable for large homes. The ULTRA SERIES features high efficiency units with enhanced scale detection capability and a very good warranty. rinnai.us

RUUD-----------------NA------------------4*

This is another brand that is made by RHEEM MANUFACTURING. The PROFESSIONAL PRESTIGE SERIES offers two sizes of high efficiency units and they are available for indoor or outdoor mounting. ruud.com

SOLE---------------<1*------------------NA 

These water heaters are made and sold in Peru by MT INDUSTRIAL. They offer five sizes of units in both unvented and vented styles. The units can be purchased directly through their website but the guarantee is not very good when compared to other brands. sole.com.pe

SPHEREHOT-------<1*------------------NA 

This brand is made in India. The REVERE are basic units with durable copper heat exchangers but their guarantee is not very good when compared to other brands. spherehot.com

STATE----------------3*------------------4* 

This brand is a part of AO SMITH. They offer a wide selection of units including both indoor and outdoor models that are backed by a good guarantee. statewaterheaters.com

SUMMERCOOL-----<1*------------------NA 

These water heaters are made and sold in India. They are basic units with mechanical controls. Their website is not much help and does not have a stated warranty policy. summercoolindia.com

TAKAGI---------------4*------------------5*

These units are available in a wide selection of models. They use copper for primary heat exchangers and stainless steel for durability on the the secondary heat exchangers and are backed by a good warranty. takagi.com

TERMET-------------<1*------------------1*

The TERMAQ models are made in Poland and are sold in Europe. They offer both piezo and electronic ignition models and feature durable copper heat exchangers. The AQUA COMFORT TURBO water heaters are high efficiency units with a durable copper heat exchanger. Their website does not have a stated warranty policy. termet.com.pl

TERMODINAMIK---<1*------------------NA

This brand is made in turkey and features units with electronic modulating controls. Their website is not much help and does not have a stated warranty policy. termodinamik.com.tr

THERMO SOLUTIONS--NA--------------<1*

This brand is made and sold in Costa Rica. They are basic water heaters with electromechanical controls. Their website does not have a stated guarantee for the units. thermosolutionsgroup.com

If you need help in selecting the proper gas tankless water heater, you can contact me (Hvacrepairguy) on Facebook Messenger by clicking on the button. I will find the proper size for you, select the best that is available on Amazon.com and send you a link to purchase it.

Other Gas Tankless Water Heater Brand Ratings

You can continue to browse our alphabetical list of manufacturers but, if you are searching for a specific brand, you can enter its name in the search box at the top of the page.

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