Heat pump water heater ratings part 12 continues our reviews with a look at the State, Stiebel Eltron, Sunsystem, Termet, Termogamma, Thermia, Thermor, and Tongyi brands.
The PREMIER units are available in 50, 66, or 80 gallon sizes. They feature a large LCD control interface and four operating modes that are selectable by pushbutton. The brand is a part of A.O. SMITH and the units are backed by a good warranty. statewaterheaters.com
The ACCELERA 300 features an 80 gallon storage capacity and a unique wrap-around aluminum condenser which isolates the refrigerant piping from the potable water. The unit will provide fifty gallons of potable water before the backup electric element kicks in to handle the larger needs. The unit has a sacrificial anode system which will require periodic replacement but the water heater is backed by a very good warranty. stiebel-eltron-usa.com
These water heaters are made in Bulgaria by NES LTD. and sold throughout Europe. They feature electronic controls but use basic tank technology. Their website is not much help and does not have a stated guarantee for the units. sunsystem.bg
These units are made and sold in Poland. They have durable stainless steel tanks but for some reason still also have sacrificial anodes. They have a built-in stainless steel heat exchanger to allow them to be connected to various backup heating systems. They are available in three sizes but their website does not have a stated warranty policy. termet.com.pl
This brand is a part of the ARISTON THERMO GROUP. The MULTIAQUA-A offers tanks in 200 or 300 liter sizes and the units can be ducted to control the cooling effect. Their website is not much help and does not have a stated warranty policy. termogamma.ch
This brand is a part of DANFOSS GROUP and is sold throughout Europe. The ATRIA OPTIMUM has a variable speed circulator pump but their website is not much help and does not have a stated warranty policy. thermia.com
This brand is made in France as part of ATLANTIC GROUP and is available throughout Europe. The DYNAPAC 2 models are basic integrated units while the AEROMAX PREMIUM units offer optional built-in coils for solar or boiler connection. They are available in 200 and 270 liter sizes but use basic tank technology and the warranty is not very good. thermor-heating.com
These water heaters are basic units that are available in three sizes. Their website is not much help and does not have a stated guarantee on the units. tongyiheatpump.com
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.