Products
The whole WaterFurnace lineup, numbers first
Every unit below is factory-tested before it ships and installed by our own crews. EER is cooling efficiency, COP is heating. Higher is better; a gas furnace is stuck below 1.0 COP.
Heat pumps & hydronics
Ten units, one honest catalog
Not sure which fits your house? That is what the free site visit decides. The catalog is here so you can check our math.
The flagship
7 Series 700A11
The most efficient heating and cooling unit you can put in a house.
- 47.0
- EER cooling
- 5.2
- COP heating
Flagship split
7 Series 700R11
All the 7 Series tech, split into two cabinets for tight utility rooms.
- 40.8
- EER cooling
- 5.4
- COP heating
Best seller
5 Series 500A11
The unit we install most. The sweet spot of price and performance.
- 30.0
- EER cooling
- 5.0
- COP heating
Forced air + radiant
5 Series 3D Compact
Forced-air comfort and hydronic radiant floors from one compact unit.
- 27.8
- EER cooling
- 4.7
- COP heating
Outdoor unit
5 Series 500RO11
Geothermal for homes with zero indoor utility space. Lives outside.
- 27.8
- EER cooling
- 4.6
- COP heating
Indoor split
5 Series 500R11
Splits into the attic or crawl space and plays well with your furnace.
- 27.8
- EER cooling
- 4.6
- COP heating
Air handler
5 Series SAH Air Handler
The air-moving half of a 5 Series split, in three cabinet sizes.
- 23.5
- EER cooling
- 4.4
- COP heating
The value pick
3 Series 300A11
Heating, cooling, and partial hot water at the friendliest price.
- 22.4
- EER cooling
- 4.3
- COP heating
Hydronic, 2-15 tons
5 Series 500W11 Hydronic
Heats water instead of air: radiant floors, pools, even snow melt.
- 18.1
- EER cooling
- 3.3
- COP heating
Boiler replacement
5 Series 504W11 OptiHeat
Makes 145°F water. Retires old boilers without replacing the radiators.
- 16.1
- EER cooling
- 3.3
- COP heating
Which unit fits your house?
Sizing is the whole game. A designer runs the load math on a free visit and prices the right unit, not the biggest one.
Contact
Talk to a person, not a phone tree
Question about your system, a strange noise, or just want a second opinion on a proposal you got elsewhere? Write or call, a geothermal designer answers both.
