Residential
Six services in one unit.
The WWA is a Basic with an air handler on top. It heats and cools through water and through air at the same time, and makes hot water and pool or snow melting. It was designed for the US market.
Six services in one unit.
Water heating
Radiant floors or fan coils.
Water cooling
Chilled water to the building.
Air heating
Warm air through the ducts, from the air handler on top.
Air cooling
Cool air through the same ducts.
Hot water
On demand up to 149 °F.
Pool or snow melting
One more circuit, same control.
All in one, ready to connect.
Other brands can look cheaper at the start. Then add the circulating pumps, the expansion vessels, the hot water valve and tank, the pool and the backup, plus the labor to fit and wire each one. The installed total is what counts, and an all-in-one unit saves labor in every job.
- Air handler with a water-to-air coilOn top of the unit, ready to connect to the ducts.
- Source and load pumpsVariable-speed circulating pumps for the ground loop and for the building.
- Expansion vesselsOn both sides, already connected.
- Two water groupsTwo direct circuits and one mixing circuit. The air handler works as a mixing group.
- Two internal three-way valvesSwitch the output between water and air.
- Controls and Wi-FiShare the power between water and air.
Key data.
- Capacity
- 15 to 75 MBH, in the 045 and 075 sizes
- Modulation
- Variable speed
- Power
- Single phase 208 to 240 V
- Size
- 61.5 x 30.8 x 30.8 in
- Refrigerant
- R454B, 47.6 oz
- Hot water valve
- Installed outside the unit and controlled by it
You choose the share of power for air and for water.
Ideal for homes that already have ducts, or want radiant floors and air in the same house.
See the residential pageCompare with the Basic
Draft Data comes from the 2026 product sheets and is confirmed with engineering before it is published.
Planning a project?
Send the plans or the loads. Ecoforest’s technical office reviews the design at no cost.