Residential and apartments
The plant room, in a closet.
The Compact is a Basic with a 43 gal stainless steel hot water tank inside. It takes about 10 square feet and stands 6 feet tall, so a home or an apartment needs no separate tank.
What it does in one unit.
Heating
Water up to 140 °F to floors, fan coils or radiators.
Cooling
Passive or active, depending on the model.
Hot water
43 gal in stainless steel 316L, with electric backup.
Pool or snow melting
Available on the same unit.
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.
- 43 gal hot water tankStainless steel 316L, built in.
- Source and load pumpsVariable-speed circulating pumps for the ground loop and for the building.
- Expansion vesselsOn both sides, already connected.
- Hot water valveA three-way valve that switches between heating and hot water.
- Backup heaterA 6 kW electric element. It is the last resort, for extreme cold or for safety.
- HTRHot water up to 167 °F when it is needed.
- Controls and Wi-FiThe unit is the controller, with the app and the portal.
Key data.
- Capacity
- 10 to 45 MBH and 15 to 75 MBH
- Modulation
- 15 to 100%
- Power
- Single phase 208 to 240 V
- Size
- 76.5 x 24.0 x 28.5 in
- Refrigerant
- R454B
- Models
- M1 to M4, as the Basic
In apartment buildings, each resident controls their own hot water.
Four water pipes to the apartment and no ducts.
See multifamilyPair it with the AU Neo
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.