Heat Pump Water Heaters
Heat pump water heaters (HPWHs) are an efficient, electrified alternative to natural gas and electric resistance water heating in commercial and multifamily buildings. By extracting heat from ambient air and transferring it to water through a refrigeration cycle, HPWHs can achieve coefficients of performance (COP) two to four times greater than traditional electric resistance heaters. This efficiency translates to lower operating costs, reduced energy use, and significant greenhouse gas (GHG) reductions.
Learn MoreDual compressor high temperature system designed for radiator and baseboard retrofits. Maintains useful capacity and efficiency at very low outdoor temperatures while delivering exceptionally high supply water temperatures.
- Tested COP 1.9–2.3 (at 47°F / 105°F)
- 14.1 kW heating capacity
- R410A and R134a
- -22 F (-30 C)
- 167 F (75 C)
Natural refrigerant inverter system designed for high temperature hydronic heating. Delivers strong efficiency at elevated supply temperatures, reliable cold climate operation, and uses ultra low GWP R290 refrigerant, making it well suited for radiator retrofits and future focused installations.
- Tested COP 3.4–3.7 (at 47°F / 105°F)
- 5.9–14.8 kW heating capacity
- R290
- -13 F (-25 C)
- 158 F (70 C)
High efficiency variable speed system optimized for radiant floors, fan coils, and mixed hydronic systems. Emphasizes very high COP at moderate conditions, low electrical draw, and strong integration with solar and battery systems.
- Tested COP 2.7–3.4 (at 47°F / 105°F)
- 16.7 kW heating capacity
- R32
- -17 F (-27 C)
- 140 F (60 C)
Cold climate inverter monobloc with wide capacity modulation and strong published low temperature performance. Balances efficiency, output range, and packaged controls with North American support.
- Tested COP 3.6–4.0 (at 47°F / 105°F)
- 4.6–11.6 kW heating capacity
- R32
- -22 F (-30 C)
- 140 F (60 C)
Premium German engineered system emphasizing quiet operation, reliability, and integrated controls. Available with factory matched tanks and accessories for turnkey residential and light commercial installations.
- Tested COP 2.6–3.4 (at 47°F / 105°F)
- 14.8 kW heating capacity
- R454B
- -4 F (-20 C)
- 149 F (65 C)
Compact inverter driven platform optimized for smaller homes and low temperature distribution systems. Strong controls ecosystem, quiet operation, and reliable European design, prioritizing integration over extreme cold capacity.
- Tested COP 3.7–4.1 (at 47°F / 105°F)
- 6.0 kW heating capacity
- R32
- -13 F (-25 C)
- 149 F (65 C)