Heat pumps provide an energy efficient way of converting heat from a low temperature to a higher one.
Natural refrigerant alternatives exist, including propane and carbon dioxide for commercial heat pumps and ammonia for large scale heat pumps, including those used in district heating.
Heating capacity (kW): 4.5 at 7°C, with 65°C (150F) heated water
Awards/merits: Energy Star, Top 10 Green Building Product
Training availability: Virtual and in person available
Unit price: List price around USD 4,500
Notes: Depending on the size of the tank, it can be used for multi-family buildings