We've tested and reviewed products since 1936. Read CR's review of the American Standard Hybrid Heat Pump water heater to ...

Many states are offering rebates for heat-pump hot water systems The warm refrigerant is then pumped back to the outdoor unit where the heat is blown into the outdoor air. The outdoor unit chills the ...

The Italian manufacturer said its new heat pumps use R454B as a refrigerant and have coefficient of performance of up to 3.35 ...