System Efficiency – COP

Gas furnace - 85 to 95%
Oil Furnace - 60 to 70%
Electric Furnace - 100%
Heat Pumps - 250 to 350%

The higher the number, the more efficient the system.

Typical air-to-air heat pumps have COP of 3 to 1 or greater.

System Efficiency – COP

Gas furnace - 85 to 95%
Oil Furnace - 60 to 70%
Electric Furnace - 100%
Heat Pumps - 250 to 350%

The higher the number, the more efficient the system.

Typical air-to-air heat pumps have COP of 3 to 1 or greater.