How much Electricity does an Air Source Heat Pump Consume for Heating One Square Meter?

In theory, the power consumption of an air source heat pump for heating one square meter is about 0.3 to 0.5 kWh. The actual power consumption varies depending on many factors, including the insulation of the house, usage habits, environmental conditions, etc.

For example, at an ambient temperature above 7°C, the energy efficiency of an air source heat pump can reach more than 3.7, that is, for every 1Kw of electricity consumed, at least 3.7 KW of heat can be absorbed from the air. This means that air source heat pumps are very energy-efficient under certain conditions.

Calculation example, assuming that a 100-square-meter residence uses an 18-kilowatt (KW) air source heat pump, which runs at full load for 8 hours a day, and the air source heat pump energy efficiency ratio is 4. Then, the daily power consumption is calculated as follows:

Then power consumption = (18KW ÷ 4) × 8h ≈ 36 degrees

Converted to power consumption per square meter, it is 36 degrees / 100 square meters = 0.36 degrees

If the unit price of electricity is 0.5 yuan/°C, the electricity cost per square meter for air source heat pump heating is 0.18 yuan/m².

In practice, a 100-square-meter personal residence does not need an air source heat pump with a power of 18 kilowatts. Generally, a few kilowatts is enough.