Wärme Pumpen COP Rechner
Berechnen Sie heat pump coefficient of performance und compare operating costs to gas furnaces.
Coefficient of Performance
3.52 COP
Coefficient of Performance vs Electricity Rate
Formel
How to Calculate Heat Pump COP
COP measures how efficiently a heat pump converts electricity into heat.
Formula
COP = Heat Output (BTU/hr) / (Electrical Input (W) * 3.412)
A COP of 3 means the heat pump produces 3 units of heat for every 1 unit of electricity. This is possible because heat pumps move existing heat rather than generating it.
Typical COP Values
Lösungsbeispiel
A heat pump producing 36,000 BTU/hr using 3,000W of electricity, running 2,000 hours/year at $0.15/kWh.
- 01COP: 36,000 / (3,000 * 3.412) = 36,000 / 10,236 = 3.52
- 02Annual electricity: 3,000 * 2,000 / 1,000 = 6,000 kWh
- 03Heat pump cost: 6,000 * $0.15 = $900
- 04Gas furnace equivalent: 36,000 * 2,000 / 100,000 * $1.50 / 0.92 = $1,174
Häufig Gestellte Fragen
What is a good COP for a heat pump?
A COP of 3.0+ is good for air-source heat pumps. Ground-source systems can achieve 4.0-5.0. COP decreases as outdoor temperature drops for air-source units.
How does COP relate to HSPF?
HSPF (Heating Seasonal Performance Factor) is the seasonal average efficiency. COP is measured at a specific condition. Roughly, HSPF / 3.412 = seasonal average COP.
Do heat pumps work below freezing?
Modern cold-climate heat pumps maintain efficiency down to -15F or lower. Older models lost significant capacity below 30F, but newer variable-speed compressors have largely solved this.