Heat Pump Performance: air_source_heating
Heat pump COP and capacity fraction data as a function of outdoor temperature (air-source) or entering water temperature (ground/water-source) — covers air-source heating/cooling, cold-climate ASHP, ground-source, and water-source heat pumps
| heat pump type | outdoor temp F | capacity fraction (dimensionless) | cop (dimensionless) | notes | power input kW (kW) |
|---|---|---|---|---|---|
| air_source_heating | -13 | 0.3 | 0.9 | Below rated minimum for standard ASHP; most single-speed units cannot operate at this temperature; cold-climate (NEEP-listed) units can maintain operation; auxiliary heat essential | 5.86 |
| air_source_heating | -5 | 0.4 | 1.2 | Below minimum for standard ASHP; cold-climate ASHP (e.g. Mitsubishi Hyper Heat Zuba) can operate to -13F | 5.86 |
| air_source_heating | 5 | 0.5 | 1.5 | Extreme cold; minimum usable operating point for most standard ASHP; backup heat essential | 5.86 |
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