Catalog · EPREL registry
European heat-pump models
21 models indexed from the European Commission's EPREL registry. Filter by type, capacity, refrigerant, energy class or sound power to narrow candidates.
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Best models by SCOP
Highest seasonal efficiency rankings — overall, air-to-water and ground-source.
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Tariffs, climate and subsidies for 32 European countries — see where the economics work.
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Climate-aware sizing from country HDD, floor area and insulation grade.
Open →EPREL
Official EU energy-label registry. Every heat pump sold in the EU must be listed by its supplier — these are not marketing claims, they're the figures regulators see.
SCOP
Seasonal efficiency. 1 kWh electricity → SCOP kWh of heat over a heating season. 4.0 is competent, 4.5+ is good, 5.0+ is excellent.
Energy class
A++++ (APPP) is current top class for heating. Anything below A is uncompetitive. Cooling labels are separate.
Quick filters
Calla Verde S 16A
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.75
- Capacity
- 13kW
- Noise (out)
- 52dB
Calla Verde S 14A
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.73
- Capacity
- 12kW
- Noise (out)
- 50dB
Calla Verde M 14A
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.73
- Capacity
- 12kW
- Noise (out)
- 50dB
Calla Verde M 20A
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.70
- Capacity
- 16kW
- Noise (out)
- 54dB
Calla Verde M 18A
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.70
- Capacity
- 14kW
- Noise (out)
- 53dB
Calla Verde S 20A
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.70
- Capacity
- 16kW
- Noise (out)
- 54dB
Calla Verde M16
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.55
- Capacity
- 13kW
- Noise (out)
- 54dB
Calla Verde S16
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.55
- Capacity
- 13kW
- Noise (out)
- 54dB
Calla Verde S14
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.53
- Capacity
- 10kW
- Noise (out)
- 53dB
Calla Verde M18
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.53
- Capacity
- 14kW
- Noise (out)
- 54dB
Calla Verde S18
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.53
- Capacity
- 14kW
- Noise (out)
- 54dB
Calla Verde M14
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.53
- Capacity
- 10kW
- Noise (out)
- 53dB
Calla Verde S20
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.47
- Capacity
- 14kW
- Noise (out)
- 54dB
Calla Verde M20
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.47
- Capacity
- 14kW
- Noise (out)
- 54dB
Calla Verde S9
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.28
- Capacity
- 7kW
- Noise (out)
- 50dB
Calla Verde M12
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.25
- Capacity
- 8kW
- Noise (out)
- 52dB
Calla Verde S12
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.25
- Capacity
- 8kW
- Noise (out)
- 52dB
Calla Verde M7
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.17
- Capacity
- 6kW
- Noise (out)
- 56dB
Calla Verde S5
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.15
- Capacity
- 5kW
- Noise (out)
- 56dB
Calla Verde S 5A
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.10
- Capacity
- 5kW
- Noise (out)
- 54dB
Calla Verde S 7A
HT Heiztechnik Sp. z o.o. · Air-to-water
- SCOP
- 4.10
- Capacity
- 6kW
- Noise (out)
- 55dB
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Open the picker →Source: European Commission, EPREL Public API. Snapshot of 2026-05-08. SCOP figures derived from supplier-reported ηs — see methodology.