Best Air Source Heat Pumps by SCOP (2026)
Top 10 of 1743 qualifying products · updated 2026-10-13
Ranked by SCOP (seasonal coefficient of performance) at a 35°C flow temperature — the fairest single measure of real-world heating efficiency. Only products with a published SCOP at W35 are included.
Every figure comes from the manufacturer’s published specification as recorded in the Heat Pump Database; near-identical variants (e.g. single- and three-phase versions with the same result) are shown once. The list updates automatically as new products are added.
| # | Model | Capacity | SCOP (W35) | Refrigerant | Noise |
|---|---|---|---|---|---|
| 1 |  Kronoterm ADAPTMAX | 35.4 kW | 5.82 | R290 | 49 dB(A) |
| 2 | Kronoterm ADAPTMAX | 70.4 kW | 5.81 | R290 | 52 dB(A) |
| 3 | Kronoterm ADAPTMAX | 106.1 kW | 5.8 | R290 | 54 dB(A) |
| 4 |  M-Tec AHPA722 | 7–22 kW | 5.6 | R290 | 53 dB(A) |
| 5 |  Acond Grandis-R | 8.8 kW | 5.58 | R290 | 47.7 dB(A) |
| 6 | M-Tec AHPA413 | 4–13 kW | 5.5 | R290 | 46 dB(A) |
| 7 | M-Tec WPLK722 | 4–22 kW | 5.49 | R410A | 53 dB(A) |
| 8 |  Amitime EcoSTAR R290 Pro Series M-HB | 3.7–12.2 kW | 5.48 | R290 | 50 dB(A) |
| 9 |  SOLARFOCUS vampAIR ECO | 3.7–12.2 kW | 5.48 | R290 | 50.3 dB(A) |
| 10 |  Haier HPM 14kW (400V) | 14 kW | 5.46 | R290 | 54 dB(A) |