AUX ACHP-H08/4R3HA-M vs TCL THM8DFC
SCOP (35 °C): AUX ACHP-H08/4R3HA-M 5.2, TCL THM8DFC 5.84. The TCL THM8DFC is better on 10 of 13 comparable points.
Who wins where
- AUX ACHP-H08/4R3HA-M
- TCL THM8DFC
Biggest differences
| Fact | ACHP-H08/4R3HA-M | THM8DFC |
|---|---|---|
| Refrigerant GWP | 675 | 3 |
| Seasonal efficiency ηs 55 °C | 132 % | 172.1 % |
| SCOP (55 °C) | 3.38 | 4.38 |
| Rated output 55 °C | 6.6 kW | 8.1 kW |
| Refrigerant charge | 1.45 kg | 1.2 kg |
| Outdoor unit sound power | 59 dB(A) | 51.94 dB(A) |
Score per area = position (0–100) relative to all 1350 models in this category; higher is better.
| Technical specifications | AUXACHP-H08/4R3HA-M | TCLTHM8DFC |
|---|---|---|
| Grants & market | ||
| Boiler Upgrade Scheme | £7,500 – £9,000 | £7,500 – £9,000 |
| General | ||
| Type (source) | Air-to-water 1 | Air-to-water 1 |
| Performance | ||
| Heating capacity (A7/W35) | 8.4 kW ✓ 2 | 8 kW 3 |
| Rated output 35 °C | 8.1 kW 1 | 8.1 kW 1 |
| Rated output 55 °C | 6.6 kW 1 | 8.1 kW ✓ 1 |
| Min. outdoor temperature | – | -22 °C 3 |
| Efficiency | ||
| SCOP (35 °C) | 5.2 1 | 5.84 ✓ 1 |
| SCOP (55 °C) | 3.38 1 | 4.38 ✓ 1 |
| Seasonal efficiency ηs 35 °C | 205 % 1 | 230.7 % ✓ 1 |
| Seasonal efficiency ηs 55 °C | 132 % 1 | 172.1 % ✓ 1 |
| Energy label 35 °C | A, , , 2 | A, , , 3 |
| Energy label 55 °C | A, , 2 | A, , , 3 |
| COP A7/W35 | 5.2 1 | 5.3 ✓ 3 |
| COP A2/W35 | 5.09 1 | – |
| COP A-7/W35 | 3.3 1 | 3.54 ✓ 1 |
| Noise | ||
| Outdoor unit sound power | 59 dB(A) 1 | 51.94 dB(A) ✓ 1 |
| Refrigerant | ||
| Refrigerant | R32 1 | R290 1 |
| Refrigerant GWP | 675 2 | 3 ✓ 3 |
| Refrigerant charge | 1.45 kg 1 | 1.2 kg ✓ 1 |
| Electrical | ||
| Max. power input | 7.56 kW 1 | 3.8 kW 1 |
| Connectivity & smart | ||
| SG Ready | Yes 1 | Yes 1 |
| Grants & market | ||
| ISDE grant (NL) | – | 2,800 € 4 |
Sources
- List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026
- Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026
- Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026
- ISDE heat pump notification code list — Rijksdienst voor Ondernemend Nederland (RVO) · accessed 28 Sept 2026