Inventor MX290-40T vs AUX ACHM-H40/5R2A
SCOP (35 °C): Inventor MX290-40T 4.2, AUX ACHM-H40/5R2A 4.7. The AUX ACHM-H40/5R2A is better on 9 of 14 comparable points.
Who wins where
- Inventor MX290-40T
- AUX ACHM-H40/5R2A
Biggest differences
| Fact | MX290-40T | ACHM-H40/5R2A |
|---|---|---|
| COP A7/W35 | 3.7 | 6.84 |
| COP A2/W35 | 3.15 | 4.42 |
| Outdoor unit sound power | 76 dB(A) | 57 dB(A) |
| Seasonal efficiency ηs 55 °C | 132.5 % | 155 % |
| SCOP (55 °C) | 3.39 | 3.95 |
| Rated output 55 °C | 39 kW | 34 kW |
Score per area = position (0–100) relative to all 1350 models in this category; higher is better.
| Technical specifications | InventorMX290-40T | AUXACHM-H40/5R2A |
|---|---|---|
| General | ||
| Type (source) | Air-to-water 1 | Air-to-water 1 |
| Performance | ||
| Heating capacity (A7/W35) | 39 kW 2 | 40 kW ✓ 3 |
| Rated output 35 °C | 39 kW 1 | 39 kW 1 |
| Rated output 55 °C | 39 kW ✓ 1 | 34 kW 1 |
| Min. outdoor temperature | -22 °C 2 | – |
| Efficiency | ||
| SCOP (35 °C) | 4.2 1 | 4.7 ✓ 1 |
| SCOP (55 °C) | 3.39 1 | 3.95 ✓ 1 |
| Seasonal efficiency ηs 35 °C | 165.1 % 1 | 185 % ✓ 1 |
| Seasonal efficiency ηs 55 °C | 132.5 % 1 | 155 % ✓ 1 |
| Energy label 35 °C | A, , 2 | A, , , 3 |
| Energy label 55 °C | A, , 2 | A, , , 3 |
| COP A7/W35 | 3.7 1 | 6.84 ✓ 1 |
| COP A2/W35 | 3.15 1 | 4.42 ✓ 1 |
| COP A-7/W35 | 2.5 1 | 2.71 ✓ 1 |
| Noise | ||
| Outdoor unit sound power | 76 dB(A) 1 | 57 dB(A) ✓ 1 |
| Refrigerant | ||
| Refrigerant | R290 1 | R290 1 |
| Refrigerant GWP | 3 2 | 3 3 |
| Refrigerant charge | 2.9 kg 1 | 2.9 kg 1 |
| Electrical | ||
| Max. power input | 15.96 kW 1 | 21 kW 1 |
| Connectivity & smart | ||
| SG Ready | Yes 1 | Yes 1 |
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