Airwell TFHM-150H-04M25 vs Bosch 7738340427
Water heating efficiency ηwh: Airwell TFHM-150H-04M25 122 %, Bosch 7738340427 120 %. The Bosch 7738340427 is better on 4 of 8 comparable points.
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Both models in detail
Who wins where
- Airwell TFHM-150H-04M25
- Bosch 7738340427
Biggest differences
| Fact | TFHM-150H-04M25 | 7738340427 |
|---|---|---|
| Outdoor sound power | 56 dB(A) | 63 dB(A) |
| ηwh, warmer climate | 137 % | 146 % |
| Annual electricity use, warmer climate | 746 kWh | 702 kWh |
| Annual electricity use, colder climate | 997 kWh | 977 kWh |
Score per area = position (0–100) relative to all 450 models in this category; higher is better.
| Technical specifications | AirwellTFHM-150H-04M25 | Bosch7738340427 |
|---|---|---|
| General | ||
| Load profile | L1 | L2 |
| Efficiency | ||
| Water heating efficiency ηwh | 122 %✓1 | 120 %2 |
| ηwh, colder climate | 103 %1 | 105 %✓2 |
| ηwh, warmer climate | 137 %1 | 146 %✓2 |
| Energy label | A+1 | A+2 |
| Annual electricity use, colder climate | 997 kWh1 | 977 kWh✓2 |
| Annual electricity use, warmer climate | 746 kWh1 | 702 kWh✓2 |
| Noise | ||
| Indoor sound power | 56 dB(A)1 | 56 dB(A)2 |
| Outdoor sound power | 56 dB(A)✓1 | 63 dB(A)2 |
| Connectivity & smart | ||
| Smart control | Yes✓1 | No2 |
Frequently asked questions
Which is better: the Airwell TFHM-150H-04M25 or the Bosch 7738340427?
Water heating efficiency ηwh: Airwell TFHM-150H-04M25 122 %, Bosch 7738340427 120 %. The Bosch 7738340427 is better on 4 of 8 comparable points.
What is the water heating efficiency ηwh of the Airwell TFHM-150H-04M25 and the Bosch 7738340427?
Airwell TFHM-150H-04M25: 122 %. Bosch 7738340427: 120 %.
Which is better on outdoor sound power: the Airwell TFHM-150H-04M25 or the Bosch 7738340427?
Airwell TFHM-150H-04M25: 56 dB(A). Bosch 7738340427: 63 dB(A).
Which is better on ηwh, warmer climate: the Airwell TFHM-150H-04M25 or the Bosch 7738340427?
Bosch 7738340427: 146 %. Airwell TFHM-150H-04M25: 137 %.
Related comparisons
How we collect and check this data →
Sources
- European Product Registry for Energy Labelling (EPREL) – water heaters — Europese Commissie · accessed 13 Oct 2026
- European Product Registry for Energy Labelling (EPREL) – water heaters — Europese Commissie · accessed 13 Oct 2026