Airwell TFHM-100H-04M25 vs Bosch 7738340431
Water heating efficiency ηwh: Airwell TFHM-100H-04M25 111 %, Bosch 7738340431 120 %. Both models win equally often (4 of 8 points).
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Both models in detail
Who wins where
- Airwell TFHM-100H-04M25
- Bosch 7738340431
Biggest differences
| Fact | TFHM-100H-04M25 | 7738340431 |
|---|---|---|
| Annual electricity use, warmer climate | 451 kWh | 361 kWh |
| ηwh, warmer climate | 114 % | 142 % |
| ηwh, colder climate | 92 % | 85 % |
| Water heating efficiency ηwh | 111 % | 120 % |
| Annual electricity use, colder climate | 558 kWh | 603 kWh |
| Indoor sound power | 54 dB(A) | 50 dB(A) |
Score per area = position (0–100) relative to all 450 models in this category; higher is better.
| Technical specifications | AirwellTFHM-100H-04M25 | Bosch7738340431 |
|---|---|---|
| General | ||
| Load profile | M1 | M2 |
| Efficiency | ||
| Water heating efficiency ηwh | 111 %1 | 120 %✓2 |
| ηwh, colder climate | 92 %✓1 | 85 %2 |
| ηwh, warmer climate | 114 %1 | 142 %✓2 |
| Energy label | A+1 | A+2 |
| Annual electricity use, colder climate | 558 kWh✓1 | 603 kWh2 |
| Annual electricity use, warmer climate | 451 kWh1 | 361 kWh✓2 |
| Noise | ||
| Indoor sound power | 54 dB(A)1 | 50 dB(A)✓2 |
| Outdoor sound power | 54 dB(A)✓1 | 58 dB(A)2 |
| Connectivity & smart | ||
| Smart control | Yes✓1 | No2 |
Frequently asked questions
Which is better: the Airwell TFHM-100H-04M25 or the Bosch 7738340431?
Water heating efficiency ηwh: Airwell TFHM-100H-04M25 111 %, Bosch 7738340431 120 %. Both models win equally often (4 of 8 points).
What is the water heating efficiency ηwh of the Airwell TFHM-100H-04M25 and the Bosch 7738340431?
Airwell TFHM-100H-04M25: 111 %. Bosch 7738340431: 120 %.
Which is better on annual electricity use, warmer climate: the Airwell TFHM-100H-04M25 or the Bosch 7738340431?
Bosch 7738340431: 361 kWh. Airwell TFHM-100H-04M25: 451 kWh.
Which is better on ηwh, warmer climate: the Airwell TFHM-100H-04M25 or the Bosch 7738340431?
Bosch 7738340431: 142 %. Airwell TFHM-100H-04M25: 114 %.
Related comparisons
How we collect and check this data →
Sources
- European Product Registry for Energy Labelling (EPREL) – water heaters — Europese Commissie · accessed Oct 13, 2026
- European Product Registry for Energy Labelling (EPREL) – water heaters — Europese Commissie · accessed Oct 13, 2026