Airwell TFHM-150H-04M25 vs Indol Compact W253A++
Water heating efficiency ηwh: Airwell TFHM-150H-04M25 122 %, Indol Compact W253A++ 152 %. The Indol Compact W253A++ is better on 7 of 8 comparable points.
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Both models in detail
Who wins where
- Airwell TFHM-150H-04M25
- Indol Compact W253A++
Biggest differences
| Fact | TFHM-150H-04M25 | Compact W253A++ |
|---|---|---|
| Annual electricity use, colder climate | 997 kWh | 673 kWh |
| ηwh, colder climate | 103 % | 152 % |
| Water heating efficiency ηwh | 122 % | 152 % |
| Indoor sound power | 56 dB(A) | 45 dB(A) |
| Outdoor sound power | 56 dB(A) | 45 dB(A) |
| ηwh, warmer climate | 137 % | 152 % |
Score per area = position (0–100) relative to all 450 models in this category; higher is better.
| Technical specifications | AirwellTFHM-150H-04M25 | IndolCompact W253A++ |
|---|---|---|
| General | ||
| Load profile | L1 | L2 |
| Efficiency | ||
| Water heating efficiency ηwh | 122 %1 | 152 %✓2 |
| ηwh, colder climate | 103 %1 | 152 %✓2 |
| ηwh, warmer climate | 137 %1 | 152 %✓2 |
| Energy label | A+1 | A+2 |
| Annual electricity use, colder climate | 997 kWh1 | 673 kWh✓2 |
| Annual electricity use, warmer climate | 746 kWh1 | 673 kWh✓2 |
| Noise | ||
| Indoor sound power | 56 dB(A)1 | 45 dB(A)✓2 |
| Outdoor sound power | 56 dB(A)1 | 45 dB(A)✓2 |
| Connectivity & smart | ||
| Smart control | Yes1 | Yes2 |
Frequently asked questions
Which is better: the Airwell TFHM-150H-04M25 or the Indol Compact W253A++?
Water heating efficiency ηwh: Airwell TFHM-150H-04M25 122 %, Indol Compact W253A++ 152 %. The Indol Compact W253A++ is better on 7 of 8 comparable points.
What is the water heating efficiency ηwh of the Airwell TFHM-150H-04M25 and the Indol Compact W253A++?
Airwell TFHM-150H-04M25: 122 %. Indol Compact W253A++: 152 %.
Which is better on annual electricity use, colder climate: the Airwell TFHM-150H-04M25 or the Indol Compact W253A++?
Indol Compact W253A++: 673 kWh. Airwell TFHM-150H-04M25: 997 kWh.
Which is better on ηwh, colder climate: the Airwell TFHM-150H-04M25 or the Indol Compact W253A++?
Indol Compact W253A++: 152 %. Airwell TFHM-150H-04M25: 103 %.
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