AIRTHERMIA EU-RSJ-09/100RDN7-B1 vs Qlima A2W 108 W
Water heating efficiency ηwh: AIRTHERMIA EU-RSJ-09/100RDN7-B1 111 %, Qlima A2W 108 W 112 %. The Qlima A2W 108 W is better on 5 of 7 comparable points.
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Both models in detail
Who wins where
- AIRTHERMIA EU-RSJ-09/100RDN7-B1
- Qlima A2W 108 W
Biggest differences
| Fact | EU-RSJ-09/100RDN7-B1 | A2W 108 W |
|---|---|---|
| ηwh, colder climate | 92 % | 95 % |
| Annual electricity use, colder climate | 558 kWh | 543 kWh |
Score per area = position (0–100) relative to all 450 models in this category; higher is better.
| Technical specifications | AIRTHERMIAEU-RSJ-09/100RDN7-B1 | QlimaA2W 108 W |
|---|---|---|
| General | ||
| Load profile | M1 | M2 |
| Efficiency | ||
| Water heating efficiency ηwh | 111 %1 | 112 %✓2 |
| ηwh, colder climate | 92 %1 | 95 %✓2 |
| ηwh, warmer climate | 114 %1 | 115 %✓2 |
| Energy label | A+1 | A+2 |
| Annual electricity use, colder climate | 558 kWh1 | 543 kWh✓2 |
| Annual electricity use, warmer climate | 451 kWh1 | 448 kWh✓2 |
| Noise | ||
| Indoor sound power | 54 dB(A)1 | 54 dB(A)2 |
| Connectivity & smart | ||
| Smart control | Yes1 | Yes2 |
Frequently asked questions
Which is better: the AIRTHERMIA EU-RSJ-09/100RDN7-B1 or the Qlima A2W 108 W?
Water heating efficiency ηwh: AIRTHERMIA EU-RSJ-09/100RDN7-B1 111 %, Qlima A2W 108 W 112 %. The Qlima A2W 108 W is better on 5 of 7 comparable points.
What is the water heating efficiency ηwh of the AIRTHERMIA EU-RSJ-09/100RDN7-B1 and the Qlima A2W 108 W?
AIRTHERMIA EU-RSJ-09/100RDN7-B1: 111 %. Qlima A2W 108 W: 112 %.
Which is better on ηwh, colder climate: the AIRTHERMIA EU-RSJ-09/100RDN7-B1 or the Qlima A2W 108 W?
Qlima A2W 108 W: 95 %. AIRTHERMIA EU-RSJ-09/100RDN7-B1: 92 %.
Which is better on annual electricity use, colder climate: the AIRTHERMIA EU-RSJ-09/100RDN7-B1 or the Qlima A2W 108 W?
Qlima A2W 108 W: 543 kWh. AIRTHERMIA EU-RSJ-09/100RDN7-B1: 558 kWh.
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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