AIRTHERMIA EU-RSJ-09/100RDN7-B1 vs AUSTRIA EMAIL 964053
Water heating efficiency ηwh: AIRTHERMIA EU-RSJ-09/100RDN7-B1 111 %, AUSTRIA EMAIL 964053 113 %. The AUSTRIA EMAIL 964053 is better on 6 of 7 comparable points.
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Both models in detail
Who wins where
- AIRTHERMIA EU-RSJ-09/100RDN7-B1
- AUSTRIA EMAIL 964053
Biggest differences
| Fact | EU-RSJ-09/100RDN7-B1 | 964053 |
|---|---|---|
| Indoor sound power | 54 dB(A) | 37 dB(A) |
| Annual electricity use, warmer climate | 451 kWh | 383 kWh |
| ηwh, warmer climate | 114 % | 134 % |
| Annual electricity use, colder climate | 558 kWh | 508 kWh |
| ηwh, colder climate | 92 % | 101 % |
Score per area = position (0–100) relative to all 450 models in this category; higher is better.
| Technical specifications | AIRTHERMIAEU-RSJ-09/100RDN7-B1 | AUSTRIA EMAIL964053 |
|---|---|---|
| General | ||
| Load profile | M1 | M2 |
| Efficiency | ||
| Water heating efficiency ηwh | 111 %1 | 113 %✓2 |
| ηwh, colder climate | 92 %1 | 101 %✓2 |
| ηwh, warmer climate | 114 %1 | 134 %✓2 |
| Energy label | A+1 | A+2 |
| Annual electricity use, colder climate | 558 kWh1 | 508 kWh✓2 |
| Annual electricity use, warmer climate | 451 kWh1 | 383 kWh✓2 |
| Noise | ||
| Indoor sound power | 54 dB(A)1 | 37 dB(A)✓2 |
| Outdoor sound power | – | 43 dB(A)2 |
| Connectivity & smart | ||
| Smart control | Yes1 | Yes2 |
Frequently asked questions
Which is better: the AIRTHERMIA EU-RSJ-09/100RDN7-B1 or the AUSTRIA EMAIL 964053?
Water heating efficiency ηwh: AIRTHERMIA EU-RSJ-09/100RDN7-B1 111 %, AUSTRIA EMAIL 964053 113 %. The AUSTRIA EMAIL 964053 is better on 6 of 7 comparable points.
What is the water heating efficiency ηwh of the AIRTHERMIA EU-RSJ-09/100RDN7-B1 and the AUSTRIA EMAIL 964053?
AIRTHERMIA EU-RSJ-09/100RDN7-B1: 111 %. AUSTRIA EMAIL 964053: 113 %.
Which is better on indoor sound power: the AIRTHERMIA EU-RSJ-09/100RDN7-B1 or the AUSTRIA EMAIL 964053?
AUSTRIA EMAIL 964053: 37 dB(A). AIRTHERMIA EU-RSJ-09/100RDN7-B1: 54 dB(A).
Which is better on annual electricity use, warmer climate: the AIRTHERMIA EU-RSJ-09/100RDN7-B1 or the AUSTRIA EMAIL 964053?
AUSTRIA EMAIL 964053: 383 kWh. AIRTHERMIA EU-RSJ-09/100RDN7-B1: 451 kWh.
Related comparisons
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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