AIRTHERMIA RSJ-15/270RDB10N7-L1 vs AUSTRIA EMAIL 986153
Water heating efficiency ηwh: AIRTHERMIA RSJ-15/270RDB10N7-L1 128 %, AUSTRIA EMAIL 986153 138 %. The AUSTRIA EMAIL 986153 is better on 5 of 7 comparable points.
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Both models in detail
Who wins where
- AIRTHERMIA RSJ-15/270RDB10N7-L1
- AUSTRIA EMAIL 986153
Biggest differences
| Fact | RSJ-15/270RDB10N7-L1 | 986153 |
|---|---|---|
| Annual electricity use, colder climate | 1,614 kWh | 1,433 kWh |
| ηwh, colder climate | 104 % | 117 % |
| ηwh, warmer climate | 144 % | 162 % |
| Indoor sound power | 51 dB(A) | 47 dB(A) |
| Water heating efficiency ηwh | 128 % | 138 % |
| Outdoor sound power | 54 dB(A) | 58 dB(A) |
Score per area = position (0–100) relative to all 450 models in this category; higher is better.
| Technical specifications | AIRTHERMIARSJ-15/270RDB10N7-L1 | AUSTRIA EMAIL986153 |
|---|---|---|
| General | ||
| Load profile | XL1 | XL2 |
| Efficiency | ||
| Water heating efficiency ηwh | 128 %1 | 138 %✓2 |
| ηwh, colder climate | 104 %1 | 117 %✓2 |
| ηwh, warmer climate | 144 %1 | 162 %✓2 |
| Energy label | A+1 | A+2 |
| Annual electricity use, colder climate | 1,614 kWh1 | 1,433 kWh✓2 |
| Annual electricity use, warmer climate | 1,167 kWh✓1 | 1,211 kWh2 |
| Noise | ||
| Indoor sound power | 51 dB(A)1 | 47 dB(A)✓2 |
| Outdoor sound power | 54 dB(A)✓1 | 58 dB(A)2 |
Frequently asked questions
Which is better: the AIRTHERMIA RSJ-15/270RDB10N7-L1 or the AUSTRIA EMAIL 986153?
Water heating efficiency ηwh: AIRTHERMIA RSJ-15/270RDB10N7-L1 128 %, AUSTRIA EMAIL 986153 138 %. The AUSTRIA EMAIL 986153 is better on 5 of 7 comparable points.
What is the water heating efficiency ηwh of the AIRTHERMIA RSJ-15/270RDB10N7-L1 and the AUSTRIA EMAIL 986153?
AIRTHERMIA RSJ-15/270RDB10N7-L1: 128 %. AUSTRIA EMAIL 986153: 138 %.
Which is better on annual electricity use, colder climate: the AIRTHERMIA RSJ-15/270RDB10N7-L1 or the AUSTRIA EMAIL 986153?
AUSTRIA EMAIL 986153: 1,433 kWh. AIRTHERMIA RSJ-15/270RDB10N7-L1: 1,614 kWh.
Which is better on ηwh, colder climate: the AIRTHERMIA RSJ-15/270RDB10N7-L1 or the AUSTRIA EMAIL 986153?
AUSTRIA EMAIL 986153: 117 %. AIRTHERMIA RSJ-15/270RDB10N7-L1: 104 %.
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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