AIRTHERMIA RSJ-15/270RDB10N7-L1 vs Clivet SWAN-2 300
Water heating efficiency ηwh: AIRTHERMIA RSJ-15/270RDB10N7-L1 128 %, Clivet SWAN-2 300 123 %. The AIRTHERMIA RSJ-15/270RDB10N7-L1 is better on 6 of 7 comparable points.
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Both models in detail
Who wins where
- AIRTHERMIA RSJ-15/270RDB10N7-L1
- Clivet SWAN-2 300
Biggest differences
| Fact | RSJ-15/270RDB10N7-L1 | SWAN-2 300 |
|---|---|---|
| Annual electricity use, colder climate | 1,614 kWh | 1,845 kWh |
| ηwh, colder climate | 104 % | 91 % |
| Water heating efficiency ηwh | 128 % | 123 % |
| Indoor sound power | 51 dB(A) | 53 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 | ClivetSWAN-2 300 |
|---|---|---|
| General | ||
| Load profile | XL1 | XL2 |
| Efficiency | ||
| Water heating efficiency ηwh | 128 %✓1 | 123 %2 |
| ηwh, colder climate | 104 %✓1 | 91 %2 |
| ηwh, warmer climate | 144 %✓1 | 143 %2 |
| Energy label | A+1 | A+2 |
| Annual electricity use, colder climate | 1,614 kWh✓1 | 1,845 kWh2 |
| Annual electricity use, warmer climate | 1,167 kWh✓1 | 1,173 kWh2 |
| Noise | ||
| Indoor sound power | 51 dB(A)✓1 | 53 dB(A)2 |
| Outdoor sound power | 54 dB(A)1 | 53 dB(A)✓2 |
Frequently asked questions
Which is better: the AIRTHERMIA RSJ-15/270RDB10N7-L1 or the Clivet SWAN-2 300?
Water heating efficiency ηwh: AIRTHERMIA RSJ-15/270RDB10N7-L1 128 %, Clivet SWAN-2 300 123 %. The AIRTHERMIA RSJ-15/270RDB10N7-L1 is better on 6 of 7 comparable points.
What is the water heating efficiency ηwh of the AIRTHERMIA RSJ-15/270RDB10N7-L1 and the Clivet SWAN-2 300?
AIRTHERMIA RSJ-15/270RDB10N7-L1: 128 %. Clivet SWAN-2 300: 123 %.
Which is better on annual electricity use, colder climate: the AIRTHERMIA RSJ-15/270RDB10N7-L1 or the Clivet SWAN-2 300?
AIRTHERMIA RSJ-15/270RDB10N7-L1: 1,614 kWh. Clivet SWAN-2 300: 1,845 kWh.
Which is better on ηwh, colder climate: the AIRTHERMIA RSJ-15/270RDB10N7-L1 or the Clivet SWAN-2 300?
AIRTHERMIA RSJ-15/270RDB10N7-L1: 104 %. Clivet SWAN-2 300: 91 %.
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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