AIRTHERMIA EU-RSJ-09/150RDN7-B1 vs Midea RSJ-15/185RDN7-L1
Water heating efficiency ηwh: AIRTHERMIA EU-RSJ-09/150RDN7-B1 122 %, Midea RSJ-15/185RDN7-L1 131 %. The Midea RSJ-15/185RDN7-L1 is better on 3 of 7 comparable points.
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Both models in detail
Who wins where
- AIRTHERMIA EU-RSJ-09/150RDN7-B1
- Midea RSJ-15/185RDN7-L1
Biggest differences
| Fact | EU-RSJ-09/150RDN7-B1 | RSJ-15/185RDN7-L1 |
|---|---|---|
| Water heating efficiency ηwh | 122 % | 131 % |
| Annual electricity use, colder climate | 997 kWh | 1,048 kWh |
| ηwh, warmer climate | 137 % | 144 % |
| ηwh, colder climate | 103 % | 98 % |
| Annual electricity use, warmer climate | 746 kWh | 710 kWh |
Score per area = position (0–100) relative to all 450 models in this category; higher is better.
| Technical specifications | AIRTHERMIAEU-RSJ-09/150RDN7-B1 | MideaRSJ-15/185RDN7-L1 |
|---|---|---|
| General | ||
| Load profile | L1 | L2 |
| Efficiency | ||
| Water heating efficiency ηwh | 122 %1 | 131 %✓2 |
| ηwh, colder climate | 103 %✓1 | 98 %2 |
| ηwh, warmer climate | 137 %1 | 144 %✓2 |
| Energy label | A+1 | A+2 |
| Annual electricity use, colder climate | 997 kWh✓1 | 1,048 kWh2 |
| Annual electricity use, warmer climate | 746 kWh1 | 710 kWh✓2 |
| Noise | ||
| Indoor sound power | 56 dB(A)1 | 56 dB(A)2 |
| Connectivity & smart | ||
| Smart control | Yes1 | Yes2 |
Frequently asked questions
Which is better: the AIRTHERMIA EU-RSJ-09/150RDN7-B1 or the Midea RSJ-15/185RDN7-L1?
Water heating efficiency ηwh: AIRTHERMIA EU-RSJ-09/150RDN7-B1 122 %, Midea RSJ-15/185RDN7-L1 131 %. The Midea RSJ-15/185RDN7-L1 is better on 3 of 7 comparable points.
What is the water heating efficiency ηwh of the AIRTHERMIA EU-RSJ-09/150RDN7-B1 and the Midea RSJ-15/185RDN7-L1?
AIRTHERMIA EU-RSJ-09/150RDN7-B1: 122 %. Midea RSJ-15/185RDN7-L1: 131 %.
Which is better on annual electricity use, colder climate: the AIRTHERMIA EU-RSJ-09/150RDN7-B1 or the Midea RSJ-15/185RDN7-L1?
AIRTHERMIA EU-RSJ-09/150RDN7-B1: 997 kWh. Midea RSJ-15/185RDN7-L1: 1,048 kWh.
Which is better on ηwh, warmer climate: the AIRTHERMIA EU-RSJ-09/150RDN7-B1 or the Midea RSJ-15/185RDN7-L1?
Midea RSJ-15/185RDN7-L1: 144 %. AIRTHERMIA EU-RSJ-09/150RDN7-B1: 137 %.
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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