AERMEC SWP301 vs Hitachi RAM-Y85N5HAE + TAW-190RHD
Water heating efficiency ηwh: AERMEC SWP301 124 %, Hitachi RAM-Y85N5HAE + TAW-190RHD 110 %. The AERMEC SWP301 is better on 7 of 7 comparable points.
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Both models in detail
Who wins where
- AERMEC SWP301
- Hitachi RAM-Y85N5HAE + TAW-190RHD
Biggest differences
| Fact | SWP301 | RAM-Y85N5HAE + TAW-190RHD |
|---|---|---|
| Annual electricity use, colder climate | 826 kWh | 1,056 kWh |
| ηwh, colder climate | 124 % | 97 % |
| Water heating efficiency ηwh | 124 % | 110 % |
| Indoor sound power | 60 dB(A) | 65 dB(A) |
| Outdoor sound power | 60 dB(A) | 65 dB(A) |
Score per area = position (0–100) relative to all 450 models in this category; higher is better.
| Technical specifications | AERMECSWP301 | HitachiRAM-Y85N5HAE + TAW-190RHD |
|---|---|---|
| General | ||
| Load profile | L1 | L2 |
| Efficiency | ||
| Water heating efficiency ηwh | 124 %✓1 | 110 %2 |
| ηwh, colder climate | 124 %✓1 | 97 %2 |
| ηwh, warmer climate | 124 %✓1 | 122 %2 |
| Energy label | A+1 | A2 |
| Annual electricity use, colder climate | 826 kWh✓1 | 1,056 kWh2 |
| Annual electricity use, warmer climate | 826 kWh✓1 | 840 kWh2 |
| Noise | ||
| Indoor sound power | 60 dB(A)✓1 | 65 dB(A)2 |
| Outdoor sound power | 60 dB(A)✓1 | 65 dB(A)2 |
Frequently asked questions
Which is better: the AERMEC SWP301 or the Hitachi RAM-Y85N5HAE + TAW-190RHD?
Water heating efficiency ηwh: AERMEC SWP301 124 %, Hitachi RAM-Y85N5HAE + TAW-190RHD 110 %. The AERMEC SWP301 is better on 7 of 7 comparable points.
What is the water heating efficiency ηwh of the AERMEC SWP301 and the Hitachi RAM-Y85N5HAE + TAW-190RHD?
AERMEC SWP301: 124 %. Hitachi RAM-Y85N5HAE + TAW-190RHD: 110 %.
Which is better on annual electricity use, colder climate: the AERMEC SWP301 or the Hitachi RAM-Y85N5HAE + TAW-190RHD?
AERMEC SWP301: 826 kWh. Hitachi RAM-Y85N5HAE + TAW-190RHD: 1,056 kWh.
Which is better on ηwh, colder climate: the AERMEC SWP301 or the Hitachi RAM-Y85N5HAE + TAW-190RHD?
AERMEC SWP301: 124 %. Hitachi RAM-Y85N5HAE + TAW-190RHD: 97 %.
Related comparisons
How we collect and check this data →
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