Daikin Altherma 3 R ECH2O (EHSX04P30E/P50E + ERGA08EVH)
Specifications and technical data
Air Source (ASHP)ResidentialR327.8 kW
| Manufacturer | Daikin |
|---|---|
| Model | Altherma 3 R ECH2O |
| Model code | EHSX04P30E/P50E + ERGA08EVH |
| Heat pump type | Air Source (ASHP) All Air Source heat pumps → |
| Application | Residential All Residential heat pumps → |
| Refrigerant | R32 All R32 heat pumps → |
| Mode | Heating & cooling |
| Heating capacity | 7.8 kW |
| Max heating output (low temp) | 7.8 kW at A7/W45 |
| COP (heating) | 4.6 at A7/W35 |
| SCOP (heating) | 4.61 at W35 |
| Operating range (air) | -25 to 35 °C |
| Heating flow temperature | 18–65 °C |
| Electrical supply | 220-240V (Single Phase) |
| Cooling capacity | 6.25 kW |
| Max cooling output (high temp) | 5.44 kW at A35/W7 |
| Cooling flow temperature | 5–22 °C |
| EER (cooling) | 3.14 at A35/W7 |
| Dimensions (H×W×D) | 740 × 884 × 388 mm |
| Operational Weight | 58.5 kg |
| Sound power level | 62 dB(A) (Sound Power LW(A)) |
| Data added | 2026-07-07T00:00:00 |
| Data source | Manufacturer Data Sheet |
| Verification | Verified by a human |
Check noise at a neighbour’s window (MCS 020 a) →
Daikin Altherma 3 R ECH2O EHSX04P30E/P50E with ERGA08EVH outdoor unit, R32, 7.5kW nominal heating / 6.25kW cooling. ECH2O solar-ready cylinder, reversible heating and cooling.
Where to buy (UK)
| UK Supplier | The Heat Pump Warehouse |
|---|---|
| UK Supplier | Space Air |
| UK Supplier | City Plumbing |
| UK Supplier | The Underfloor Heating Store |
✎ Suggest a correction to this data
Data is compiled from manufacturer sources and may contain errors or gaps. Always confirm specifications with the manufacturer before making decisions.
Reviews & further reading
- Manufacturer Daikin Altherma 3 R ECH2O — Daikin
- Review Daikin Altherma 3 Air Source Heat Pump Review — Federation of Master BuildersCovers the Altherma 3 range generally, including the R ECH2O integrated cylinder variant.
- Review Daikin Altherma 3 Heat Pump Range — Heat Pump HQCovers the wider Daikin range
- Review Daikin Heat Pump Review UK: Altherma Range, COP, Price, Pros and Cons — Home Heat Pump GuideCovers the wider Daikin range
- Review Daikin Altherma 3 Review: Is It the Right Heat Pump for Your Home? — Home Energy QuotesCovers the wider Daikin range
- Real-world data Real-world performance: Daikin Altherma 3 8kW — HeatpumpMonitor.org29 monitored systems listed (Sept 2026)
Alternatives to consider
Three Air Source (ASHP) heat pumps from other manufacturers closest in capacity to this one.
Split Aqua
Haier · AU082FYCRA(HW)
- Capacity
- 7.8 kW
- SCOP
- 4.47 (W35)
- Sound power
- 64 dB(A)
- Refrigerant
- R32
- Price
- ~£1,643.37
WPL ACS classic
Stiebel Eltron · WPL 17 ACS classic
- Capacity
- 7.8 kW
- SCOP
- 4.61 (W35)
- Sound power
- 57 dB(A)
- Refrigerant
- R410A
Compress 5800i AW
Bosch · CS5800iAW 7 OR-S
- Capacity
- 7.97 kW
- SCOP
- 4.58 (W35)
- Sound power
- 42 dB(A)
- Refrigerant
- R290
More from Daikin
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Altherma 3 H HT
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Altherma 3 H HT
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H-2600 CO₂
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NX-Q-G06
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NX-Q-G06
ASHP · 174.6 kW
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