Daikin Altherma 3 R ECH2O (EHSX04P30E/P50E + ERGA06EVH)
Specifications and technical data
Air Source (ASHP)ResidentialR326 kW
| Manufacturer | Daikin |
|---|---|
| Model | Altherma 3 R ECH2O |
| Model code | EHSX04P30E/P50E + ERGA06EVH |
| 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 | 6 kW |
| Max heating output (low temp) | 5.9 kW at A7/W45 |
| COP (heating) | 4.85 at A7/W35 |
| SCOP (heating) | 4.52 at W35 |
| Operating range (air) | -25 to 35 °C |
| Heating flow temperature | 18–65 °C |
| Electrical supply | 220-240V (Single Phase) |
| Cooling capacity | 5.96 kW |
| Max cooling output (high temp) | 5.09 kW at A35/W7 |
| Cooling flow temperature | 5–22 °C |
| EER (cooling) | 3.28 at A35/W7 |
| Dimensions (H×W×D) | 740 × 884 × 388 mm |
| Operational Weight | 58.5 kg |
| Sound power level | 60 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 ERGA06EVH outdoor unit, R32, 6.0kW nominal heating / 5.96kW 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 6kW — HeatpumpMonitor.org17 monitored systems listed (Sept 2026)
Alternatives to consider
Three Air Source (ASHP) heat pumps from other manufacturers closest in capacity to this one.
ESTIA BiBloc All-in-One
Toshiba · HWP-601HW-E AIO
- Capacity
- 2.1–6 kW
- SCOP
- 4.6 (W35)
- Sound power
- 58 dB(A)
- Refrigerant
- R290
Vitocal 150
Viessmann · Vitocal 150-A06
- Capacity
- 2.1–6 kW
- SCOP
- 4.9 (W35)
- Sound power
- 51 dB(A)
- Refrigerant
- R290
- Price
- £4,615–£4,643.62
Hydro Split R290
Haier · AW062HUGHA
- Capacity
- 6 kW
- SCOP
- 5.1 (W35)
- Sound power
- 58 dB(A)
- Refrigerant
- R290
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