Daikin Altherma 3 R W (4.6 kW)

Specifications and technical data

Air Source (ASHP)ResidentialR324.6 kW

Manufacturer	Daikin
Model	Altherma 3 R W
Model code	EHBX04E6V + ERGA04EV
Heat pump type	Air Source (ASHP)
Application	Residential
Refrigerant	R32
Mode	Heating & cooling
Heating capacity	4.6 kW
Max heating output (low temp)	4.6 kW at A7/W45
COP (heating)	5.1 at A7/W35
SCOP (heating)	4.54 at W35
Operating range (air)	-25 to 35 °C
Heating flow temperature	15–65 °C
Electrical supply	220-240V (Single Phase)
Cooling capacity	4.86 kW
Max cooling output (high temp)	4.52 kW at A35/W7
Cooling flow temperature	5–22 °C
EER (cooling)	3.32 at A35/W18
Dimensions (H×W×D)	740 × 884 × 388 mm
Operational Weight	58.5 kg
Sound power level	58 dB(A) (Sound Power LW(A))
Data added	2026-07-07T00:00:00
Data source	Manufacturer Data Sheet
MCS certification	✓ MCS listed — eligible for Boiler Upgrade Scheme (MCS-certified install required)
MCS certificate no.	ERGA04EVA / EHBX04E6V
MCS listing	View on MCS ↗

View manufacturer page →

Daikin Altherma 3 R W EHBX04E6V with ERGA04EV outdoor unit, R32, 4.3kW nominal heating / 4.86kW cooling. Wall-mounted, reversible, no integrated tank; combine with separate stainless tank or ECH2O thermal store.

Where to buy (UK)

UK Supplier	The Heat Pump Warehouse
UK Supplier	Space Air
UK Supplier	City Plumbing
UK Supplier	The Underfloor Heating Store

✓ Manually verified by Heat Pump Database

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Data is compiled from manufacturer sources and may contain errors or gaps. Always confirm specifications with the manufacturer before making decisions.

Reviews & further reading

Review Daikin Altherma 3 Air Source Heat Pump Review — Federation of Master Builders
Covers the Altherma 3 range generally, including the R W variant.