Riello NXHP 004

Specifications and technical data

Air Source (ASHP)ResidentialR2901.58–3.95 kW

Manufacturer	Riello
Model	NXHP 004
Model code	NXHP 004
Heat pump type	Air Source (ASHP)
Application	Residential
Refrigerant	R290
Mode	Heating & cooling
Heating capacity	1.58–3.95 kW
Max heating output (low temp)	3.75 kW at A7/W55
COP (heating)	4.9 at A7/W35
SCOP (heating)	4.7 at W35
Heating flow temperature	up to 75 °C
Power input	3.5 kW
Electrical supply	220-240V (Single Phase)
Cooling capacity	4 kW
Max cooling output (high temp)	3.35 kW at A35/W7
Cooling flow temperature	7–18 °C
EER (cooling)	3.15 at A35/W7
SEER (cooling)	4.93 at W7
Operational Weight	78 kg
Sound power level	49 dB(A) (Sound Power LW(A))
Price (unit only)	~£2358.33 (checked 28/08/2026)
Data added	2026-07-06
Data source	Manufacturer Data Sheet
MCS certification	✓ MCS listed — eligible for Boiler Upgrade Scheme (MCS-certified install required)
MCS certificate no.	011-1W0616
MCS listing	View on MCS ↗

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Riello NXHP 004 is a 3.95 kW air source heat pump, providing heating and cooling, using R290 refrigerant.

Where to buy (UK)

UK Supplier	Midsummer Wholesale
UK Supplier	UK Renewable Supplies
UK Supplier	Eco Wizard
UK Supplier	Quality Heating

✓ 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.