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
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	230V/1P/50Hz
Cooling capacity	3.35 kW
Cooling flow temperature	7–18 °C
EER (cooling)	3.15 at A35/W7
SEER (cooling)	4.93 at A35/W7
Operational Weight	78 kg
Sound power level	49 dB(A) (Sound Power LW(A))
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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Notes

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

Riello NXHP monobloc air-water heat pump, R290 (GWP100 0.02) natural refrigerant, rotary DC inverter. Minimum capacity control 40% of nominal; cap_min estimated from this. Cooling nominal capacity 4.0 kW / EER 4.15 at A35/W18. R290 natural refrigerant, GWP100 0.02.

✓ Verified via Heat Pump KEYMARK data

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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.