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Warmflow Zeno AS03 R290

Specifications and technical data

Air Source (ASHP)ResidentialR2908–22 kW
ManufacturerWarmflow
ModelZeno AS03 R290
Model codeAS03-R290
Heat pump typeAir Source (ASHP)
ApplicationResidential
RefrigerantR290
ModeHeating only
Heating capacity8–22 kW
Max heating output (low temp)22 kW at A7/W35
COP (heating)4.71 at A7/W35
SCOP (heating)4.65 at W35
Operating range (air)-25 to 43 °C
Heating flow temperature20–75 °C
Electrical supply230V/1P/50Hz
Dimensions (H×W×D)1330 × 1250 × 540 mm
Operational Weight202 kg
Sound power level64 dB(A) (Sound Power LW(A))
Price (unit only)£5650–£None (checked 17/07/2026)
Data added17/07/2026
Data sourceManufacturer Brochure (6664-ISSUE-K-WEB.pdf, pp.27-30)
MCS certification✓ MCS listed — eligible for Boiler Upgrade Scheme (MCS-certified install required)
MCS certificate no.BSI KM 612798/11
MCS listingView on MCS ↗

View manufacturer page →

Monobloc R290 air source heat pump, touchscreen control, Warmlink app remote control/diagnostics, built-in Grundfos high-efficiency circulation pump, qualifies for BUS/government grants in England, Scotland & Wales

Where to buy (UK)

UK SupplierPlumbnation
UK SupplierInspired Heating
UK SupplierWolseley
UK SupplierCity Plumbing

✓ 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.

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