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Warmflow Zeno GS03

Specifications and technical data

GSHP (Brine/Water)ResidentialR410A4.5–18 kW
ManufacturerWarmflow
ModelZeno GS03
Model codeGS03
Heat pump typeGSHP (Brine/Water)
ApplicationResidential
RefrigerantR410A
ModeHeating only
Heating capacity4.5–18 kW
Max heating output (low temp)8.53 kW at B0/W35
COP (heating)4.87 at B0/W35
Operating range (air)-5 to 15 °C
Heating flow temperature30–60 °C
Electrical supply220-240V (Single Phase)
Dimensions (H×W×D)890 × 590 × 660 mm
Operational Weight130 kg
Price (unit only)£10405.65–£10624.69 (checked 2026-07-17)
Data added17/07/2026
Data sourceUK Retailer Pricing (Wolseley £10,624.69 ex VAT; City Plumbing £12,486.78 inc VAT listed as model GS16), ex VAT shown
MCS certification✓ MCS listed — eligible for Boiler Upgrade Scheme (MCS-certified install required)
MCS certificate no.KM 612798/12
MCS listingView on MCS ↗

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Ground source (brine/water) heat pump, single-phase electricity supply up to 18kW, variable-speed high-efficiency Grundfos pump for heating & brine circuits, electronic expansion valve, high-flow heat exchangers, flow temperature up to 60C, installation accessories (flexible hoses, filters, 3-port diverting valve) included as standard

Where to buy (UK)

UK SupplierPlumbnation
UK SupplierInspired Heating
UK SupplierWolseley
UK SupplierCity Plumbing
UK SupplierHVAC-Sanitary

✓ 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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