Stiebel Eltron WPE-I HW GB Premium Pack (2.1–14.8 kW)

Specifications and technical data

✓ BUS eligibleGround Source (GSHP)ResidentialR454C2.1–14.8 kW

Manufacturer	Stiebel Eltron
Model	WPE-I HW GB Premium Pack
Model code	WPE-I 15 HW 230 GB Premium
Heat pump type	Ground Source (GSHP) All Ground Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R454C All R454C heat pumps →
Mode	Heating only
Heating capacity	2.1–14.8 kW
Max heating output (low temp)	5.18 kW at B0/W35
COP (heating)	4.86 at B0/W35
SCOP (heating)	5.44 at W35
Heating flow temperature	up to 75 °C
Electrical supply	220-240V (Single Phase)
Dimensions (H×W×D)	1937 × 600 × 703 mm
Operational Weight	275 kg
Sound power level	49 dB(A) (Sound Power LW(A))
Data added	2026-10-21
Data source	Stiebel Eltron WPE-I HW 230 GB Premium Pack technical datasheet
Verification	Verified by a human
Boiler Upgrade Scheme	✓ BUS eligible — Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026). Grant also needs an MCS-certified installer and a qualifying system design. Funding guide
PEL certificate no.	011-1W0395_04
MCS certification	✓ MCS listed
MCS certificate no.	011-1W0395_04

Free data sheet (PDF) →

Stiebel Eltron WPE-I 15 HW 230 GB Premium inverter ground source heat pump pack with integrated 162 L DHW cylinder, 2.1-14.8 kW at B0/W35, R454C, single-phase.

Where to buy (UK)

UK Supplier	Midsummer Wholesale
UK Supplier	Heat Pump Central

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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.