Heliotherm Groundwater Heat Pump (7.4–19.9 kW)

Specifications and technical data

✓ BUS eligibleGround Source (GSHP)ResidentialR2907.4–19.9 kW

Manufacturer	Heliotherm
Model	Groundwater Heat Pump
Model code	HP12S16W-M-BC
Heat pump type	Ground Source (GSHP) All Ground Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R290 All R290 heat pumps →
Mode	Heating & cooling
Heating capacity	7.4–19.9 kW
Max heating output (low temp)	16.2 kW at W10/W35
COP (heating)	6.8 at W10/W35
Operating range (air)	7 to 14 °C
Heating flow temperature	up to 65 °C
Cooling capacity	12.2 kW
Max cooling output (high temp)	12 kW at W10/W7
Dimensions (H×W×D)	1700 × 600 × 670 mm
Operational Weight	231 kg
Sound power level	43 dB(A) (Sound Power LW(A))
Data added	2026-07-13
Data source	Manufacturer Data Sheet
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.	BBA 0136/24
MCS certification	✓ MCS listed
MCS listing	View on MCS ↗

Free data sheet (PDF) →

View manufacturer page →

Heliotherm HP12S16W-M-BC is a 19.9 kW ground source heat pump, providing heating and cooling, using Not stated refrigerant.

✎ Suggest a correction to this data

Data is compiled from manufacturer sources and may contain errors or gaps. Always confirm specifications with the manufacturer before making decisions.