Dimplex SIH high temperature

Specifications and technical data

Also known as: SIH 40 TE

✓ BUS eligibleGround Source (GSHP)ResidentialR134a18.6–36.6 kW

Manufacturer	Dimplex
Model	SIH high temperature
Model code	SIH 40TE
Heat pump type	Ground Source (GSHP) All Ground Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R134a All R134a heat pumps →
Mode	Heating only
Heating capacity	18.6–36.6 kW
Max heating output (low temp)	33.1 kW at B0/W50
COP (heating)	4.4 at B0/W35
Operating range (air)	-5 to 25 °C
Heating flow temperature	up to 70 °C
Electrical supply	380-415V (Three Phase)
Dimensions (H×W×D)	1890 × 1350 × 775 mm
Operational Weight	502 kg
Sound power level	65 dB(A) (Sound Power LW(A))
Data added	2026-09-23
Data source	Manufacturer documentation (Dimplex)
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.	MCS HP0017/16

Free data sheet (PDF) →

Dimplex SIH 40TE high-temperature brine-to-water ground source heat pump for indoor installation, two compressors with economiser, R134a. 36.6 kW at B0/W35 on both compressors with a COP of 4.40, or 18.6 kW on one. Flow to 70 C, brine from -5 to 25 C. Three-phase.

✎ 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.