AS Thermal R290 Mono Heat Pump (14.3 kW)

Specifications and technical data

Also known as: AMH-14R2B3

✓ BUS eligibleAir Source (ASHP)ResidentialR29014.3 kW

Manufacturer	AS Thermal
Model	R290 Mono Heat Pump
Model code	AMH-14R2
Heat pump type	Air Source (ASHP) All Air Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R290 All R290 heat pumps →
Mode	Heating & cooling
Heating capacity	14.3 kW
Max heating output (low temp)	14.1 kW at A7/W55
COP (heating)	4.65 at A7/W35
Operating range (air)	-26 to 35 °C
Heating flow temperature	20–75 °C
Electrical supply	220-240V (Single Phase)
Cooling capacity	13.3 kW
Max cooling output (high temp)	14.2 kW at A35/W18
Cooling flow temperature	5–25 °C
EER (cooling)	2.99 at A35/W7
Dimensions (H×W×D)	950 × 1155 × 500 mm
Operational Weight	139 kg
Sound power level	64 dB(A) (Sound Power LW(A))
Data added	2026-08-30
Data source	Manufacturer website
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.	011-1W1022_3
MCS certification	✓ MCS listed
MCS certificate no.	011-1W1022_3

Free data sheet (PDF) →

Check noise at a neighbour’s window (MCS 020 a) →

View manufacturer page →

AS Thermal AMH-14R2 air-to-water heat pump, R290 monobloc unit. 14.1 kW heating at A7/W35 with a COP of 4.65. DC inverter compressor, single-phase. Flow temperature to 75 C, operation to -26 C ambient. Pairs with the AMHTB-240R2T60 all-in-one indoor unit with a 240 L cylinder.

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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.