MasterTherm BoxAir Inverter P (12–50 kW)

Specifications and technical data

Air Source (ASHP)CommercialR29012–50 kW

Manufacturer	MasterTherm
Model	BoxAir Inverter P
Model code	BA90IP-311U
Heat pump type	Air Source (ASHP)
Application	Commercial
Refrigerant	R290
Mode	Heating only
Heating capacity	12–50 kW
Max heating output (low temp)	50 kW at A7/W35
SCOP (heating)	4.68 at W35
Operating range (air)	-20 to 40 °C
Heating flow temperature	up to 75 °C
Electrical supply	380-415V (Three Phase)
Dimensions (H×W×D)	1525 × 2060 × 168 mm
Sound power level	50 dB(A) (Sound Power LW(A))
Price (unit only)	~£26472.8 (checked 2026-07-18 00:00:00)
Data added	2026-06-28
Data source	Manufacturer Data Sheet; Price: UK Retailer Pricing (thermalearth.co.uk), ex VAT shown
MCS certification	✓ MCS listed — eligible for Boiler Upgrade Scheme (MCS-certified install required)
MCS listing	View on MCS ↗

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MasterTherm BoxAir Inverter P is a 50 kW air source heat pump, providing heating and cooling, using R290 refrigerant.

✓ 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.