Vaillant aroTHERM pro (6.55 kW)

Specifications and technical data

Also known as: 8000022167

✓ BUS eligibleAir Source (ASHP)ResidentialR2906.55 kW

Manufacturer	Vaillant
Model	aroTHERM pro
Model code	VWL 55/7.1 A 230V S2
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 only
Heating capacity	6.55 kW
Max heating output (low temp)	4.84 kW at A-7/W35
COP (heating)	4.93 at A7/W35
Operating range (air)	-25 to 43 °C
Heating flow temperature	10–70 °C
Electrical supply	220-240V (Single Phase)
Dimensions (H×W×D)	750 × 1104 × 454 mm
Operational Weight	84.5 kg
Sound power level	49 dB(A) (Sound Power LW(A))
Price (unit only)	~£3,592.80 (checked 2026-09-30)
Data added	2026-10-04
Data source	Vaillant aroTHERM pro installation and maintenance instructions 8000026885_02
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.	011-1W1212_01

Free data sheet (PDF) →

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

Vaillant aroTHERM pro 5 kW air-to-water monobloc heat pump using natural R290 refrigerant, flow temperatures up to 70 °C and operation down to -25 °C. Rotary compressor, single-phase 230 V supply.

Where to buy (UK)

UK Supplier	The Heat Pump Warehouse
UK Supplier	Secon Renewables
UK Supplier	City Plumbing
UK Supplier	Pirate Heating Supplies
UK Supplier	Eco Wizard

✎ 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.