Panasonic Aquarea T-CAP J Series (12 kW)

Specifications and technical data

Air Source (ASHP)ResidentialR3212 kW

Manufacturer	Panasonic
Model	Aquarea T-CAP J Series
Model code	WH-MXC12J9E8
Heat pump type	Air Source (ASHP)
Application	Residential
Refrigerant	R32
Mode	Heating & cooling
Heating capacity	12 kW
Max heating output (low temp)	12 kW at A-7/W35
COP (heating)	4.8 at A7/W35
SCOP (heating)	4.96 at W35
Operating range (air)	-20 to 35 °C
Heating flow temperature	20–65 °C
Electrical supply	380-415V (Three Phase)
Cooling capacity	12 kW
Cooling flow temperature	5–20 °C
EER (cooling)	2.84 at A35/W7
Dimensions (H×W×D)	1410 × 1283 × 320 mm
Operational Weight	140 kg
Sound power level	61 dB(A) (Sound Power LW(A))
Price (unit only)	~£4180.26 (checked 2026-08-15)
Data added	2026-07-10
Data source	Manufacturer Data Sheet; Price: UK Retailer Pricing (The Heat Pump Warehouse £4,180.26 ex VAT, SKU KIT-MXC12J6E5), ex VAT shown. Heat pump unit only (monobloc, no cylinder). Listed as a single 'from' price covering both 1-phase and 3-phase wiring options.
MCS certification	✓ MCS listed — eligible for Boiler Upgrade Scheme (MCS-certified install required)
MCS certificate no.	011-1W0463_05
MCS listing	View on MCS ↗

View manufacturer page →

Panasonic Aquarea T-CAP J Series is a 12.0 kW air source heat pump, providing heating and cooling, using R32 refrigerant (model WH-MXC12J9E8).

Where to buy (UK)

UK Supplier	The Heat Pump Warehouse
UK Supplier	Secon Renewables
UK Supplier	OceanAir

✓ 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.

Reviews & further reading

Review Panasonic Aquarea - Air Source Heat Pump - Installer Perspectives — Air2Heat 2024-09
UK installer's hands-on perspective across the J and L Series T-CAP range.