Daikin Altherma 3 H HT (ETBX16E6V + EPRA18DV3)

Specifications and technical data

Also known as: EPRA14DV - ETB(H/X)16D6V

✓ BUS eligibleAir Source (ASHP)ResidentialR3212.11 kW

Manufacturer	Daikin
Model	Altherma 3 H HT
Model code	ETBX16E6V + EPRA18DV3
Heat pump type	Air Source (ASHP) All Air Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R32 All R32 heat pumps →
Mode	Heating & cooling
Heating capacity	12.11 kW
Max heating output (low temp)	12.11 kW at A-2/W55
COP (heating)	4.86 at A7/W35
SCOP (heating)	4.57 at W35
Operating range (air)	-28 to 35 °C
Heating flow temperature	18–70 °C
Electrical supply	220-240V (Single Phase)
Cooling capacity	12.46 kW
Max cooling output (high temp)	8.86 kW at A35/W7
Cooling flow temperature	5–25 °C
EER (cooling)	2.68 at A35/W7
Dimensions (H×W×D)	990 × 1270 × 460 mm
Operational Weight	146 kg
Sound power level	54 dB(A) (Sound Power LW(A))
Price (unit only)	~£6,176.35 (checked 2026-08-03)
Data added	2026-07-07T00:00:00
Data source	Manufacturer Data Sheet
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.	011-1W0353_01
MCS certification	✓ MCS listed
MCS certificate no.	EPRA18DV3 / ETBX16E6V
MCS listing	View on MCS ↗

Free data sheet (PDF) →

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

View manufacturer page →

Daikin Altherma 3 H HT ETBX16E6V wall-mounted reversible ASHP with EPRA18DV3 outdoor unit, R32, heating and cooling, down to -28C.

Where to buy (UK)

UK Supplier	The Heat Pump Warehouse
UK Supplier	Space Air
UK Supplier	City Plumbing
UK Supplier	The Underfloor Heating Store

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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.