Grant Aerona 290 (1.25–4.36 kW)
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Grant Aerona 290 (1.25–4.36 kW)

Specifications and technical data

✓ BUS eligibleAir Source (ASHP)ResidentialR2901.25–4.36 kW
ManufacturerGrant
ModelAerona 290
Model codeHPR2904
Heat pump typeAir Source (ASHP) All Air Source heat pumps →
ApplicationResidential All Residential heat pumps →
RefrigerantR290 All R290 heat pumps →
ModeHeating only
Heating capacity1.25–4.36 kW
Max heating output (low temp)4.1 kW at A-5/W55
COP (heating)4.99 at A7/W35
SCOP (heating)5 at W35
Operating range (air)-25 to 35 °C
Heating flow temperatureup to 75 °C
Electrical supply220-240V (Single Phase)
Dimensions (H×W×D)803 × 1155 × 422 mm
Operational Weight99 kg
Sound power level48 dB(A) (Sound Power LW(A))
Price (unit only)£2,350–£4,294.91 (checked 28/08/2026)
Data added2026-06-25
Data sourceManufacturer Data Sheet
VerificationVerified 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.MCS HP0265/01
MCS certification✓ MCS listed
MCS certificate no.MCS HP0265/01
MCS listingView on MCS ↗
Real-world performance dataView on HeatpumpMonitor.org ↗

Free data sheet (PDF) →

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

View manufacturer page →

Grant Aerona 290 is a 4.09 kW air source heat pump, using R290 refrigerant.

Where to buy (UK)

UK SupplierSecon Renewables
UK SupplierBHL
UK SupplierPirate Heating Supplies
UK SupplierThe Underfloor Heating Store
UK SupplierPlumbing Superstore

✎ 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.

Reviews & further reading

►Meet the new Grant Aerona R290 air source heat pumpGrant Engineering►Grant Aerona Smart Controller - Setting up the controllerGrant Engineering (UK) L►Grant Aerona- Adjusting the Heat Curve #grant #heatpump #heatcurve #aeronai85: Heat Pumps & Contro►Grant Aerona Smart Controller / GI Dev User GuideGI Developments Ltd ►Grant Aerona - Fixed Flow temperature OR Weather Compensation? #grant #heatpump #aeronai85: Heat Pumps & Contro

Alternatives to consider

Three Air Source (ASHP) heat pumps from other manufacturers closest in capacity to this one.

Midea logo
M Thermal R290
Midea · MHC-V4W/D2N7
Capacity
4.4 kW
SCOP
5.07 (W35)
Sound power
56 dB(A)
Refrigerant
R290
Price
~£2,671
Ideal Heating logo
HP290 4.5kW
Ideal Heating · 241486
Capacity
4.6 kW
SCOP
5.07 (W35)
Sound power
56 dB(A)
Refrigerant
R290
Price
£2,300–£2,878.99
Daikin logo
Altherma 3 R F
Daikin · EHVH04S18E6V + ERGA04EV
Capacity
4.6 kW
SCOP
4.48 (W35)
Sound power
58 dB(A)
Refrigerant
R32

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The Grant name and logo are trademarks of their respective owner and are used here for identification purposes only.