heatpumpdatabaseProduct data sheetheatpumpdatabase.com
Toshiba Estia R32
Model code: HWT-401HW-E
✓ BUS eligible✓ MCS listedAir Source (ASHP)ResidentialHeating & cooling
Heating capacity
0.79–7.25 kW
SCOP
4.53
W35
COP
5.2
A7/W35
Max flow temp
55°C
Sound power
66 dB(A)
Refrigerant
R32
Boiler Upgrade Scheme
✓ BUS eligible
Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026).
PEL certificate: 011-1W0467_02
Grant also needs an MCS-certified installer and a qualifying system design.
MCS certification
✓ MCS listed
Certificate: 011-1W0467_02
| General | |
|---|---|
| Heat pump type | Air Source (ASHP) |
| Application | Residential |
| Refrigerant | R32 |
| Mode | Heating & cooling |
| Heating performance | |
| Heating capacity | 0.79–7.25 kW |
| Max heating output (low temp) | 6.42 kW at A2/W35 |
| COP (heating) | 5.2 at A7/W35 |
| SCOP (heating) | 4.53 at W35 |
| Operating range (air) | -20 to 25 °C |
| Heating flow temperature | 20–55 °C |
| Cooling performance | |
| Cooling capacity | 4 kW |
| Max cooling output (high temp) | 4 kW at A35/W7 |
| EER (cooling) | 3.45 at A35/W7 |
| Cooling flow temperature | 7–25 °C |
| Electrical, acoustic and physical | |
| Electrical supply | 220-240V (Single Phase) |
| Sound power level | 66 dB(A) (Sound Power LW(A)) |
| Dimensions (H×W×D) | 630 × 800 × 300 mm |
| Operational Weight | 42 kg |
Test conditions: A = outdoor air °C, W = flow water °C (e.g. A7/W35 = 7°C air, 35°C flow). Compare COP and SCOP only at the same conditions.