heatpumpdatabaseProduct data sheetheatpumpdatabase.com
Toshiba ESTIA R32 8 kW 3-phase (Hydrobox Compact)
Model code: HWT-801H8W-E
✓ BUS eligible✓ MCS listedAir Source (ASHP)ResidentialHeating & cooling
Heating capacity
2.65–12.27 kW
SCOP
4.51
W35
COP
5.06
A7/W35
Max flow temp
65°C
Sound power
65 dB(A)
Refrigerant
R32
Boiler Upgrade Scheme
✓ BUS eligible
Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026).
PEL certificate: 011-1W0608_02; 011-1W0608_03; 011-1W0608_04
Grant also needs an MCS-certified installer and a qualifying system design.
MCS certification
✓ MCS listed
Certificate: 011-1W0608_02; 011-1W0608_03; 011-1W0608_04
| General | |
|---|---|
| Heat pump type | Air Source (ASHP) |
| Application | Residential |
| Refrigerant | R32 |
| Mode | Heating & cooling |
| Heating performance | |
| Heating capacity | 2.65–12.27 kW |
| Max heating output (low temp) | 8.74 kW at A2/W35 |
| COP (heating) | 5.06 at A7/W35 |
| SCOP (heating) | 4.51 at W35 |
| Operating range (air) | -25 to 25 °C |
| Heating flow temperature | 20–65 °C |
| Cooling performance | |
| Cooling capacity | 6 kW |
| Max cooling output (high temp) | 6 kW at A35/W7 |
| EER (cooling) | 2.83 at A35/W7 |
| Cooling flow temperature | 7–25 °C |
| Electrical, acoustic and physical | |
| Electrical supply | 380-415V (Three Phase) |
| Sound power level | 65 dB(A) (Sound Power LW(A)) |
| Dimensions (H×W×D) | 1050 × 1010 × 370 mm |
| Operational Weight | 92 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.