Nibe F1253 (1.5–4.3 kW)
Specifications and technical data
✓ BUS eligibleGround Source (GSHP)ResidentialR407C1.5–4.3 kW
| Manufacturer | Nibe |
|---|---|
| Model | F1253 |
| Model code | NIBE F1253-4 R 1x230 UK |
| Heat pump type | Ground Source (GSHP) All Ground Source heat pumps → |
| Application | Residential All Residential heat pumps → |
| Refrigerant | R407C All R407C heat pumps → |
| Mode | Heating only |
| Heating capacity | 1.5–4.3 kW |
| Max heating output (low temp) | 3.15 kW at B0/W35 |
| COP (heating) | 4.72 at B0/W35 |
| SCOP (heating) | 5.2 at W35 |
| Heating flow temperature | up to 70 °C |
| Electrical supply | 220-240V (Single Phase) |
| Dimensions (H×W×D) | 1800 × 600 × 620 mm |
| Operational Weight | 200 kg |
| Sound power level | 42 dB(A) (Sound Power LW(A)) |
| Data added | 2026-10-20 |
| Data source | NIBE F1253 installation manual IHB EN 2436-1 831654 |
| 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. | 012-C700130 issue 1 |
| MCS certification | ✓ MCS listed |
| MCS certificate no. | 012-C700130 issue 1 |
NIBE F1253-4 inverter ground source heat pump with integrated 180 L hot water heater, 1.5-4 kW, R407C, single-phase 230 V (UK).
Where to buy (UK)
| UK Supplier | Baxter Heat Pumps |
|---|---|
| UK Supplier | IMS Heat Pumps |
✎ 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.
Alternatives to consider
Three Ground Source (GSHP) heat pumps from other manufacturers closest in capacity to this one.
Legend
Thermia · Legend 4
- Capacity
- 4.71 kW
- SCOP
- 5.1 (W35)
- Sound power
- 40 dB(A)
- Refrigerant
- R452B
WZS
Alpha Innotec · WZS 42(H)(K)3M
- Capacity
- 4.7 kW
- COP
- 4.7 (B0/W35)
- Sound power
- 43 dB(A)
- Refrigerant
- R410A
AquaMaster Inverter AQ17IP
MasterTherm · 1AQ17I-0
- Capacity
- 1–5 kW
- SCOP
- 4.58 (W35)
- Sound power
- 49 dB(A)
- Refrigerant
- R410A
- Price
- ~£8,287.20
More from Nibe
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S2125
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Other Ground Source (GSHP) heat pumps
WZSV
GSHP · 0.77–6 kW
WZSV
GSHP · 3.32 kW · BUS eligible
WZSV
GSHP · 4 kW · BUS eligible
WZSV
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WZS
GSHP · 4.7 kW · BUS eligible
WZS
GSHP · 7.7 kW
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