Nibe S1155
Specifications and technical data
✓ BUS eligibleGround Source (GSHP)CommercialR410A6–25 kW
| Manufacturer | Nibe |
|---|---|
| Model | S1155 |
| Model code | S1155-25 |
| Heat pump type | Ground Source (GSHP) All Ground Source heat pumps → |
| Application | Commercial All Commercial heat pumps → |
| Refrigerant | R410A All R410A heat pumps → |
| Mode | Heating only |
| Heating capacity | 6–25 kW |
| Max heating output (low temp) | 12.68 kW at W0/W35 |
| COP (heating) | 4.68 at B0/W35 |
| SCOP (heating) | 5.2 at W55 |
| Operating range (air) | -12 to 30 °C |
| Heating flow temperature | 20–65 °C |
| Power input | 2.71 kW |
| Electrical supply | Not stated |
| Dimensions (H×W×D) | 1500 × 600 × 620 mm |
| Operational Weight | 205 kg |
| Sound power level | 47 dB(A) (Sound Power LW(A)) |
| Data added | 2026-07-01 |
| 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. | 012-C700074 |
| MCS certification | ✓ MCS listed |
| MCS certificate no. | 012-C700074 |
| MCS listing | View on MCS ↗ |
Nibe S1155 is a 25 kW ground source heat pump, using R410A refrigerant.
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.
TERRA 27 HPLA
Ochsner · 265070V0004
- Capacity
- 24.45 kW
- SCOP
- 4.72 (W35)
- Sound power
- 52 dB(A)
- Refrigerant
- R410A
SW
Alpha Innotec · SW 262H3
- Capacity
- 25.6 kW
- COP
- 4.92 (B0/W35)
- Sound power
- 50 dB(A)
- Refrigerant
- R410A
SI
Dimplex · SI 26TU
- Capacity
- 26.7 kW
- COP
- 5.1 (B0/W35)
- Sound power
- 57 dB(A)
- Refrigerant
- R410A
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WZS
GSHP · 4.7 kW · BUS eligible
WZS
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