Vaillant flexoTHERM (8.89 kW)
Specifications and technical data
Ground Source (GSHP)ResidentialR410A8.89 kW
| Manufacturer | Vaillant |
|---|---|
| Model | flexoTHERM |
| Model code | flexoTHERM 8 400V |
| Heat pump type | Ground Source (GSHP) |
| Application | Residential |
| Refrigerant | R410A |
| Mode | Heating only |
| Heating capacity | 8.89 kW |
| Max heating output (low temp) | 8.76 kW at B0/W35 |
| COP (heating) | 5.62 at B0/W35 |
| SCOP (heating) | 5.34 at W35 |
| Operating range (air) | -10 to 25 °C |
| Heating flow temperature | 25–65 °C |
| Electrical supply | 380-415V (Three Phase) |
| Dimensions (H×W×D) | 1183 × 595 × 600 mm |
| Operational Weight | 167 kg |
| Sound power level | 45.6 dB(A) (Sound Power LW(A)) |
| Data added | 2026-07-02 |
| Data source | Manufacturer Data Sheet |
Vaillant flexoTHERM is a 8 kW ground source heat pump, using R410A refrigerant (model flexoTHERM 8 400V).
Where to buy (UK)
| UK Supplier | The Heat Pump Warehouse |
|---|---|
| UK Supplier | Secon Renewables |
| UK Supplier | City Plumbing |
| UK Supplier | Pirate Heating Supplies |
| UK Supplier | Eco Wizard |
✓ Manually verified by Heat Pump Database
✎ 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
- Review Vaillant flexoTHERM 400V + aroCOLLECT Air Source Heat Pump Review — Federation of Master Builders
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