Worcester Bosch
The UK's favourite boiler brand enters heat pumps
Worcester Bosch is a solid choice for UK homeowners. From Germany/UK, founded 1962. Heat output range: 5 kW - 12 kW. SCOP: Up to 3.9. Noise: 40-50 dB.
Key specifications
Score breakdown
+Pros
- Largest UK installer network of any brand
- Familiar interface for existing WB customers
- 7-year warranty - best in class
- Strong parts availability
- Trusted UK brand recognition
-Cons
- Heat pump newer product, less track record than boilers
- SCOP slightly lower than Mitsubishi or Daikin
- Not all WB boiler installers are heat pump trained
Best for
Not ideal for
Top models
| Model | Heat output | SCOP | Approx. installed price |
|---|---|---|---|
| Greenstar Heat Pump 5kW | 5 kW | 3.9 | £4,000-6,500 installed |
| Greenstar Heat Pump 8kW | 8 kW | 3.8 | £5,500-8,000 installed |
| Greenstar Heat Pump 12kW | 12 kW | 3.7 | £7,000-10,000 installed |
Prices shown include installation and are after the £7,500 BUS grant where applicable. Correct as of April 2026.
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Important disclaimer
heatpumpcompared.co.uk is editorially independent and not affiliated with any heat pump manufacturer or installer. We do not provide heating advice. Prices, specifications, SCOP ratings and grant amounts are correct as of April 2026 but are subject to change. Always commission a professional heat loss survey before purchasing a heat pump system.