Vi
Viessmann
German engineering excellence since 1917
BUS Grant: £7,500BUS EligibleMCS Approved
8.7
Overall score
out of 10
Viessmann is a excellent choice for UK homeowners. From Germany, founded 1917. Heat output range: 6 kW - 13 kW. SCOP: Up to 4.4. Noise: 40-50 dB.
Key specifications
OriginGermany
Founded1917
Heat output6 kW - 13 kW
Max SCOPUp to 4.4
Noise level40-50 dB
Warranty5 years
Score breakdown
Efficiency (SCOP)
8.8
Reliability
8.9
Installation
7.8
After-sales support
8
Value for money
7.5
Post-grant installed price
£5,000 - £10,000
After £7,500 BUS grant. Premium German specification.
+Pros
- Over 100 years of German heating engineering heritage
- Vitocal range achieves SCOP up to 4.4
- Excellent cold-climate performance
- Seamless integration with existing Viessmann systems
- Vitotronic intelligent controls
-Cons
- Premium pricing — among the most expensive brands
- Requires specialist Viessmann-trained installers
- Smaller UK installer network than Mitsubishi or Worcester Bosch
Best for
Premium retrofit projectsWell-insulated homesExisting Viessmann system owners
Not ideal for
Budget-conscious buyersUrgently needed installs
Top models
| Model | Heat output | SCOP | Approx. installed price |
|---|---|---|---|
| Vitocal 200-A 6kW | 6 kW | 4.4 | £5,500-8,000 installed |
| Vitocal 200-A 8kW | 8 kW | 4.3 | £7,000-9,500 installed |
| Vitocal 200-A 13kW | 13 kW | 4.1 | £9,000-13,000 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
www.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.