Bo
Bosch
Trusted German brand expanding into heat pumps
BUS Grant: £7,500BUS EligibleMCS Approved
7.9
Overall score
out of 10
Bosch is a solid choice for UK homeowners. From Germany, founded 1886. Heat output range: 5 kW - 17 kW. SCOP: Up to 4.2. Noise: 40-50 dB.
Key specifications
OriginGermany
Founded1886
Heat output5 kW - 17 kW
Max SCOPUp to 4.2
Noise level40-50 dB
Warranty5 years
Score breakdown
Efficiency (SCOP)
8
Reliability
8.2
Installation
8.8
After-sales support
8.5
Value for money
8
Post-grant installed price
£3,800 - £8,000
After £7,500 BUS grant. Includes installation.
+Pros
- Highly trusted German brand with global recognition
- Compress 3400i widely available through established dealer network
- Easy integration with Bosch smart home ecosystem
- Competitive installer availability across the UK
- Good parts availability and service support
-Cons
- SCOP ratings mid-tier — not as efficient as Daikin or Stiebel Eltron
- Heat pump range newer and less proven than boiler range
- Not all Bosch boiler engineers are heat pump trained
Best for
Existing Bosch heating system ownersNew builds with smart home integrationBuyers wanting wide dealer choice
Not ideal for
Maximum efficiency seekersVery large rural properties
Top models
| Model | Heat output | SCOP | Approx. installed price |
|---|---|---|---|
| Compress 3400i 5kW | 5 kW | 4.2 | £4,200-6,500 installed |
| Compress 3400i 8kW | 8 kW | 4.0 | £5,800-8,000 installed |
| Compress 3400i 17kW | 17 kW | 3.8 | £8,000-11,500 installed |
Prices shown include installation and are after the £7,500 BUS grant where applicable. Correct as of April 2026.
Bosch heat pump - common questions
Get quotes for a Bosch heat pump
Compare MCS-certified installer quotes in your area. Free, no obligation.
Compare with other brands
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.