Baxi Boiler Replacement & Installation
Find the Right Baxi Boiler for Your Home
Baxi boilers are a well-known choice in the UK, offering efficient heating, dependable performance and a wide range of models to suit different home sizes and hot water needs. Whether you’re replacing an older unit or upgrading to a modern combi or system boiler, Baxi has options designed for everyday reliability and strong running-cost efficiency.
On this page you can compare Baxi boiler models with clear key details, helping you choose the right solution for your property. If you’re unsure what type you need, a good starting point is your current set-up (combi, system or regular) and how many bathrooms you have — we’ll help point you towards a suitable Baxi boiler and a straightforward installation route.
Recommended Boilers
415 Heat
- Regular Gas Boiler
- 15kW
- Band rating: A
- ERP rating: A
- Warranty: 5 years
418 Heat
- Regular Gas Boiler
- 18kW
- Band rating: A
- ERP rating: A
- Warranty: 5 years
424
- Combi Gas Boiler
- 21.8kW
- Band rating: A
- ERP rating: A
- Warranty: 5 years
424 Heat
- Regular Gas Boiler
- 24kW
- Band rating: A
- ERP rating: A
- Warranty: 5 years
430
- Combi Gas Boiler
- 21.8kW
- Band rating: A
- ERP rating: A
- Warranty: 5 years
615
- System Gas Boiler
- 15kW
- Band rating: A
- ERP rating: A
- Warranty: 7 years
616
- Regular Gas Boiler
- 16kW
- Band rating: A
- ERP rating: A
- Warranty: 7 years
618
- System Gas Boiler
- 18kW
- Band rating: A
- ERP rating: A
- Warranty: 7 years
619
- Regular Gas Boiler
- 19kW
- Band rating: A
- ERP rating: A
- Warranty: 7 years
624
- System Gas Boiler
- 24kW
- Band rating: A
- ERP rating: A
- Warranty: 7 years
624
- Combi Gas Boiler
- 21.2kW
- Band rating: A
- ERP rating: A
- Warranty: 7 years
625
- Regular Gas Boiler
- 25kW
- Band rating: A
- ERP rating: A
- Warranty: 7 years
630
- Combi Gas Boiler
- 30kW
- Band rating: A
- ERP rating: A
- Warranty: 7 years
636
- Combi Gas Boiler
- 26.4kW
- Band rating: A
- ERP rating: A
- Warranty: 7 years
816
- Regular Gas Boiler
- 16kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
818
- System Gas Boiler
- 18kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
824
- System Gas Boiler
- 24kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
824 24KW
- Combi Gas Boiler
- 24kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
825 Heat 25KW
- Regular Gas Boiler
- 25kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
830
- System Gas Boiler
- 30kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
830 30KW
- Combi Gas Boiler
- 30kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
830 Heat 30KW
- Regular Gas Boiler
- 30kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
836
- Combi Gas Boiler
- 36kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
Other Boilers
124
- Combi Gas Boiler
- 24kW
- Band rating: B
- ERP rating: A
128
- Combi Gas Boiler
- 28kW
- Band rating: B
- ERP rating: A
212 Heat 12KW
- Regular Gas Boiler
- 12kW
- Band rating: A
- ERP rating: A
215 Heat 15KW
- Regular Gas Boiler
- 15kW
- Band rating: A
- ERP rating: A
218 Heat 18KW
- Regular Gas Boiler
- 18kW
- Band rating: A
- ERP rating: A
224
- Combi Gas Boiler
- 21.8kW
- Band rating: A
- ERP rating: A
224 Combi 2 24KW Gas Boiler
- Combi Gas Boiler
- 21.8kW
- Band rating: A
- ERP rating: A
224 Heat 24KW
- Regular Gas Boiler
- 24kW
- Band rating: A
- ERP rating: A
228
- Combi Gas Boiler
- 21.8kW
- Band rating: A
- ERP rating: A
228 Combi 2 28KW Gas Boiler
- Combi Gas Boiler
- 21.8kW
- Band rating: A
- ERP rating: A
230 Heat 30KW
- Regular Gas Boiler
- 30kW
- Band rating: A
- ERP rating: A
412 Heat 12KW
- Regular Gas Boiler
- 12kW
- Band rating: A
- ERP rating: A
424 Combi 2 24KW Gas Boiler
- Combi Gas Boiler
- 21.8kW
- Band rating: A
- ERP rating: A
428
- Combi Gas Boiler
- 21.8kW
- Band rating: A
- ERP rating: A
430 Heat 30KW
- Regular Gas Boiler
- 30kW
- Band rating: A
- ERP rating: A
613
- Regular Gas Boiler
- 13kW
- Band rating: A
- ERP rating: A
- Warranty: 7 years
630 Heat
- Regular Gas Boiler
- 30kW
- Band rating: A
- ERP rating: A
- Warranty: 7 years
816 Heat 16KW
- Regular Gas Boiler
- 16kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
824 24KW
- System Gas Boiler
- 24kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
825
- Combi Gas Boiler
- 21.2kW
- Band rating: A
- ERP rating: A
- Warranty: 10 years
Combi 105 He 30KW Gas Boiler
- Combi Gas Boiler
- 30kW
- Band rating: B
- ERP rating: A
Duo Tec Combi 24 Gas Boiler
- Combi Gas Boiler
- 21kW
- Band rating: A
- ERP rating: A
Duo Tec Combi 28 Gas Boiler
- Combi Gas Boiler
- 25.9kW
- Band rating: A
- ERP rating: A
Duo Tec Combi 28 Lpg Gas Boiler
- Combi Gas Boiler
- 25.9kW
- Band rating: A
- ERP rating: A
Duo Tec Combi 33 Gas Boiler
- Combi Gas Boiler
- 30.3kW
- Band rating: A
- ERP rating: A
Duo Tec Combi 40 Gas Boiler
- Combi Gas Boiler
- 34.4kW
- Band rating: A
- ERP rating: A
Ecoblue Advance Combi 24 Gas Boiler
- Combi Gas Boiler
- 21.2kW
- Band rating: A
- ERP rating: A
Ecoblue Advance Combi 28 Gas Boiler
- Combi Gas Boiler
- 25.3kW
- Band rating: A
- ERP rating: A
Ecoblue Advance Combi 33 Gas Boiler
- Combi Gas Boiler
- 29.6kW
- Band rating: A
- ERP rating: A
Ecoblue Advance Combi 40 Gas Boiler
- Combi Gas Boiler
- 33.9kW
- Band rating: A
- ERP rating: A
Ecoblue Advance Heat 13
- Regular Gas Boiler
- 13kW
- Band rating: B
- ERP rating: A
Ecoblue Advance Heat 16
- Regular Gas Boiler
- 16kW
- Band rating: B
- ERP rating: A
Ecoblue Advance Heat 19
- Regular Gas Boiler
- 19kW
- Band rating: B
- ERP rating: A
Ecoblue Advance Heat 25
- Regular Gas Boiler
- 25kW
- Band rating: B
- ERP rating: A
Ecoblue Advance Heat 30
- Regular Gas Boiler
- 30kW
- Band rating: B
- ERP rating: A
Ecoblue Heat 12
- Regular Gas Boiler
- 12kW
- Band rating: B
- ERP rating: A
Ecoblue Heat 15
- Regular Gas Boiler
- 15kW
- Band rating: B
- ERP rating: A
Ecoblue Heat 18
- Regular Gas Boiler
- 18kW
- Band rating: B
- ERP rating: A
Ecoblue Heat 21
- Regular Gas Boiler
- 21kW
- Band rating: B
- ERP rating: A
Ecoblue Heat 24
- Regular Gas Boiler
- 24kW
- Band rating: B
- ERP rating: A
Ecoblue System 12 Gas Boiler
- System Gas Boiler
- 12kW
- Band rating: B
- ERP rating: A
Ecoblue System 15 Gas Boiler
- System Gas Boiler
- 15kW
- Band rating: B
- ERP rating: A
Ecoblue System 18 Gas Boiler
- System Gas Boiler
- 18kW
- Band rating: B
- ERP rating: A
Ecoblue System 24 Gas Boiler
- System Gas Boiler
- 24kW
- Band rating: B
- ERP rating: A
Ecoblue System 28 Gas Boiler
- System Gas Boiler
- 28kW
- Band rating: B
- ERP rating: A
Ecoblue System 32 Gas Boiler
- System Gas Boiler
- 32kW
- Band rating: B
- ERP rating: A
Ecoblue+ Combi 24 Gas Boiler
- Combi Gas Boiler
- 24kW
- Band rating: B
- ERP rating: A
Ecoblue+ Combi 28 Gas Boiler
- Combi Gas Boiler
- 28kW
- Band rating: B
- ERP rating: A
Ecoblue+ Combi 33 Gas Boiler
- Combi Gas Boiler
- 33kW
- Band rating: B
- ERP rating: A
Megaflo System 15 Gas Boiler
- System Gas Boiler
- 15kW
- Band rating: A
- ERP rating: A
Megaflo System 18 Gas Boiler
- System Gas Boiler
- 18kW
- Band rating: A
- ERP rating: A
Megaflo System 24 Gas Boiler
- System Gas Boiler
- 24kW
- Band rating: A
- ERP rating: A
Megaflo System 28 Gas Boiler
- System Gas Boiler
- 28kW
- Band rating: A
- ERP rating: A
Megaflo System 32 Gas Boiler
- System Gas Boiler
- 32kW
- Band rating: A
- ERP rating: A
Neta Tec Combi 33 Ga Gas Boiler
- Combi Gas Boiler
- 33kW
- Band rating: B
- ERP rating: A
Platinum Combi 24 Gas Boiler
- Combi Gas Boiler
- 24kW
- Band rating: A
- ERP rating: A
Platinum Combi 28 Gas Boiler
- Combi Gas Boiler
- 24kW
- Band rating: A
- ERP rating: A
Platinum Combi 33 Gas Boiler
- Combi Gas Boiler
- 28kW
- Band rating: A
- ERP rating: A
Platinum Combi 40 Gas Boiler
- Combi Gas Boiler
- 32kW
- Band rating: A
- ERP rating: A
Platinum+ 32KW
- System Gas Boiler
- 32kW
- Band rating: A
- ERP rating: A
Platinum+ 40KW
- Combi Gas Boiler
- 34.4kW
- Band rating: A
- ERP rating: A
Solo 15 He A
- Regular Gas Boiler
- 15kW
- Band rating: B
- ERP rating: A