Not sure which boiler you need?
Not sure which boiler you need?

System Boilers

System boilers are a smart option for homes that need dependable heating and a higher supply of hot water throughout the day. By working with a separate hot water cylinder, they are better suited to households where more than one tap, shower or bathroom may be in use at the same time. With key components built into the unit, system boilers offer a tidy, efficient and powerful heating solution for busy family homes.

System boilers are best suited to medium to large properties, homes with multiple bathrooms and households with greater daily hot water demand. If your home needs more hot water capacity than a combi boiler can usually provide, a system boiler can deliver the performance, convenience and comfort needed for modern family living.

Recommended Boilers

Alpha E Tec 20S
  • System Gas Boiler
  • 26.1kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Alpha E Tec 30S
  • System Gas Boiler
  • 29.7kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Baxi 818 18KW
  • System Gas Boiler
  • 18kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Baxi 824
  • System Gas Boiler
  • 24kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Baxi 830 Heat 30KW
  • System Gas Boiler
  • 30kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Glow Worm Glow Worm Energy System 12KW Gas Boiler
  • System Gas Boiler
  • 12kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 10 years
 Glow Worm Glow Worm Energy System 15KW Gas Boiler
  • System Gas Boiler
  • 15kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 10 years
 Glow Worm Glow Worm Energy System 18KW Gas Boiler
  • System Gas Boiler
  • 18kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 10 years
 Glow Worm Glow Worm Energy System 25KW Gas Boiler
  • System Gas Boiler
  • 25kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 10 years
 Glow Worm Glow Worm Energy System 30KW Gas Boiler
  • System Gas Boiler
  • 30kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 10 years
 Ideal Logic Max S15
  • System Gas Boiler
  • 15kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Logic Max S18
  • System Gas Boiler
  • 18kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Logic Max S24
  • System Gas Boiler
  • 24.2kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Logic Max S30
  • System Gas Boiler
  • 30.3kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Logic Plus System S15 Gas Boiler
  • System Gas Boiler
  • 15kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Logic Plus System S18 Gas Boiler
  • System Gas Boiler
  • 18kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Logic Plus System S24 Gas Boiler
  • System Gas Boiler
  • 24.2kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Logic Plus System S30 Gas Boiler
  • System Gas Boiler
  • 30.3kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Vogue 15KW
  • System Gas Boiler
  • 15kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Vogue 18KW
  • System Gas Boiler
  • 18kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Vogue 26KW
  • System Gas Boiler
  • 26kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Vogue 32KW
  • System Gas Boiler
  • 32kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Vogue Max S15
  • System Gas Boiler
  • 15kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 12 years
 Ideal Vogue Max S18
  • System Gas Boiler
  • 18kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 12 years
 Ideal Vogue Max S26
  • System Gas Boiler
  • 26kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 12 years
 Ideal Vogue Max S32
  • System Gas Boiler
  • 32kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 12 years
 Vaillant Ecofit Pure 612
  • System Gas Boiler
  • 12.3kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecofit Pure 615
  • System Gas Boiler
  • 15.2kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecofit Pure 618
  • System Gas Boiler
  • 18.3kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecofit Pure 625
  • System Gas Boiler
  • 25.4kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecofit Pure 630
  • System Gas Boiler
  • 30.5kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecotec Plus 615
  • System Gas Boiler
  • 15.4kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecotec Plus 630
  • System Gas Boiler
  • 30.4kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Viessmann Vitodens 050 W B0HA 25KW
  • System Gas Boiler
  • 25kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Viessmann Vitodens 100 W B1HC 32 Kw
  • System Gas Boiler
  • 32kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Viessmann Vitodens 100 W B1HF 11 Kw
  • System Gas Boiler
  • 11kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Viessmann Vitodens 100 W B1HF 19KW
  • System Gas Boiler
  • 19kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Viessmann Vitodens 100 W B1HF 25 Kw
  • System Gas Boiler
  • 25kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Worcester Bosch Greenstar 4000 12KW
  • System Gas Boiler
  • 12kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Worcester Bosch Greenstar 4000 15 Kw
  • System Gas Boiler
  • 15kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Worcester Bosch Greenstar 4000 18KW
  • System Gas Boiler
  • 18kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Worcester Bosch Greenstar 4000 21KW
  • System Gas Boiler
  • 21kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Worcester Bosch Greenstar 4000 24KW
  • System Gas Boiler
  • 24kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Worcester Bosch Greenstar 8000+ 30KW
  • System Gas Boiler
  • 30kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 12 years
 Worcester Bosch Greenstar 8000+ 35KW
  • System Gas Boiler
  • 35kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 12 years

Other Boilers

Alpha CD12S
  • System Gas Boiler
  • 12kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 3 years
 Alpha CD20S
  • System Gas Boiler
  • 20kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 3 years
 Alpha CD28S
  • System Gas Boiler
  • 28kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 3 years
 Alpha E Tec 35S
  • System Gas Boiler
  • 35.1kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Alpha Intec 12S
  • System Gas Boiler
  • 13kW
  • Band rating: B
  • Warranty: 3 years
 Alpha Intec 18S
  • System Gas Boiler
  • 20kW
  • Band rating: B
  • Warranty: 3 years
 Alpha Intec 28S
  • System Gas Boiler
  • 30kW
  • Band rating: B
  • Warranty: 3 years
 Alpha INTEC2 20SE
  • System Gas Boiler
  • 20kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 5 years
 Alpha INTEC2 30SE
  • System Gas Boiler
  • 30kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 5 years
 Alpha Protec Plus 115
  • System Gas Boiler
  • 121kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 5 years
 Alpha Protec Plus 50
  • System Gas Boiler
  • 54kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 5 years
 Alpha Protec Plus 70
  • System Gas Boiler
  • 74kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 5 years
 Alpha Protec Plus 90
  • System Gas Boiler
  • 98kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 5 years
 Baxi 615 15KW
  • System Gas Boiler
  • 15kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Baxi 618 18KW
  • System Gas Boiler
  • 18kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Baxi 624 24KW
  • System Gas Boiler
  • 24kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Baxi 824 24KW
  • System Gas Boiler
  • 24kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Baxi Ecoblue System 12 Gas Boiler
  • System Gas Boiler
  • 12kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 7 years
 Baxi Ecoblue System 15 Gas Boiler
  • System Gas Boiler
  • 15kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 7 years
 Baxi Ecoblue System 18 Gas Boiler
  • System Gas Boiler
  • 18kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 7 years
 Baxi Ecoblue System 24 Gas Boiler
  • System Gas Boiler
  • 24kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 7 years
 Baxi Ecoblue System 28 Gas Boiler
  • System Gas Boiler
  • 28kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 7 years
 Baxi Ecoblue System 32 Gas Boiler
  • System Gas Boiler
  • 32kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 7 years
 Baxi Megaflo System 15 Gas Boiler
  • System Gas Boiler
  • 15kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Baxi Megaflo System 18 Gas Boiler
  • System Gas Boiler
  • 18kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Baxi Megaflo System 24 Gas Boiler
  • System Gas Boiler
  • 24kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Baxi Megaflo System 28 Gas Boiler
  • System Gas Boiler
  • 28kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Baxi Megaflo System 32 Gas Boiler
  • System Gas Boiler
  • 32kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Baxi Platinum+ 32KW
  • System Gas Boiler
  • 32kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Glow Worm Glow Worm EASICOM3 25S
  • System Gas Boiler
  • 25kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 3 years
 Glow Worm Glow Worm ULTIMATE2 25KW
  • System Gas Boiler
  • 25kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 5 years
 Glow Worm Glow Worm ULTIMATE3 25KW
  • System Gas Boiler
  • 25kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 5 years
 Ideal Logic System S15 Gas Boiler
  • System Gas Boiler
  • 15kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 2 years
 Ideal Logic System S18 Gas Boiler
  • System Gas Boiler
  • 18kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 2 years
 Ideal Logic System S24 Gas Boiler
  • System Gas Boiler
  • 24.2kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 2 years
 Ideal Logic System S30 Gas Boiler
  • System Gas Boiler
  • 30.3kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 2 years
 Ideal Logic² Max System 15KW Gas Boiler
  • System Gas Boiler
  • 15.9kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Logic² Max System 18KW Gas Boiler
  • System Gas Boiler
  • 19.1kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Logic² Max System 24KW Gas Boiler
  • System Gas Boiler
  • 25.6kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Logic² Max System 30KW Gas Boiler
  • System Gas Boiler
  • 31kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Vogue GEN2 S15
  • System Gas Boiler
  • 15kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Vogue GEN2 S18
  • System Gas Boiler
  • 18kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Vogue GEN2 S26
  • System Gas Boiler
  • 26kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Ideal Vogue GEN2 S32
  • System Gas Boiler
  • 32kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecotec 46KW
  • System Gas Boiler
  • 46kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 2 years
 Vaillant Ecotec 65KW
  • System Gas Boiler
  • 65kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 2 years
 Vaillant Ecotec Exclusive Green Iq 627
  • System Gas Boiler
  • 26.7kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecotec Plus 48KW
  • System Gas Boiler
  • 48kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 5 years
 Vaillant Ecotec Plus 612
  • System Gas Boiler
  • 12.2kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecotec Plus 618
  • System Gas Boiler
  • 18.5kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecotec Plus 624
  • System Gas Boiler
  • 24.4kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecotec Plus 637
  • System Gas Boiler
  • 37.6kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Vaillant Ecotec Plus 64KW
  • System Gas Boiler
  • 64kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 5 years
 Vaillant Home 12KW
  • System Gas Boiler
  • 12kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 2 years
 Vaillant Home 15KW
  • System Gas Boiler
  • 15kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 2 years
 Vaillant Home 18KW
  • System Gas Boiler
  • 18kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 2 years
 Vaillant Home 25KW
  • System Gas Boiler
  • 25kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 2 years
 Viessmann B2HB Vitodens 200 W 19KW
  • System Gas Boiler
  • 19kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 3 years
 Viessmann B2HB Vitodens 200 W 26KW
  • System Gas Boiler
  • 26kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 5 years
 Viessmann B2HB Vitodens 200 W 30KW
  • System Gas Boiler
  • 30kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 3 years
 Viessmann B2HB Vitodens 200 W 35KW
  • System Gas Boiler
  • 35kW
  • Band rating: B
  • ERP rating: A
  • Warranty: 3 years
 Viessmann Vitodens 050 W B0HA 19 Kw
  • System Gas Boiler
  • 19kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Viessmann Vitodens 200 W B2HE 11KW System Boiler
  • System Gas Boiler
  • 11kW
  • Band rating: A
  • ERP rating: A
 Viessmann Vitodens 200 W B2HE 19KW System Boiler
  • System Gas Boiler
  • 19kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Viessmann Vitodens 200 W B2HE 25KW System Boiler
  • System Gas Boiler
  • 25kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 10 years
 Viessmann Vitodens 200 W B2HE 32KW System Boiler
  • System Gas Boiler
  • 32kW
  • Band rating: A
  • ERP rating: A
 Worcester Bosch GB162 100KW
  • System Gas Boiler
  • 99.5kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 2 years
 Worcester Bosch GB162 50KW
  • System Gas Boiler
  • 49.9kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 2 years
 Worcester Bosch GB162 65KW
  • System Gas Boiler
  • 69.5kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 2 years
 Worcester Bosch GB162 85KW
  • System Gas Boiler
  • 84.5kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 2 years
 Worcester Bosch Greenstar 12I
  • System Gas Boiler
  • 12.2kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Worcester Bosch Greenstar 15I
  • System Gas Boiler
  • 15.3kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Worcester Bosch Greenstar 18I
  • System Gas Boiler
  • 18.4kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Worcester Bosch Greenstar 21I
  • System Gas Boiler
  • 21.6kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Worcester Bosch Greenstar 24I
  • System Gas Boiler
  • 24.6kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Worcester Bosch Greenstar 27I
  • System Gas Boiler
  • 27kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Worcester Bosch Greenstar 30CDI Classic
  • System Gas Boiler
  • 30kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Worcester Bosch Greenstar 30I
  • System Gas Boiler
  • 30kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Worcester Bosch Greenstar 35CDI Classic
  • System Gas Boiler
  • 35kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 7 years
 Worcester Bosch Greenstar 8000 Style 30KW
  • System Gas Boiler
  • 30kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 12 years
 Worcester Bosch Greenstar 8000 Style 35KW
  • System Gas Boiler
  • 35kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 12 years
 Worcester Bosch Greenstar 9I
  • System Gas Boiler
  • 9.2kW
  • Band rating: A
  • ERP rating: A
  • Warranty: 8 years

Powered by
►
Necessary cookies enable essential site features like secure log-ins and consent preference adjustments. They do not store personal data.
None
►
Functional cookies support features like content sharing on social media, collecting feedback, and enabling third-party tools.
None
►
Analytical cookies track visitor interactions, providing insights on metrics like visitor count, bounce rate, and traffic sources.
None
►
Advertisement cookies deliver personalized ads based on your previous visits and analyze the effectiveness of ad campaigns.
None
Powered by

Boiler Services

Plumbing & Heating

Help & Info