• Get the best quotes, fast!
  • Over 5,000 engineers across the UK
  • Gas Safe registered engineers
Need a new boiler? Get FREE no-obligation quotes now!
Get FREE no-obligation quotes now!
  • No delays! Get quotes today
  • Compare quotes & get the best prices
  • Gas Safe & OFTEC registered engineers
The smarter way to find approved boiler engineers
Excellent 4.7 out of 5
Excellent 4.7 out of 5

Compare Gas System Boilers

You can select up to 4 gas boilers. Simply add your choices to compare.

Filter boilers

Fuel type

Boiler type

Manufacturer

Alpha

Boiler Model kW Efficiency Warranty Typical Price

Available

Alpha ProTec Plus 50 System Gas Boiler 54kw 88.5% 3 years £983 VIEW
Alpha ProTec Plus 70 System Gas Boiler 74kw 88.6% 3 years £985 VIEW
Alpha ProTec Plus 90 System Gas Boiler 98kw 88.7% 3 years £1,144 VIEW
Alpha ProTec Plus 115 System Gas Boiler 121kw 88.5% 3 years £1,246 VIEW
Alpha E-TEC 20S System Gas Boiler 20kw 88.9% 5 years £1,015 VIEW
Alpha E-TEC 30s System Gas Boiler 30kw 89% 5 years £975 VIEW

Discontinued

Alpha CD28S System Gas Boiler 28kw 88.80% 3 years £840 VIEW
Alpha CD20S System Gas Boiler 20kw 88.8% 3 years £770 VIEW
Alpha CD12S System Gas Boiler 12kw 88.60% 3 years £760 VIEW
Alpha InTec2 20SE System Gas Boiler 20kw 88.9% 5 years £795 VIEW
Alpha InTec2 30SE System Gas Boiler 30kw 89% 5 years £827 VIEW
Alpha InTec 12S System Gas Boiler 13kw 88.80% 3 years £800 VIEW
Alpha InTec 18S System Gas Boiler 20kw 88.80% 3 years £900 VIEW
Alpha InTec 28S System Gas Boiler 30kw 89.00% 3 years £900 VIEW

Ariston

ATAG

Boiler Model kW Efficiency Warranty Typical Price
ATAG IS40 40kW System Gas Boiler 40kw 89.8% 10 years £N/A VIEW
ATAG IS32 32kW System Gas Boiler 32kw 89.8% 10 years £N/A VIEW
ATAG IS24 24kW System Gas Boiler 24kw 89.8% 10 years £N/A VIEW
ATAG IS18 18kW System Gas Boiler 18kw 89.8% 10 years £N/A VIEW
ATAG IS15 15kW System Gas Boiler 15kw 89.8% 10 years £N/A VIEW

Baxi

Boiler Model kW Efficiency Warranty Typical Price

Available

Baxi Megaflo System 15 Gas Boiler 15kw 88.6% 7 years £765 VIEW
Baxi Megaflo System 18 Gas Boiler 18kw 88.6% 7 years £740 VIEW
Baxi Megaflo System 24 Gas Boiler 24kw 88.6% 7 years £895 VIEW
Baxi Megaflo System 28 Gas Boiler 28kw 88.5% 7 years £945 VIEW
Baxi Megaflo System 32 Gas Boiler 32kw 88.5% 7 years £975 VIEW
Baxi 615 15kW System Gas Boiler 15kw 89% 7 years £N/A VIEW
Baxi 618 18kW System Gas Boiler 18kw 89% 7 years £N/A VIEW
Baxi 624 24kW System Gas Boiler 24kw 89% 7 years £N/A VIEW
Baxi 818 18kW System Gas Boiler 18kw 93% 10 years £N/A VIEW
Baxi 824 24kW System Gas Boiler 24kw 93% 10 years £N/A VIEW

Discontinued

Baxi EcoBlue System 12 Gas Boiler 12kw 89.1% 7 years £880 VIEW
Baxi EcoBlue System 15 Gas Boiler 15kw 89.1% 7 years £925 VIEW
Baxi EcoBlue System 18 Gas Boiler 18kw 89.1% 7 years £960 VIEW
Baxi EcoBlue System 24 Gas Boiler 24kw 89.1% 7 years £976 VIEW
Baxi EcoBlue System 28 Gas Boiler 28kw 89.1% 7 years £1,112 VIEW
Baxi EcoBlue System 32 Gas Boiler 32kw 89.1% 7 years £1,127 VIEW

Biasi

Ferroli

Glow-worm

Boiler Model kW Efficiency Warranty Typical Price

Available

Glow-worm Easicom 25s System Gas Boiler 25kw 94% 3 years £860 VIEW
Glow-worm Energy System 12kW Gas Boiler 12kw 89.3% 7 years £700 VIEW
Glow-worm Energy System 15kW Gas Boiler 15kw 89.3% 7 years £725 VIEW
Glow-worm Energy System 18kW Gas Boiler 18kw 89.3% 7 years £765 VIEW
Glow-worm Energy System 25kW Gas Boiler 25kw 89.3% 7 years £785 VIEW
Glow-worm Energy System 30kW Gas Boiler 30kw 89.3% 7 years £850 VIEW
Glow-worm Ultimate3 25kW System Gas Boiler 25kw 89.7% 5 years £725 VIEW
Glow-worm Easicom3 25s System Gas Boiler 25kw 89.7% 4 years £595 VIEW

Discontinued

Glow-worm Ultimate2 25kW System Gas Boiler 25kw 89.3% 5 years £820 VIEW

Ideal

Boiler Model kW Efficiency Warranty Typical Price

Available

Ideal Logic System 30kW Gas Boiler 30kw 98.3% 2 years £980 VIEW
Ideal Vogue GEN2 S15 System Gas Boiler 15kw 92.4% 10 years £976 VIEW
Ideal Vogue GEN2 S18 System Gas Boiler 18kw 93.2% 10 years £1,074 VIEW
Ideal Vogue GEN2 S26 System Gas Boiler 26kw 93.1% 10 years £1,142 VIEW
Ideal Vogue GEN2 S32 System Gas Boiler 32kw 93.2% 10 years £1,264 VIEW
Ideal Logic Max S15 System Gas Boiler 15 kw 93% 10 years £970 VIEW
Ideal Logic Max S18 System Gas Boiler 18 kw 93% 10 years £N/A VIEW
Ideal Logic Max S24 System Gas Boiler 24.2 kw 94% 10 years £1,049 VIEW
Ideal Logic Max S30 System Gas Boiler 30.3 kw 93% 10 years £1,084 VIEW
Ideal Vogue Max S15 System Gas Boiler 15 kw 92.4% 10 years £1,030 VIEW
Ideal Vogue Max S18 System Gas Boiler 18 kw 93.2% 10 years £1,125 VIEW
Ideal Vogue Max S26 System Gas Boiler 26 kw 93.1% 10 years £1,201 VIEW
Ideal Vogue Max S32 System Gas Boiler 32 kw 93.2% 10 years £1,258 VIEW
Ideal Logic Plus System S15 Gas Boiler 15 kw 93% 7 years £874 VIEW
Ideal Logic Plus System S18 Gas Boiler 18 kw 93% 7 years £885 VIEW
Ideal Logic Plus System S24 Gas Boiler 24.2 kw 94% 7 years £918 VIEW
Ideal Logic Plus System S30 Gas Boiler 30.3 kw 93% 7 years £954 VIEW
Ideal Logic System S15 Gas Boiler 15 kw 93% 2 years £785 VIEW
Ideal Logic System S18 Gas Boiler 15 kw 93% 2 years £834 VIEW
Ideal Logic System S24 Gas Boiler 24.2 kw 94% 2 years £856 VIEW
Ideal Logic System S30 Gas Boiler 30.3 kw 93% 2 years £920 VIEW

Discontinued

Ideal Logic System 15kW Gas Boiler 15kw 89.30% 7 years £700 VIEW
Ideal Logic Plus System 15kW Gas Boiler 15kw 89.4% 7 years £815 VIEW
Ideal Logic Plus System 18kW Gas Boiler 18kw 89.4% 7 years £895 VIEW
Ideal Logic Plus System 24kW Gas Boiler 24kw 89.8% 7 years £920 VIEW
Ideal Logic Plus System 30kW Gas Boiler 30kw 89.5% 7 years £905 VIEW
Ideal Vogue 15kW System Gas Boiler 15kw 92% 10 years £840 VIEW
Ideal Vogue 18kW System Gas Boiler 18kw 93% 10 years £930 VIEW
Ideal Vogue 26kW System Gas Boiler 26kw 93% 10 years £910 VIEW
Ideal Vogue 32kW System Gas Boiler 32kw 93% 10 years £1,004 VIEW
Ideal Logic System 18kW Gas Boiler 18kw 97.8% 2 years £890 VIEW
Ideal Logic System 24kW Gas Boiler 24kw 98.5% 2 years £960 VIEW
Ideal Vogue Max 15kW System Gas Boiler 15kw 92% 10 years £995 VIEW
Ideal Vogue Max 18kW System Gas Boiler 18kw 93% 10 years £1,091 VIEW
Ideal Vogue Max 26kW System Gas Boiler 26kw 93% 10 years £1,037 VIEW
Ideal Vogue Max 32kW System Gas Boiler 32kw 93% 10 years £1,135 VIEW
Ideal Logic Max 15kW System Gas Boiler 15kw 93% 10 years £959 VIEW
Ideal Logic Max 18kW System Gas Boiler 18kw 93% 10 years £960 VIEW
Ideal Logic Max 24kW System Gas Boiler 24kw 94% 10 years £915 VIEW
Ideal Logic Max 30kW System Gas Boiler 30kw 93% 10 years £952 VIEW

Intergas

Boiler Model kW Efficiency Warranty Typical Price
Intergas Compact HRE SB 18Kw System Gas Boiler 18kw 88.9% 7 years £785 VIEW
Intergas Compact HRE SB 24 System Gas Boiler 23kw 88.9% 7 years £875 VIEW
Intergas Compact HRE SB 30 System Gas Boiler 27kw 89.2% 7 years £955 VIEW
Intergas Compact HRE SB 40 System Gas Boiler 41kw 89.2% 7 years £1,135 VIEW

Johnson and Starley

Boiler Model kW Efficiency Warranty Typical Price
Johnson and Starley QuanTec 24s System 24kW Oil Boiler 24kw 89.6% 8 years £N/A VIEW

Keston

Boiler Model kW Efficiency Warranty Typical Price
Keston S30 30kW System Gas Boiler 30kw 89.5% 7 years £1,100 VIEW

Main

Boiler Model kW Efficiency Warranty Typical Price
Main System Eco Elite 24kW Gas Boiler 24kw 89.1% 3 years £618 VIEW
Main System Eco Elite 28kW Gas Boiler 28kw 88.8% 3 years £635 VIEW
Main Eco Compact 15kW System Gas Boiler 15kw 93% 5 years £610 VIEW
Main Eco Compact 18kW System Gas Boiler 18kw 93% 5 years £675 VIEW

Navien

Boiler Model kW Efficiency Warranty Typical Price
Navien NCB 20kW System Gas Boiler 20kw 92% 7 years £N/A VIEW
Navien NCB 23kW System Gas Boiler 23kw 93% 7 years £N/A VIEW
Navien NCB 28kW System Gas Boiler 28kw 93% 7 years £N/A VIEW
Navien NCB 33kW System Gas Boiler 33kw 93% 7 years £N/A VIEW

Potterton

Boiler Model kW Efficiency Warranty Typical Price

Available

Potterton Promax System 12kW Gas Boiler 12kw 89% 2 years £845 VIEW
Potterton Promax System 15kW Gas Boiler 15kw 89% 2 years £935 VIEW
Potterton Promax System 18kW Gas Boiler 18kw 89% 2 years £830 VIEW
Potterton Promax System 24kW Gas Boiler 24kw 89% 2 years £875 VIEW
Potterton Promax System 32kW Gas Boiler 32kw 89% 2 years £965 VIEW
Potterton Ultra System 12kW Gas Boiler 12kw 89% 2 years £678 VIEW
Potterton Ultra System 15kW Gas Boiler 15kw 89% 2 years £900 VIEW
Potterton Ultra System 18kW Gas Boiler 18kw 89% 2 years £1,332 VIEW
Potterton Ultra System 21kW Gas Boiler 21kw 89% 2 years £1,322 VIEW
Potterton Ultra System 24kW Gas Boiler 24kw 89% 2 years £1,800 VIEW
Potterton Assure 15kW System Gas Boiler 15kw 93% 2 years £859 VIEW
Potterton Assure 18kW System Gas Boiler 18kw 93% 2 years £891 VIEW
Potterton Gold 18kW System Gas Boiler 18kw 89% 2 years £635 VIEW
Potterton Gold 24kW System Gas Boiler 24kw 89% 2 years £676 VIEW
Potterton Gold 28kW System Gas Boiler 28kw 89% 2 years £800 VIEW
Potterton Assure 24kW System Gas Boiler 24kw 93% 2 years £850 VIEW
Potterton Assure 12kW System Gas Boiler 12kw 93% 2 years £900 VIEW

Discontinued

Potterton Promax System HE Plus A 12kW Gas Boiler 12kw 91.10% 2 years £930 VIEW
Potterton Promax System HE Plus A 15kW Gas Boiler 15kw 91.1% 2 years £825 VIEW
Potterton Promax System HE Plus A 18kW Gas Boiler 18kw 91.1% 1 year £942 VIEW
Potterton Promax System HE Plus A 32kW Gas Boiler 32kw 91.1% 1 year £1,050 VIEW
Potterton Promax System HE Plus A 24kW Gas Boiler 24kw 91.1% 1 year £810 VIEW

Ravenheat

Boiler Model kW Efficiency Warranty Typical Price
Ravenheat WH System 4-24 26kW Gas Boiler 26kw 90.3% 5 years £579 VIEW
Ravenheat CS System 4-24 26kW Gas Boiler 26kw 90.3% 2 years £579 VIEW
Ravenheat CS System 3-20 26kW Gas Boiler 20kw 92% 2 years £N/A VIEW

Vaillant

Boiler Model kW Efficiency Warranty Typical Price

Available

Vaillant ecoTec plus 624 System Gas Boiler 24kw 89.4% 5 years £1,005 VIEW
Vaillant ecoTec plus 630 System Gas Boiler 30kw 89.4% 5 years £1,150 VIEW
Vaillant ecoTec plus 637 System Gas Boiler 37kw 89.2% 5 years £1,250 VIEW
Vaillant ecoFIT pure 612 system Gas boiler 12kw 89.3% 2 years £925 VIEW
Vaillant ecoFIT pure 615 system Gas boiler 15kw 89.1% 2 years £915 VIEW
Vaillant ecoFIT pure 618 system Gas boiler 18kw 89% 2 years £975 VIEW
Vaillant ecoFIT pure 625 system Gas boiler 25kw 89% 2 years £1,175 VIEW
Vaillant ecoFIT pure 630 system Gas boiler 30kw 89.3% 2 years £1,256 VIEW
Vaillant ecoTEC exclusive Green iQ 627 System Gas Boiler 27kw 94% 7 years £1,100 VIEW
Vaillant EcoTEC 65kW System Gas Boiler 65kw 95.5% 2 years £1,500 VIEW
Vaillant EcoTEC 46kW System Gas Boiler 46kw 95.8% 2 years £2,400 VIEW
Vaillant EcoTEC Plus 64kW System Gas Boiler 64kw 94% 5 years £1,500 VIEW
Vaillant Home 12kW System Gas Boiler 12kw 93% 2 years £2,090 VIEW
Vaillant Home 15kW System Gas Boiler 15kw 93% 2 years £N/A VIEW
Vaillant Home 18kW System Gas Boiler 18kw 93% 2 years £N/A VIEW
Vaillant Home 25kW System Gas Boiler 25kw 89.4% 2 years £825 VIEW

Discontinued

Vaillant ecoTec plus 612 System Gas Boiler 12kw 89.0% 5 years £850 VIEW
Vaillant ecoTec plus 615 System Gas Boiler 15kw 89% 5 years £965 VIEW
Vaillant ecoTec plus 618 System Gas Boiler 18kw 89.3% 5 years £965 VIEW

Viessmann

Vokera

Worcester Bosch

Boiler Model kW Efficiency Warranty Typical Price

Available

Worcester Bosch Greenstar 24i System Gas Boiler 24.6 kw 94% 5 years £1,080 VIEW
Worcester Bosch Greenstar 12i System Gas Boiler 12.2 kw 94% 5 years £908 VIEW
Worcester Bosch Greenstar 9i System Gas Boiler 9.2 kw 93% 5 years £899 VIEW
Worcester Bosch Greenstar 15i System Gas Boiler 15.3 kw 94% 5 years £971 VIEW
Worcester Bosch Greenstar 18i System Gas Boiler 18.4 kw 94% 5 years £1,024 VIEW
Worcester Bosch Greenstar 21i System Gas Boiler 21.6 kw 94% 5 years £1,034 VIEW
Worcester Bosch Greenstar 27i System Gas Boiler 27kw 92% 5 years £1,067 VIEW
Worcester Bosch Greenstar 30i System Gas Boiler 30kw 92% 5 years £1,114 VIEW
Worcester Bosch GB162 50kW System Gas Boiler 49.9 kw 93% 2 years £2,209 VIEW
Worcester Bosch GB162 65kW System Gas Boiler 69.5 kw 93% 2 years £2,646 VIEW
Worcester Bosch Greenstar 8000 Style 30kW System Gas Boiler 30kw 94% 5 years £1,317 VIEW
Worcester Bosch Greenstar 8000 Style 35kW System Gas boiler 35kw 94% 5 years £1,446 VIEW
Worcester Bosch Greenstar 8000 Life 30kW System Gas Boiler 30kw 94% 5 years £1,236 VIEW
Worcester Bosch Greenstar 8000 Life 35kW System Gas Boiler 35kw 94% 5 years £1,357 VIEW
Worcester Bosch GB162 85kW System Gas Boiler 84.5 kw N/a 2 years £3,509 VIEW
Worcester Bosch GB162 100kW System Gas Boiler 99.5 kw N/a 2 years £3,837 VIEW

Discontinued

Worcester Bosch Greenstar 30CDi Classic System Gas Boiler 30 kw 92% 7 years £1,155 VIEW
Worcester Bosch Greenstar 35CDi Classic System Gas Boiler 35kw 92% 7 years £1,187 VIEW

Zanussi

Boiler Model kW Efficiency Warranty Typical Price
Zanussi Ultra System 15kW Gas Boiler 12kw 91.1% 2 years £N/A VIEW
Zanussi Ultra System 18kW Gas Boiler 18kw 92% 2 years £N/A VIEW
Zanussi Ultra System 24kW Gas Boiler 24kw 91.1% 2 years £N/A VIEW
Zanussi Ultra System 30kW Gas Boiler 30kw 89.6% 2 - 10 years £N/A VIEW

Need a new boiler?

Get FREE no-obligation quotes now!

Excellent 4.7 out of 5
Excellent 4.7 out of 5

Filter boilers

Fuel type

Manufacturer

FILTER
COMPARE