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

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Fuel type

Gas
(817)
Oil
(502)
Electric
(62)

Boiler type

Combi
(475)
Regular
(384)
System
(340)

Manufacturer

Alpha
(49)
Ariston
(35)
ATAG
(17)
Baxi
(79)
Biasi
(31)
Daikin
(3)
Ferroli
(33)
Glow-worm
(50)
Heatline
(2)
Ideal
(122)
Intergas
(24)
Johnson and Starley
(6)
Keston
(5)
Main
(12)
Navien
(8)
Potterton
(74)
Ravenheat
(26)
Vaillant
(78)
Viessmann
(35)
Vokera
(32)
Warmhaus
(13)
Worcester Bosch
(76)
Zanussi
(7)

Clear search

Boiler Model	kW	Efficiency	Warranty	Typical Price
Best Sellers
Vaillant ecoTEC plus 825 Combi Gas Boiler VIEW	20.4 kw	94%	10 years	£1,152	VIEW
Vaillant ecoTEC plus 615 System Gas Boiler VIEW	15.4 kw	93%	10 years	£971	VIEW
Vaillant ecoTEC plus 624 System Gas Boiler VIEW	24.4 kw	94%	10 years	£1,227	VIEW
Vaillant ecoTEC plus 832 Combi Gas Boiler VIEW	25.7 kw	94%	10 years	£1,248	VIEW
Vaillant ecoTEC plus 835 Combi Gas Boiler VIEW	32.2 kw	94%	10 years	£1,431	VIEW
Vaillant ecoTEC plus 838 Combi Gas Boiler VIEW	30.1 kw	94%	10 years	£1,408	VIEW
Vaillant ecoTEC plus 424 Regular Gas Boiler VIEW	24.6 kw	94%	5 years	£1,007	VIEW
Vaillant ecoTEC plus 418 Regular Gas Boiler VIEW	18.3 kw	94%	5 years	£959	VIEW
Vaillant ecoFIT Pure 418 Regular Gas Boiler VIEW	18.3 kw	94%	10 years	£865	VIEW
Vaillant ecoFIT Pure 425 Regular Gas Boiler VIEW	25.4 kw	94%	10 years	£976	VIEW
Available
Vaillant ecoTEC plus 435 Regular Gas Boiler VIEW	35.1 kw	93%	5 years	£1,453	VIEW
Vaillant ecoTEC plus 415 Regular Gas Boiler VIEW	15.1 kw	94%	5 years	£911	VIEW
Vaillant ecoTEC Pro 28 kW Combi Gas Boiler VIEW	25.9 kw	94%	10 years	£1,119	VIEW
Vaillant ecoTEC plus 612 System Gas Boiler VIEW	12.2 kw	92%	10 years	£902	VIEW
Vaillant ecoTEC plus 618 System Gas Boiler VIEW	18.5 kw	94%	10 years	£1,098	VIEW
Vaillant ecoTEC plus 630 System Gas Boiler VIEW	30.4 kw	94%	10 years	£1,363	VIEW
Vaillant ecoTEC plus 637 System Gas Boiler VIEW	37.6 kw	94%	10 years	£1,537	VIEW
Vaillant ecoTEC Exclusive Green IQ 835 Combi Gas Boiler VIEW	26.4 kw	94%	10 years	£1,425	VIEW
Vaillant ecoTEC Pro 30kW combi Gas boiler VIEW	25.7 kw	93%	10 years	£1,211	VIEW
Vaillant ecoFIT pure 612 system Gas boiler VIEW	12.3 kw	94%	10 years	£894	VIEW
Vaillant ecoFIT pure 615 system Gas boiler VIEW	15.2 kw	94%	10 years	£980	VIEW
Vaillant ecoFIT pure 618 System Gas boiler VIEW	18.3 kw	94%	10 years	£1,058	VIEW
Vaillant ecoFIT pure 625 System Gas boiler VIEW	25.4 kw	94%	10 years	£1,243	VIEW
Vaillant ecoFIT pure 630 System Gas boiler VIEW	30.5 kw	94%	10 years	£1,227	VIEW
Vaillant ecoTEC plus 430 Regular Gas Boiler VIEW	30.5 kw	94%	5 years	£1,167	VIEW
Vaillant ecoTEC plus 412 Regular Gas Boiler VIEW	12.3 kw	94%	5 years	£805	VIEW
Vaillant ecoTEC Exclusive Green IQ 843 Combi Gas Boiler VIEW	36 kw	94%	10 years	£1,673	VIEW
Vaillant ecoFIT pure 825 Combi Gas Boiler VIEW	19.1kw	94%	10 years	£907	VIEW
Vaillant ecoFIT pure 830 Combi Gas Boiler VIEW	26.5 kw	94%	10 years	£1,058	VIEW
Vaillant ecoFIT pure 835 Combi Gas Boiler VIEW	26.7 kw	94%	10 years	£1,192	VIEW
Vaillant ecoTEC exclusive Green iQ 627 System Gas Boiler VIEW	26.7 kw	94%	10 years	£1,390	VIEW
Vaillant ecoTEC plus 938 Combi Gas Boiler VIEW	30.9 kw	94%	10 years	£1,703	VIEW
Vaillant ecoTEC plus 64kW System Gas Boiler VIEW	64kw	94%	5 years	£2,700	VIEW
Vaillant ecoTEC plus 48kW System Gas Boiler VIEW	48 kw	94%	5 years	£2,264	VIEW
Vaillant ecoFIT pure 412 Regular Gas Boiler VIEW	12.3 kw	94%	10 years	£792	VIEW
Vaillant ecoFIT pure 415 Regular Gas Boiler VIEW	15.2 kw	94%	10 years	£792	VIEW
Vaillant ecoFIT Pure 430 Regular Gas Boiler VIEW	30.5 kw	94%	10 years	£1,002	VIEW
Vaillant ecoFIT Pure 435 Regular Gas Boiler VIEW	34.8 kw	94%	10 years	£1,533	VIEW
Vaillant ecoTEC Pro 24kW Combi Gas boiler VIEW	24.8 kw	94%	10 years	£1,015	VIEW
Show Discontinued
Vaillant ecoTEC exclusive 832 Combi Gas Boiler VIEW	32kw	89.3%	2 years	£1,200	VIEW
Vaillant ecoTec plus 937 Combi Gas Boiler VIEW	37kw	89.3.%	5 years	£1,500	VIEW
Vaillant EcoTEC Exclusive 32kW Combi Gas Boiler VIEW	32kw	89.8%	5 years	£1,395	VIEW
Vaillant EcoFIt sustain 825 Combi Gas Boiler VIEW	25kw	89.3%	5 years	£1,250	VIEW
Vaillant EcoFIt sustain 830 Combi Gas Boiler VIEW	30kw	89.3%	5 years	£1,500	VIEW
Vaillant EcoFIt sustain 835 Combi Gas Boiler VIEW	35kw	89.3%	5 years	£1,300	VIEW
Vaillant Home 25kW Combi Gas Boiler VIEW	25kw	89.3%	2 years	£1,525	VIEW
Vaillant Home 30kW Combi Gas Boiler VIEW	30kw	89.3%	2 years	£1,025	VIEW
Vaillant Home 35kW Combi Gas Boiler VIEW	35kw	89.3%	2 years	£1,300	VIEW
Vaillant EcoTEC 65kW System Gas Boiler VIEW	65kw	95.5%	2 years	£1,500	VIEW
Vaillant EcoTEC 46kW System Gas Boiler VIEW	46kw	95.8%	2 years	£2,400	VIEW
Vaillant Home 12kW System Gas Boiler VIEW	12kw	93%	2 years	£2,090	VIEW
Vaillant Home 15kW System Gas Boiler VIEW	15kw	93%	2 years	£N/A	VIEW
Vaillant Home 18kW System Gas Boiler VIEW	18kw	93%	2 years	£N/A	VIEW
Vaillant Home 25kW System Gas Boiler VIEW	25kw	89.4%	2 years	£825	VIEW
Vaillant Home 12kW Regular Gas Boiler VIEW	12kw	89.4%	2 years	£N/A	VIEW
Vaillant Home 15kW Regular Gas Boiler VIEW	15kw	89.4%	2 years	£915	VIEW
Vaillant Home 18kW Regular Gas Boiler VIEW	18kw	89.4%	2 years	£855	VIEW
Vaillant Home 25kW Regular Gas Boiler VIEW	25kw	89.4%	2 years	£895	VIEW
Vaillant Home 30kW Regular Gas Boiler VIEW	30kw	89.4%	2 years	£925	VIEW

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Anglia - London - Midlands - North West - North East - Northern Ireland - Scotland - South Central - South East - South West - Wales

Filter boilers

Fuel type

Gas
(817)
Oil
(502)
Electric
(62)

Manufacturer

Alpha
(49)
Ariston
(35)
ATAG
(17)
Baxi
(79)
Biasi
(31)
Daikin
(3)
Ferroli
(33)
Glow-worm
(50)
Heatline
(2)
Ideal
(122)
Intergas
(24)
Johnson and Starley
(6)
Keston
(5)
Main
(12)
Navien
(8)
Potterton
(74)
Ravenheat
(26)
Vaillant
(78)
Viessmann
(35)
Vokera
(32)
Warmhaus
(13)
Worcester Bosch
(76)
Zanussi
(7)

Clear search

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What work do you require?

Compare Vaillant Gas Boilers

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Best Sellers

Available

Show Discontinued

Compare boilers

Try our boiler comparison tool

Need a new boiler?

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Boiler Cost Calculator

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Need a boiler repair?

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Need a new boiler?

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What work do you require?

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We're Boiler Guide

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Manufacturers

Find approved boiler engineers
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