Boilers by brand
We stock leading boiler manufacturers including Baxi, Glow-worm, ECA, Navien, Ideal, Worcester Bosch and more. To help you find the condensing boiler brand you're looking for, we've categorised them here by the manufacturer.
In the UK the use of condensing boilers is now compulsory unless certain criteria for exemption can be identified by a qualified heating engineer. Condensing boilers are water heaters in which a high efficiency (typically greater than 90%) is achieved by using the waste heat in the flue gases to pre-heat the cold water entering the boiler. Fuelled by gas or oil, they're called condensing boilers because the water vapour produced during combustion is condensed into water, which leaves the system via a drain.
Baxi Multifit 60/100 1 Metre Flue Extension
£60.35
£50.29
671 Available for Delivery
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Ideal Pack D 500 mm Flue Extension
£46.48
£38.73
52 Available for Delivery
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Ideal Pack D 1 Metre Flue Extension
£61.92
£51.60
438 Available for Delivery
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Ideal Pack D 2 Metre Flue Extension
£131.44
£109.53
53 Available for Delivery
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Glow-worm 500 mm Flue Extension
£34.74
£28.95
39 Available for Delivery
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Glow-worm 1 Metre Flue Extension
£52.10
£43.42
87 Available for Delivery
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Vaillant 470 mm Flue Extension
£42.97
£35.81
127 Available for Delivery
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Vaillant 970 mm Flue Extension
£62.12
£51.77
415 Available for Delivery
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Vaillant 1970 mm Flue Extension
£114.16
£95.13
91 Available for Delivery
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Vaillant 80/125 470 mm Flue Extension
£45.52
£37.93
30 Available for Delivery
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Vaillant 80/125 970 mm Flue Extension
£80.20
£66.83
27 Available for Delivery
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Vaillant 80/125 1970 mm Flue Extension
£138.00
£115.00
22 Available for Delivery
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Vaillant 80/125 Sliding Sleeve
£47.66
£39.72
8 Available for Delivery
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Vokera 500 mm Flue Extension
£40.39
£33.66
28 Available for Delivery
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Vokera 1 Metre Flue Extension
£72.65
£60.54
3 Available for Delivery
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Vokera Standard Efficiency 0.75 Metre Extension
£68.53
£57.11
8 Available for Delivery
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Vokera Standard Efficiency 1.5 Metre Extension
£121.08
£100.90
10 Available for Delivery
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Worcester 220mm Short Flue Extension
£34.02
£28.35
74 Available for Delivery
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Worcester 960 mm Flue Extension
£60.48
£50.40
285 Available for Delivery
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Worcester 2 Metre Flue Extension
£133.20
£111.00
41 Available for Delivery
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Worcester Silver 220 mm Short Flue Extension
£36.54
£30.45
23 Available for Delivery
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Worcester Silver 960 mm Flue Extension
£63.00
£52.50
8 Available for Delivery
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Vokera Telescopic Extension
£103.54
£86.28
50 Available for Delivery
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Vokera 2 Metre Flue Extension
£129.78
£108.15
2 Available for Delivery
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Navien 60/100 500mm Flue Extension
£49.20
£41.00
60 Available for Delivery
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Navien 60/100 1000mm Flue Extension
£51.60
£43.00
114 Available for Delivery
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Viessmann 60/100 500mm Flue Extension
£24.55
£20.46
61 Available for Delivery
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Viessmann 60/100 1 Metre Flue Extension
£34.60
£28.83
191 Available for Delivery
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Viessmann 60/100 1.95 Metre Flue Extension
£68.08
£56.73
22 Available for Delivery
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Viessmann 60/100 2.95 Metre Flue Extension c/w 3 Brackets (Uncuttable)
£155.12
£129.27
Order now for delivery within 10 working days
Available for back-ordered delivery
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