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Boilers and Boilers Spares

Boilers and Boilers Spares — Baxi, EHS, Glowworm, Grant, Heatline, Heatrae Sadia, Ideal Heating, Keston, Vaillant, Viessmann, Worcester Bosch. Energy-efficient, durable boilers and OEM spares for residential and commercial use. Compact condensing, combi and system options, plus thermostats, pumps, valves and controls for easy installation and reliable performance. Meets UK safety standards and comes with trusted brand warranties. Free local delivery available. Browse the Boilers and Boilers Spares collection and order online today.

Vaillant ecoFIT pure 825 25kW Combination Boiler Natural Gas ErP - 0010020389

Vaillant
Original price £1,578.26
Original price £1,578.26 - Original price £1,578.26
Original price £1,578.26
Current price £1,451.97
£1,451.97 - £1,451.97
Current price £1,451.97
In stock

Vaillant ecoFIT Pure 825 25kW Combination Boiler Natural Gas ErP - 0010020389 The Vaillant ecoFIT Pure 825 is a top-tier 25 kW combination boiler d...

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Original price £1,578.26
Original price £1,578.26 - Original price £1,578.26
Original price £1,578.26
Current price £1,451.97
£1,451.97 - £1,451.97
Current price £1,451.97
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Vaillant New ecoTEC plus 615 System boiler only 0010036010

Vaillant
Original price £1,648.64
Original price £1,648.64 - Original price £1,648.64
Original price £1,648.64
Current price £1,446.76
£1,446.76 - £1,446.76
Current price £1,446.76
In stock

The Vaillant ecoTEC Plus 615 System Boiler is a highly efficient and reliable heating solution, ideal for medium-sized homes that require a consist...

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Original price £1,648.64
Original price £1,648.64 - Original price £1,648.64
Original price £1,648.64
Current price £1,446.76
£1,446.76 - £1,446.76
Current price £1,446.76
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Vaillant New ecoTEC plus 635 35kw System Boiler Only 0010036014

Vaillant
Original price £2,433.63
Original price £2,433.63 - Original price £2,433.63
Original price £2,433.63
Current price £2,134.56
£2,134.56 - £2,134.56
Current price £2,134.56
In stock

The Vaillant ecoTEC Plus 635 System Boiler (0010036014) is a top-rated, high-efficiency system boiler designed to deliver powerful and reliable hea...

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Original price £2,433.63
Original price £2,433.63 - Original price £2,433.63
Original price £2,433.63
Current price £2,134.56
£2,134.56 - £2,134.56
Current price £2,134.56
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Vaillant Green iQ Ecotec 835 Exclusive Combi Boiler – High Efficiency Heating Solution

Vaillant
Original price £2,389.10
Original price £2,389.10 - Original price £2,389.10
Original price £2,389.10
Current price £2,205.33
£2,205.33 - £2,205.33
Current price £2,205.33
In stock

Vaillant ecoTEC exclusive 835 with Green iQ 35kW Combi Boiler Only – Advanced Efficiency Meets Sustainable Innovation The Vaillant ecoTEC exclusive...

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Original price £2,389.10
Original price £2,389.10 - Original price £2,389.10
Original price £2,389.10
Current price £2,205.33
£2,205.33 - £2,205.33
Current price £2,205.33
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Vaillant ecoFIT pure 612 12kw System Boiler Only 0010020395

Vaillant
Original price £1,466.21
Original price £1,466.21 - Original price £1,466.21
Original price £1,466.21
Current price £1,260.83
£1,260.83 - £1,260.83
Current price £1,260.83
In stock

Vaillant ecoFIT pure 612 12kW System Boiler Only – Model 0010020395 The Vaillant ecoFIT pure 612 is a compact and efficient system boiler, ideal fo...

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Original price £1,466.21
Original price £1,466.21 - Original price £1,466.21
Original price £1,466.21
Current price £1,260.83
£1,260.83 - £1,260.83
Current price £1,260.83
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Vaillant ecoTEC Plus 825 Combi Boiler 25kW (0010021823) – Energy Efficient Heating

Vaillant
Original price £1,892.10
Original price £1,892.10 - Original price £1,892.10
Original price £1,892.10
Current price £1,619.64
£1,619.64 - £1,619.64
Current price £1,619.64
In stock

Vaillant ecoTEC plus 825 25kW Combi Boiler Only – Model 0010021823 The Vaillant ecoTEC plus 825 is a compact and efficient combi boiler designed to...

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Original price £1,892.10
Original price £1,892.10 - Original price £1,892.10
Original price £1,892.10
Current price £1,619.64
£1,619.64 - £1,619.64
Current price £1,619.64
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Vaillant 350mm SS Wall Support Bracket

Vaillant
Original price £198.60
Original price £198.60 - Original price £198.60
Original price £198.60
Current price £165.50
£165.50 - £165.50
Current price £165.50

Original price £198.60
Original price £198.60 - Original price £198.60
Original price £198.60
Current price £165.50
£165.50 - £165.50
Current price £165.50
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Vaillant 720kW Insulated Plate Heat Exchanger Set

Vaillant
Original price £4,995.41
Original price £4,995.41 - Original price £4,995.41
Original price £4,995.41
Current price £4,162.83
£4,162.83 - £4,162.83
Current price £4,162.83

Original price £4,995.41
Original price £4,995.41 - Original price £4,995.41
Original price £4,995.41
Current price £4,162.83
£4,162.83 - £4,162.83
Current price £4,162.83
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Vaillant 2" Unvented Cylinder Kit

Vaillant
Original price £1,878.95
Original price £1,878.95 - Original price £1,878.95
Original price £1,878.95
Current price £1,565.79
£1,565.79 - £1,565.79
Current price £1,565.79

Original price £1,878.95
Original price £1,878.95 - Original price £1,878.95
Original price £1,878.95
Current price £1,565.79
£1,565.79 - £1,565.79
Current price £1,565.79
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Vaillant VDM25 Pump Group With 8m Mixer 1' Circuit Connections

Vaillant
Original price £802.88
Original price £802.88 - Original price £802.88
Original price £802.88
Current price £669.07
£669.07 - £669.07
Current price £669.07

Original price £802.88
Original price £802.88 - Original price £802.88
Original price £802.88
Current price £669.07
£669.07 - £669.07
Current price £669.07
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Vaillant VRC-463 Cascade 3 x Boiler Inline

Vaillant
Original price £5,414.04
Original price £5,414.04 - Original price £5,414.04
Original price £5,414.04
Current price £4,511.70
£4,511.70 - £4,511.70
Current price £4,511.70

Original price £5,414.04
Original price £5,414.04 - Original price £5,414.04
Original price £5,414.04
Current price £4,511.70
£4,511.70 - £4,511.70
Current price £4,511.70
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Vaillant 160mm 1000mm Internal Flue Extension

Vaillant
Original price £71.98
Original price £71.98 - Original price £71.98
Original price £71.98
Current price £59.99
£59.99 - £59.99
Current price £59.99

Original price £71.98
Original price £71.98 - Original price £71.98
Original price £71.98
Current price £59.99
£59.99 - £59.99
Current price £59.99
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Vaillant 160mm External Flue Support Kit

Vaillant
Original price £646.61
Original price £646.61 - Original price £646.61
Original price £646.61
Current price £538.85
£538.85 - £538.85
Current price £538.85

Original price £646.61
Original price £646.61 - Original price £646.61
Original price £646.61
Current price £538.85
£538.85 - £538.85
Current price £538.85
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Vaillant 160mm Pipe Clamp

Vaillant
Original price £88.29
Original price £88.29 - Original price £88.29
Original price £88.29
Current price £73.57
£73.57 - £73.57
Current price £73.57

A heavy‑duty 160 mm pipe clamp designed for secure mounting of Vaillant 160 mm flue pipework. Built for reliable support and easy installation, thi...

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Original price £88.29
Original price £88.29 - Original price £88.29
Original price £88.29
Current price £73.57
£73.57 - £73.57
Current price £73.57
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Vaillant 160mm External Flue Clamp

Vaillant
Original price £165.28
Original price £165.28 - Original price £165.28
Original price £165.28
Current price £137.73
£137.73 - £137.73
Current price £137.73

Original price £165.28
Original price £165.28 - Original price £165.28
Original price £165.28
Current price £137.73
£137.73 - £137.73
Current price £137.73
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Vaillant 160mm 1000mm External Extension Flue O/Side Install

Vaillant
Original price £247.31
Original price £247.31 - Original price £247.31
Original price £247.31
Current price £206.08
£206.08 - £206.08
Current price £206.08

A 160 mm diameter, 1000 mm long external extension flue engineered for outside‑side installation with Vaillant flue systems and boilers. Provides a...

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Original price £247.31
Original price £247.31 - Original price £247.31
Original price £247.31
Current price £206.08
£206.08 - £206.08
Current price £206.08
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Vaillant 160mm 500mm External Extension Flue O/Side Install

Vaillant
Original price £148.14
Original price £148.14 - Original price £148.14
Original price £148.14
Current price £123.46
£123.46 - £123.46
Current price £123.46

Original price £148.14
Original price £148.14 - Original price £148.14
Original price £148.14
Current price £123.46
£123.46 - £123.46
Current price £123.46
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Vaillant 160mm External Flue Flat Roof Collar

Vaillant
Original price £299.24
Original price £299.24 - Original price £299.24
Original price £299.24
Current price £249.36
£249.36 - £249.36
Current price £249.36

Original price £299.24
Original price £299.24 - Original price £299.24
Original price £299.24
Current price £249.36
£249.36 - £249.36
Current price £249.36
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Vaillant 160mm External Vertical Flue Terminal

Vaillant
Original price £453.10
Original price £453.10 - Original price £453.10
Original price £453.10
Current price £377.58
£377.58 - £377.58
Current price £377.58

Original price £453.10
Original price £453.10 - Original price £453.10
Original price £453.10
Current price £377.58
£377.58 - £377.58
Current price £377.58
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Vaillant 160mm External Flue Terminal

Vaillant
Original price £201.61
Original price £201.61 - Original price £201.61
Original price £201.61
Current price £168.01
£168.01 - £168.01
Current price £168.01

Original price £201.61
Original price £201.61 - Original price £201.61
Original price £201.61
Current price £168.01
£168.01 - £168.01
Current price £168.01
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Vaillant DN160 Protection Grid

Vaillant
Original price £70.89
Original price £70.89 - Original price £70.89
Original price £70.89
Current price £59.07
£59.07 - £59.07
Current price £59.07

Original price £70.89
Original price £70.89 - Original price £70.89
Original price £70.89
Current price £59.07
£59.07 - £59.07
Current price £59.07
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Vaillant 240 kW Insulated Heat Plate Exchanger

Vaillant
Original price £2,862.30
Original price £2,862.30 - Original price £2,862.30
Original price £2,862.30
Current price £2,385.25
£2,385.25 - £2,385.25
Current price £2,385.25

Original price £2,862.30
Original price £2,862.30 - Original price £2,862.30
Original price £2,862.30
Current price £2,385.25
£2,385.25 - £2,385.25
Current price £2,385.25
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Vaillant VCR-462 Cascade 2 x Boiler Inline DN65

Vaillant
Original price £3,515.94
Original price £3,515.94 - Original price £3,515.94
Original price £3,515.94
Current price £2,929.94
£2,929.94 - £2,929.94
Current price £2,929.94

Original price £3,515.94
Original price £3,515.94 - Original price £3,515.94
Original price £3,515.94
Current price £2,929.94
£2,929.94 - £2,929.94
Current price £2,929.94
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Vaillant 300mm SS Pipe Clamp(1 Per Extension)

Vaillant
Original price £108.27
Original price £108.27 - Original price £108.27
Original price £108.27
Current price £90.23
£90.23 - £90.23
Current price £90.23

Original price £108.27
Original price £108.27 - Original price £108.27
Original price £108.27
Current price £90.23
£90.23 - £90.23
Current price £90.23
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