Expansion Tanks & Vessels
What is a Central Heating Expansion Tank Used For?
Central heating tanks are an essential component for most domestic systems, helping to maintain the correct pressure throughout the system. Expansion vessels work similarly to an overflow tank, allowing excess water or air to be stored as the system heats and cools. All boilers are already fitted with an expansion tank, but they may need replacing if you frequently experience pressure loss, leaving you without heating or hot water. Browse our full selection of central heating expansion tanks here and find high-quality replacement parts.
Product code: 89200
4 Panel Cylinder Jacket 36 x 18"
£19.99
ex. VAT £16.66 Each
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Product code: 67812
Heatrae Sadia Megaflo Eco Indirect Cylinder 250L
£1749.00 was £1979.52
ex. VAT £1457.50 Each
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Product code: 26919
Ariston Andris Expansion Vessel & Non-Return Valve KIT A
£51.44 was £54.78
ex. VAT £42.87 Each
Product code: 64278
Expansion Vessel 18L
£36.90 was £38.71
ex. VAT £30.75 Each
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Product code: 97382
4 Panel Cylinder Jacket 42 x 18"
£23.44
ex. VAT £19.53 Each
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Product code: 85192
Joule Invacyl Unvented Indirect Cylinder 180L
£626.98
ex. VAT £522.48 Each
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Product code: 40149
Tesla Copper Immersion Heater & Resettable Thermostat 27"
£25.99
ex. VAT £21.66 Each
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Product code: 93426
Joule Invacyl Slimline Indirect Unvented Cylinder 180L
£759.98
ex. VAT £633.32 Each
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Product code: 30686
Joule Invacyl Unvented Indirect Cylinder 250L
£699.98
ex. VAT £583.32 Each
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Product code: 49984
Tesla Long Life Incoloy Immersion Heater & Resettable Thermostat 11"
£26.75
ex. VAT £22.29 Each
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Product code: 65632
Tesla Long Life Incoloy Immersion Heater & Resettable Thermostat 27"
£29.97
ex. VAT £24.97 Each
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Product code: 12829
Tesla Copper Immersion Heater & Resettable Thermostat 11"
£21.40
ex. VAT £17.83 Each
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Product code: 78463
Heatrae Sadia Megaflo Eco Direct Cylinder 250L
£1520.00
ex. VAT £1266.67 Each
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Product code: 77506
Joule Invacyl Unvented Indirect Cylinder 300L
£765.98
ex. VAT £638.32 Each
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