Hot Water Cylinders

Find hot water cylinders compatible with a range of central heating systems, including unvented, vented, direct and indirect hot water cylinders. At Toolstation, we stock hot water tanks from trusted brands like RM Cylinders and Tesla.

Types of Hot Water Cylinder



Several different hot water cylinders are available in various sizes and materials, including stainless steel and copper. Find the right option for your home based on your hot water usage and central heating system.

An unvented hot water cylinder is connected to the mains water system, so a cold water storage tank is not required, whilst a vented hot water cylinder is used for systems that rely on cold water storage.

Direct hot water cylinders heat water using an internal element, like an immersion heater, whilst indirect hot water cylinders use an external source like a boiler. Indirect cylinders are available in vented and unvented models.

Shop our full range of hot water cylinders and accessories here.
Heatrae Sadia Heatrae Sadia / Heatrae Sadia Megaflo Eco Direct Cylinder 250L

£1398.98

ex. VAT £1165.82 Each

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Joule Joule Joule / Joule Invacyl Unvented Direct Cylinder 120L

£493.98

ex. VAT £411.65 Each

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Joule Joule Joule / Joule Invacyl Unvented Direct Cylinder 300L
( 1 )

£698.98

ex. VAT £582.48 Each

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Joule Joule Joule / Joule Invacyl Unvented Indirect Cylinder 120L

£581.98

ex. VAT £484.98 Each

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RM Cylinders RM Cylinders / RM Optimum Stainless Steel Indirect Unvented Hot Water Cylinder 1720 x 545 250L

£805.98

ex. VAT £671.65 Each

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Heatrae Sadia Heatrae Sadia / Heatrae Sadia Megaflo Eco Direct Cylinder 70L

£818.98

ex. VAT £682.48 Each

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RM Cylinders RM Cylinders / RM Optimum Stainless Steel Direct Unvented Hot Water Cylinder 1720 x 545 250L

£631.98

ex. VAT £526.65 Each

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Heatrae Sadia Heatrae Sadia / Heatrae Sadia Megaflo Eco Direct Cylinder 125L

£949.98

ex. VAT £791.65 Each

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Heatrae Sadia Heatrae Sadia / Heatrae Sadia Megaflo Eco Direct Cylinder 300L

£1449.98

ex. VAT £1208.32 Each

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RM Cylinders RM Cylinders / RM Optimum Stainless Steel Indirect Unvented Hot Water Cylinder 1980 x 545 300L

£814.98

ex. VAT £679.15 Each

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Heatrae Sadia Heatrae Sadia / Heatrae Sadia Megaflo Eco Indirect Cylinder 125L

£1048.98

ex. VAT £874.15 Each

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RM Cylinders RM Cylinders / RM Optimum Stainless Steel Direct Unvented Hot Water Cylinder 1280 x 545 180L

£599.98

ex. VAT £499.98 Each

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RM Cylinders RM Cylinders / RM Optimum Stainless Steel Direct Unvented Hot Water Cylinder 1470 x 545 210L
( 1 )

£614.98

ex. VAT £512.48 Each

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Joule Joule Joule / Joule Invacyl Slimline Direct Unvented Cylinder 210L

£645.98

ex. VAT £538.32 Each

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RM Cylinders RM Cylinders / RM Optimum Stainless Steel Direct Unvented Hot Water Cylinder 900 x 545 120L

£540.98

ex. VAT £450.82 Each

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RM Cylinders RM Cylinders / RM Optimum Stainless Steel Indirect Unvented Hot Water Cylinder 1280 x 545 180L

£648.98

ex. VAT £540.82 Each

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Joule Joule Joule / Joule Invacyl Slimline Indirect Unvented Cylinder 150L

£690.98

ex. VAT £575.82 Each

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Heatrae Sadia Heatrae Sadia / Heatrae Sadia Megaflo Eco Indirect Cylinder 300L

£1999.98

ex. VAT £1666.65 Each

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Heatrae Sadia Heatrae Sadia / Heatrae Sadia Megaflo Eco Direct Cylinder 145L

£1114.98

ex. VAT £929.15 Each

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Joule Joule Joule / Joule Invacyl Slimline Direct Unvented Cylinder 90L

£579.98

ex. VAT £483.32 Each

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Heatrae Sadia Heatrae Sadia / Heatrae Sadia Megaflo Eco Indirect Cylinder 145L

£1198.98

ex. VAT £999.15 Each

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RM Cylinders RM Cylinders / RM Optimum Stainless Steel Indirect Unvented Hot Water Cylinder 1470 x 545 210L

£769.98

ex. VAT £641.65 Each

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Heatrae Sadia Heatrae Sadia / Heatrae Sadia Megaflo Eco Indirect Cylinder 170L

£1402.98

ex. VAT £1169.15 Each

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Joule Joule Joule / Joule Invacyl Unvented Direct Cylinder 250L
( 1 )

£647.98

ex. VAT £539.98 Each

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