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.
Joule Joule Joule / Joule Invacyl Slimline Direct Unvented Cylinder 60L

£569.98

ex. VAT £474.98 Each

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Joule Joule Joule / Joule Invacyl Slimline Direct Unvented Cylinder 120L

£591.98

ex. VAT £493.32 Each

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Joule Joule Joule / Joule Invacyl Unvented Direct Cylinder 150L

£513.98

ex. VAT £428.32 Each

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Joule Joule Joule / Joule Invacyl Unvented Indirect Cylinder 180L

£626.98

ex. VAT £522.48 Each

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

£704.98

ex. VAT £587.48 Each

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TESLA TESLA / Tesla Long Life Incoloy Immersion Heater & Resettable Thermostat 27"
( 99 )

£27.98

ex. VAT £23.32 Each

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TESLA TESLA / Tesla Long Life Incoloy Immersion Heater & Resettable Thermostat 11"
( 38 )

£24.98

ex. VAT £20.82 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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Joule Joule Joule / Joule Invacyl Slimline Direct Unvented Cylinder 150L

£604.98

ex. VAT £504.15 Each

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Joule Joule Joule / Joule Invacyl Slimline Indirect Unvented Cylinder 180L

£703.98

ex. VAT £586.65 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

£698.98

ex. VAT £582.48 Each

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4 Panel Cylinder Jacket 42 x 18"
( 71 )

£22.38

ex. VAT £18.65 Each

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4 Panel Cylinder Jacket 36 x 18"
( 78 )

£16.68

ex. VAT £13.90 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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TESLA TESLA / Tesla Copper Immersion Heater & Resettable Thermostat 11"
( 11 )

£19.98

ex. VAT £16.65 Each

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RM Cylinders RM Cylinders RM Cylinders / Indirect Hot Water Cylinder 900 x 450 117L
( 51 )

£274.97

ex. VAT £229.14 Each

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TESLA TESLA / Tesla Copper Immersion Heater & Resettable Thermostat 27"
( 12 )

£23.98

ex. VAT £19.98 Each

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Joule Joule Joule / Joule Invacyl Unvented Indirect Cylinder 150L

£606.98

ex. VAT £505.82 Each

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Joule Joule Joule / Joule Invacyl Unvented Direct Cylinder 250L

£647.98

ex. VAT £539.98 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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Joule Joule Joule / Joule Invacyl Unvented Indirect Cylinder 250L

£699.98

ex. VAT £583.32 Each

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

£663.98

ex. VAT £553.32 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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