The Willis Heater is fitted in parallel to the main, vented, domestic hot water cylinder and heats the water in the main cylinder from the top down. It saves money and energy, as you only heat the water you need.

Item includes : copper cylinder / shell, 3kW element and thermostat, supplied un-assembled (just like it is shown in the picture).

Cylinder has 15mm compression pipe connections.

Not suitable for use in hard water areas.

Not suitable for use as a standalone water heater, a Willis Heater must only be used in conjunction with a vented hot water cylinder.

Customer Reviews

Average Rating: 5

Willis External Immersion Heater | Cylinder And 3kW Element

Stevensons was the only merchant I could find that still stock the 'original' quality Willis shell, these are not easy to find on uk mainland. My email to Stevensons was replied to immediately and my well packaged order was received the following day. Excellent service, Thank you very much.Den (27 Apr 2021, 19:51)

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Product Code	GSG
Condition	New
Weight	1.75kg

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Willis External Immersion Heater Complete With 3kW Element

£63.99

Customer Reviews

Willis External Immersion Heater | Cylinder And 3kW Element

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