Online Store | McDonald Water Storage

Keep your warranty intact by buying genuine manufacturers spares only through McDonald Water Storage.

Please note that all prices on our online store include VAT and free shipping to a mainland UK address, unless otherwise stated. Any additional shipping costs will be shown at the checkout stage of your order process.

Maintain Your Warranty

Genuine manufacturers spare parts

Immersion Heaters

Domestic and commercial ranges

Expansion Vessels

Nitrogen filled from 2 to 300 litres

Plate Heat Exchangers

From 50kW to 200kW

6kW Immersion Heater + Stat
£183.60 Incl VAT Part No: WIH6
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9kW 16″ 415V 3 Phase Immersion Heater
£183.60 Incl VAT Part No: WIH9
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16″ 3kW Low Watts Density Immersion Heater
£90.00 Incl VAT Part No: WIHLWD
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11″ 3kW Unvented Immersion Heater
£70.50 Incl VAT Part No: WUEIH
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15″ 3kW Immersion (STEELflow)
£82.20 Incl VAT Part No: WUEIHS
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11″ 3kW Low Watts Density Immersion Heater
£90.00 Incl VAT Part No: WIHLWDS
Add to basket
15″ 3kW Heavy Duty Immersion
£90.00 Incl VAT Part No: WUEIHHD
Add to basket

6kW Immersion Heater + Stat

9kW 16″ 415V 3 Phase Immersion Heater

16″ 3kW Low Watts Density Immersion Heater

11″ 3kW Unvented Immersion Heater

15″ 3kW Immersion (STEELflow)

11″ 3kW Low Watts Density Immersion Heater

15″ 3kW Heavy Duty Immersion

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mcdonald water storage products

To celebrate the launch of our online store with genuine McDonald Water Storage spares and selected cylinders with free next day delivery, we want you to enjoy a 10% discount on your first order.
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