new steelflow unvented range
The new extended range of STEELflow unvented cylinders is now available,
with white casing, pre-plumbed models and additional installer benefits.

See which product will meet your requirements.
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Thermal Store Specialists
Comprehensive range of thermal stores providing mains pressure hot water
with no requirement for an annual maintenance or safety check
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online cylinder store
Our service expansion sees the launch of a new online cylinder store
making purchasing your hot water storage solution a simpler process
and at a time to suit you.

Take a look at the range of products available to order.
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Unvented Cylinder flexibility
Unvented hot water storage solutions with the added flexibility of being standard design
or bespoke manufactured to suit your specific installation requirements
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Need SPARE Parts and Components?

Browse our exclusive McDonald Parts Range Now!

Register your unvented cylinder

Register your unvented product to extend warranty to 25 years.

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McDonald Water Storage

UK leading copper hot water cylinder manufacturers since 1945.

Our commitment to providing a total quality service is reflected in every aspect of our offering from the advice provided by our technical sales team through to the premium grade copper material used and our manufacturing systems and processes.

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