Buffer Tanks
Hot Water Cylinders · Renewables
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Buying advice for buffer tanks
Buying buffer tanks at Plumb Supply
Our buffer tanks range sits within hot water cylinders, part of the wider renewables department. Every price is shown ex VAT by default so it matches the figures you quote on, with inc VAT available from the toggle. Use the filters to narrow by brand, price band or availability, and check the specification on each product page before you order.
Check the specification first
Sizes, connections and outputs vary between manufacturers. Open the product page and confirm the dimensions and fittings against your existing installation before ordering.
Buy the consumables together
Ordering fittings, valves, chemicals and fixings on the same order keeps you above the free delivery threshold and saves a second trip to site.
Quoting a larger job?
Send us the drawings or a materials list and our team will price the whole schedule, so you're comparing one figure rather than line-by-line.
Delivery you can plan around
Free delivery over £100 ex VAT. Standard UK mainland delivery is £6.95 ex VAT.
Delivery information14-day returns
Unused stock items can be returned within 14 days of delivery in their original packaging.
Returns policySecure checkout
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How we handle your dataTalk to the trade counter
Mon–Fri 7am–5pm on 0330 043 4559 — specification checks, availability and project pricing.
Contact usStandard UK mainland delivery is £6.95 and free on orders over £100 ex VAT. Heavy or palletised items, the Highlands, Islands and Northern Ireland are quoted separately at checkout.