Help & Advice for End Users

I am thinking of buying a Copper Industries cylinder and the literature states that it needs a 22mm cold feed. The feed to my house is 15mm, is this a problem?

This is a problem if you want to install an unvented system because all of connections on the cylinders in our range are 22mm diameter which is the required diameter to achieve flow rates to gain the best performance from the cylinder. However, you can install a Copper Industries cylinder into a vented installation provided the feed and expansion tank is appropriately sized.

Can I install an unvented cylinder in an apartment?

Technically yes but it is not always practical and depends on the incoming mains water pressure available in each case. If the mains water pressure is low we would recommend one of the cylinders from our combination unit range.

What grade of cylinder do I need?

Copper Industries manufacture our copper cylinders in the 3 grades described in BS 1566; Grade 1, Grade 2 and Grade 3. The cylinders are graded depending on the thickness of material used to cope with different operating conditions. Grade 3 cylinders are made from 0.7 – 1.2 mm thick copper and are designed to cope with a maximum working head of 10 metres.

Copper Industries only recommend this grade of cylinder operating within the stated parameters and connected to a reservoir or similar high quality water supply. Grade 2 cylinders are slightly thicker (0.9 – 1.4 mm) and are designed to work with a maximum working head of 15 metres. A Grade 2 cylinder would be recommended for most vented installations.

Finally, Grade 1 cylinders have the highest material thickness (1.2 – 2.0 mm) and are designed to work with pressurized systems which have a maximum working head of up to and including 25 metres. Sacrificial anodes are also available for hard water areas.

CAUTION: not all cylinder manufacturers classify their cylinders in the same way. If in doubt contact us directly.

I have found a booklet which has a section where installation and service information should be logged. Who should complete this, and if it is not filled in is my guarantee affected?

Yes, all unvented mains pressure cylinders require an annual service and should be installed by a suitably qualified person. Records supporting this information will be required should the guarantee be called into effect, and the booklet should be completed by the plumber/heating engineer carrying out the work.

I am looking to buy an unvented cylinder and wondered whether it would come complete with expansion vessel and control devices?

Unvented cylinders are supplied with all necessary components, an expansion vessel and control devices as a package.

Do you sell direct to the public?

No we don’t, but if you contact us we’ll guide you to your nearest stockist.

Do you produce dual coil cylinders that can be heated from two sources such as a conventional boiler and a secondary source such as solar panels?

Yes, we produce dual coil and triple coil versions of our vented and unvented cylinders with dimensions to suit many requirements.

What type and size of cylinder is the best to buy?

There are many variables affecting the right choice of cylinder for your installation. If in doubt please contact us for advice on which of our products is most applicable for your needs. (We provide an online tool for you to calculate your recommended storage capacity which you can find on our calculator page).

Can I use your cylinders with an Aga/Raeburn range?

Yes – with the correct type and model of vented cylinder, contact us for further details.

I cannot get sufficient pressure/flow rate, what can I do?

If you have a vented cylinder fed from a header tank, you could consider installing an unvented mains pressure cylinder or thermal store.