The technical downloads section of the Copper Industries website has a copy you can access online or print.

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.

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.

Yes we do, available in a limited range of sizes both direct and indirect configurations.

Full details of the maintenance requirements for cylinders are contained in the installation and user guide supplied with every cylinder. Please contact us if an additional copy is required. It is important to for you to be aware that current Building Regulations require that the installation and maintenance of unvented (mains pressure) cylinders be carried out by a competent person who holds a recognised unvented cylinder qualification.

Yes, the unvented cylinder models are generally supplied with two immersion heaters however custom configurations with a combination of 3, 6 and 9 kW immersions are available on request.

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 by going to our calculator page).

Yes, provided the correct type and model of vented cylinder is used, contact us for further details.

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

Copper Industries unvented cylinders are supplied with all necessary components, an expansion vessel and control devices.

Our advanced product ranges are supplied with the appropriate type of immersion heater. We do not supply immersion heaters with standard domestic vented cylinders. Please contact us for further information on immersion heater options and their effect on heat up time for the end user.

Yes, contact us directly with the capacity, model and specification of your cylinder and we’ll provide you with the standing heat loss per day specific to the cylinder being installed.

All our insulating products are ODP and they have a GWP index of less than 5.

Building Regulations require that unvented (mains pressure) cylinders be fitted by a ‘competent’ person i.e. someone who holds a recognised certificate in the installation and maintenance of unvented (mains pressure) cylinders. Aside from the effect on the warranty, installation by a non-competent person can lead to problems with the safe and efficient running of the cylinder. It is also a requirement that the cylinder be serviced annually.

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.

A vented cylinder is serviced from a feed and expansion (F&E) tank typically sited in the roof space above the cylinder. As water is drawn from the cylinder it is replaced by water from the F&E tank. When the water in the cylinder is heated it expands and this expansion is taken up and into the F&E tank.

An unvented cylinder is typically fed from the cold mains. On unvented cylinders the dynamics of expansion and contraction of the water as it heats and cools are controlled by an expansion vessel fitted to the cylinder. Unvented cylinders are designed to work with hot water under pressure and are subject to Building Regulations governing the installation and maintenance of the cylinder.

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.

The traditional hot water cylinder, the type most of us are familiar with, uses an energy source to heat the water in the cylinder which is drawn off to feed the hot water taps and appliances.

In a Thermal store the body of water in the cylinder is heated in a similar fashion but instead of the store water being used, cold water from the mains supply is passed through a coil inside the cylinder. Heat from the store is transferred to the water as passes through the coil. The water from the coil is then cooled to a safe useable temperature by blending with cold water before being supplied to the hot water taps and appliances in the system.

The principle advantage of a Thermal store is the provision of hot water at mains pressure without using a mains pressure cylinder to a maximum of 3 bar.

Thermal stores are increasingly the cylinder of choice in flats and small apartments or installations where multiple heat sources are used. For more information on the MaxiPod please visit our MaxiPod page.

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.

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.

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.

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.

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

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

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

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).

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

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