Do you have an Unvented Cylinder?

If you’re unsure, have a look at your water tank, and if the cylinder is white, then it's an unvented cylinder.

An unvented cylinder is a tank that stores hot water, taking its water directly from the mains supply, so you get strong, high-pressure hot water at your taps and showers without needing a separate water tank in the loft.

Just like your boiler and central heating system, your unvented cylinder needs to be serviced annually.

Unvented cylinders are pressurised systems, and they must be regularly checked by a an engineer with an Unvented Hot Water Systems qualification (G3-qualified). We want your home to stay safe and to have a constant hot water supply.

We get a notification that a service is due on our car, and the first thing we think is ‘more expense’, but when it comes to an unvented hot water cylinder, an annual service is vital to ensure you and your family’s safety.

During the service, the C.S Engineer will inspect all the safety devices on the cylinder, and will ask you about the cylinder’s performance since the last service.

This is not just a visual check; the engineer will carry out a full assessment to:

• Check the installation conforms to Part G3 of the Building Regulations.
• Check that all the temperature controls are operational.
• Check that all pressure controls and relief valves are operating correctly.
• Inspect all key safety devices.
• Make an assessment of general cylinder condition.

We can detect concerns early, which ultimately will reduce breakdowns and unscheduled call-outs, and prevent unexpected repair bills. Having your unvented cylinder serviced will also minimise the risk of failure and any potential property damage.

To ensure you’re prepared, it’s always good practice to keep hold of your cylinder’s instruction manual following the installation of your cylinder. This will be useful to the engineer when they undertake the inspection. It is also vital that you keep all servicing documents in a safe place so that, should these be required for validating your warranty, you will have them at hand.

Have a look and see when your next annual service is due, and contact our team to schedule the next one on 01227 263473.

At CS Heating & Plumbing, we cannot stress enough how important it is that you look after your cylinder. If you have any questions regarding the maintenance and safety of your cylinder, give us a call.