High efficiency cylinders help you reduce your energy costs and lower carbon  emissions.

A cylinder is simply a tank that will store your hot water and pass it through taps and showers when required.

Unvented cylinders offer significant performance improvements over traditional cylinders. They come in a wide range of capacities from 90 to 300 litres so it’s easy to find a size that suits your home and lifestyle. They are highly insulated to reduce loss of heat and will give you the hot  water you need quickly.

You can choose from two types of cylinder. We have a cylinder for use with a boiler or a cylinder which allows you to add solar water heating to  your system. With a 25 year guarantee, our cylinders are manufactured ensuring the highest quality. They are made with 100% recyclable  components helping you to protect the environment.

Open vented central heating systems

These were commonplace in the UK before unvented systems were made legal in 1986. A hot and cold water tank is usually installed in the loft,  as they need to be at least one metre above the radiators for the heating to work. Cold water is stored in a header tank and supplied to the hot  water cylinder; which has an open vent pipe to release steam into the atmosphere. An open vent central heating system does have some  drawbacks; it can be noisy and because of its location in the loft, pipes and tanks are liable to freezing. There is also a risk of water contamination  as well as unreliable water pressures and temperature fluctuations.