There are several simple ways of insulating your home that will save you money on fuel bills. This is achieved by fitting a non-heat conducting cover to pipes, water cylinders and radiators. This practice and the material used to perform it, is called lagging.
If you do not have a pre-insulated water cylinder, you should insulate the cylinder with a cylinder jacket. A cylinder jacket comprises of a number of plastic segments containing mineral-fibre insulation.
Measure the height and circumference of your cylinder to determine the size of jacket to purchase.
Feed a piece of string through the eyelets in the top of each section of the jacket and tie the sections around the pipes at the top of the cylinder.
Ensure the immersion heater cable is on the outside of the insulating jacket. Arrange the sections around the cylinder so there are no gaps and secure with the straps provided, but don't over tighten.
Arrange the sections around the cylinder so there are no gaps, ensuring that the immersion heater cable is on the outside.