42 x 18 Hot Water Cylinder Jacket Tank Insulation by Mangers

Easy to fit, water is staying hot for longer. Good buy

Works very well for me, cutting the time In half I use the immersion heater for water heating over summer. It will pay for itself in one month. The supplied cord looping the panel eyelets around their top could have been a little longer.

If you are used to this kind of product you won't be disappointed. It a set of four red bags with wadding sealed inside. There's a grommet towards the top of each bag which allows you to tie them altogether and thin tape to wrap around the cylinder to hold the bags in place. Simple, but does the job.

Immersion heater jacket ,very good quality and perfect fit

Good quality and certainly does the job but seems bigger than the stated measurements. One day I'll get around to tidying it up a bit. Good value.

I used this product to lag my water heater. Easy to fit and keeps my tank hot

It really is a simple jacket to fit and given that it has to accommodate different tank sizes it looks ok.I used some string I had rather than the ties it came with (though they would have done the job).The slits in the base of plastic cover are intentional (I only realised after I'd started taping over!).Note in the photos that I have left the tank thermostat uncovered.I don't ever use the electric immersion element of my tank so in my case I have covered the tank fully with the jacket at the top.Only negative is that B&Q were doing the same jacket cheaper though having it delivered to the house saves on time and petrol.

Bought this to cover our new hot water tank which just had sprayed on foam. It was a little bit of a faff to fit with the string for the top of the 4 panels (you attach them separately and tie together) being a bit too short to make this easy. If your tank is in a cupboard then you will need long arms to get around the back and also make sure you don't cover the immersion heater. Once on however you can really feel how it retains the heat so hopefully this will reduce our gas bill!