Skip to main content

Insulation Advice: Insulating Tanks, Pipes and Radiators

Insulating tanks, pipes and radiators

Lagging water tanks and pipes and insulating behind radiators reduces the amount of heat that escapes, so you spend less money heating water up, and hot water stays hotter for longer. 

How much could you save?

Insulating your hot water cylinder is one of the easiest ways to save energy and therefore money. If you already have a jacket fitted, check the thickness, it should be at least 75mm thick. If not, it's worth treating your cylinder to a new winter coat. Fitting a British Standard jacket around your cylinder will cut heat loss by over 75% and save you around £45 a year - more than the cost of the jacket!

By slipping pipe insulation around your exposed hot water pipes you’ll keep your hot water hotter for longer. Fitting insulation to pipes is easy if the pipes are accessible; if your pipes are hard to reach, you may need professional help.

Fitting a jacket and pipe lagging will also save 230 kg of carbon dioxide. Here are the figures:

Annual saving per year
DIY cost
Time taken to pay for itself
Carbon dioxide saving per year
Hot water tank jacket
Around £45
Around £15
Less than six months
Around 170kg
Primary pipe insulation
Around £15
Around £10
Around a year
Around 60kg
Savings based on a gas-heated 3 bedroom semi-detached house.

How to do it

A hot water cylinder jacket costs around £15, and fitting it is a straightforward job.

Pipe insulation are foam tubes that cover the exposed pipes between your hot water cylinder and boiler, reducing the amount of heat lost and therefore keeping your water hotter for longer. It's usually as simple as choosing the right size and then slipping it around the pipes.

Radiator reflector panels

If you’re trying to save money on your heating bills and reduce your energy consumption, radiator reflector panels are an attractive low-cost option. Fixed behind your radiators, they reflect heat from the radiator back into the room, instead of letting the heat out through an external wall. They have most benefit when installed on un-insulated walls.

To view Advanced Insulation's range of practical, Home Energy Saving Products, visit our website:
Energy Efficiency Products


Popular posts from this blog

The Beginners Guide to Pipe Insulation: Flexible Foams

Next up in the series we are doing on pipe insulation is "flexible foams"; a category that includes polyethylene and expanded nitrile rubber.

Polyethylene Pipe Insulation
Climaflex pipe insulation is the UK's leading brand for polyethylene pipe insulation. This is the grey foam that most people are familiar with, the kind you would traditionally find in garden centres for example. Polyethylene is the cheapest, widely available product in the market. People very often wrongly assume cheap means poor quality, this is not the case with a brand such as Climaflex. It has a thermal conductivity of 0.034 W/m.K at 0°C which is broadly equal to that of any other flexible foam, and it also has a much higher "μ factor" than other foams, making it more resistant to moisture ingress. These facotrs make it ideal for use around the home, being easy to work with and providing good insulation. 
The material can be purchased in 1m and 2m lengths, and is available in wall thicknesse…

The Beginners Guide To Pipe Insulation: Getting to grip with the basics

Our Beginners Guide series of blogs will look at the common areas of pipe insulation lagging that you will want to look at when choosing your product. This guide will be of most interest to the DIY installers, but some of our later guides will cover more complex products and areas of application.

One of the things we get asked about a lot is what the dimensions quoted for pipe insulation actually mean. You will always see three measurements quoted when describing pipe insulation; Wall Thickness, Bore Size and Length.

In the below diagram, A is the "Bore" and B is the "Wall".

Wall thickness is very simply how much insulation you have; so for example if you have 13mm Wall pipe insulation, then that means you have 13mm of insulation on either side of your pipe. This thickness is very often one of the most important part of your decision; too thin and you might not get the results you are looking for but too thick and it might not fit between your pipe and the wall.


Frost protection for domestic pipes

With the cold weather approaching we thought it would be a good idea to touch on how best to protect your pipes from frost this winter.

When dealing with frost protection on pipes inside a building your aim with insulating them is to delay the onset of freezing for as long as possible; it is not possible to guarantee a pipe will not freeze by insulation alone. The better the insulation, and the thicker the insulation, the longer you will give yourself. Under normal circumstances you aim to give yourself about 8-10 hours protection against sub zero temperatures. With pipes inside a home this is usually long enough to be sure the pipes will not freeze.

Ice formation inside the pipes will lead to an increase in pressure. As the water tries to flow this pressure will increase, and eventually will lead to the pipes bursting. A burst pipe can cause a lot of problems, not least of which is a lot of damage to your property and a lot of expense incurred.

Water regulations state that all water …