Heat Insulation On Pipes

Where?

Domestic insulation, for example, typically uses an expanded foam cylinder that is simply slipped over the pipe and the gap closed up. It isn't suitable for exterior pipes.

Also depends what you can get hold of where you are. Glass wool can be used, if you can't get the pre-formed foam things. Cut into strips, and wind round the pipes. Secure with e.g. duct tape. WEAR GLOVES & FACEMASK !

Pipe insulation will help to reduce heat loss by up to 80 percent through hot water pipes and will stop sweating on cold water pipes. Savings will depend on type of heating fuel used, but in all cases the payback is well within one year. The insulation is is pre-slit for easy installation (simply snapping onto the pipe), and may be trimmed with a utility knife. One package includes four 36 inch long pieces. Two sizes are available. The 3/4 inch ID (inside diameter) tube is suitable for use on 3/4" copper tubing, 1/2" PVC pipe, and 1/2" steel pipe. The 1/2 inch ID tube is suitable for use on 1/2" copper tubing, 3/8" PVC pipe, and 3/8" steel pipe. Go here for more info

http://www.energyfederation.org/consumer/default.php/cPath/27_648_985

Mineral wool, chemical foam etc. Talk to an insulation specialist: he'll be able to advise you what is best. Even if you're planning to DIY, you'll still need to purchase the material from them anyway.

"Google" fiberglass pipe insulation................and take your pick.

The Insulation I have used for chilled water lines is called York Flex tubing. It is a foam material that has an adhesive strip to close the insulation around the pipe or tubing.

Hi,

You can go for either glass wool or cerawool which will save allmost 80 to 90 % losses.

Actually almost any material that has a thermal conductance lower than copper pipe (or whatever pipe material is being used) will be effective for lagging the hot water pipes for domestic systems. Cloth or even rolled up newspaper can function in this regard. In fact, I wonder whether paper machie around a HW line might even work. In any case, for any given insulator, the thicker it is put on, the more effectvely it should reduce heat losses.

As some of the others have suggested. It depends on if it at home or industry, what temperature the pipe is and how large the pipe is. You can get the pre-slit foam insulators really cheap at any hardware store but I think they are only manufactured for the common pipe sizes that are found around the home. On Larger pipes you can use Heat tape, larger diameter flexible insulators, and fiberglass wool such as KAOWOOL brand. KaoWool works great for high temps and even insulates against fire. The larger and higher grade insulator you go with also increase your price.

hi. thanx for the advice. its a 3/4" GI pipe located at the rooftop coz we're using solar for our hot water system.