How to Insulate a Cold Water Tank

HOW TO INSULATE A COLD WATER TANK - The last thing any homeowner wants is a burst pipe due to the pipes freezing. If your attic is well insulated then it’s important to insulate your water tank and the pipes around it. By insulating your attic this will prevent much heat from entering your attic space so it is essential that you properly insulate the water tank and pipes in your attic to prevent a potential disaster. In this guide we’ll show you how to insulate the water tank and pipes in the attic with this easy to follow, step-by-step, guide.

 

 Step 1

Locate the water tank and water pipes in your attic. Remember pipes are more vulnerable to freezing so special attention should be given to the pipe work.

 

 Step 2

If you have just finished insulating the attic floor you should not place insulation under the water tank. This will allow a small area to be heated by the rising warm air coming from your home. The heat loss is minimal and severs the purpose of preventing the water in the tank from freezing.

 

 Step 3

Take a visit to your local DIY Store or go Online and buy a Water Tank Insulation Jacket and a sufficient quantity of pipe lagging. You need to ensure a good fit so that the lagging sits tight around the piping. Measure the diameter of the pipe and buy pipe lagging for that particular diameter. All good stores will stock these.

 

 Step 4

Pipe lagging comes with a pre-cut slit along the length, so fitting it over the pipe work is just a case of opening up the slit and slotting it over the pipe.

 

 Step 5

At places where you need to cut the pipe lagging this should be done with a cut of 45 degrees – this is the same with any joints you may have to make for long runs of pipe work. Use insulation tape to cover the joints.

 

 Step 6

Pipe lagging normally comes with clips, so once you have finished lagging the pipes secure the lagging into place with the clips provided. If clips were not provided (make sure when buying) then buy some.

 

 Step 7

Fitting the water tank jacket is easy. Remove it from its packaging and unroll. You will find a set of instructions on the packaging for installation.

 

 Step 8

Wrapped the jacket around the water tank and secure it in place using the straps provided.

 

 Step 9

Adjust the jacket as needed to ensure you have a nice snug fit around the water tank.

 

 Step 10

Take the top part of the jacket onto the lid of the water tank and tuck this into the inside of the jacket.

 

 Acknowledgements: Video – WoodiesDIY.com

 

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  • vineyardflute

    Hi Graham,
    Good information and clear directions in the video. Interesting also that yuor heaters are placed in the attic, while mine is in the basement. Smae principles apply on regards to insulation. We have had pipes burst in the past, thankfully where they could be easily repaired. Wrapping them has made a huge difference and I would suggest doing that to everyone.
    Thanks for helping us to take care of our home, Dee

    • hometipster

      Hi Dee
      The water tank in the attic is a ‘Cold Water’ tank. The hot water is generally located somewhere else and we lag this with a jacket as well.

      Lagging the cold water tank reduces the chances of the water freezing.

      When you insulate an attic it will get even colder so all pipes and water tanks should be well insulate.

      Hope that helps and so glad you found the guide useful :)
      Graham