How to make a floating insulation blanket for a hot tub

Written by cameron easey
  • Share
  • Tweet
  • Share
  • Pin
  • Email
How to make a floating insulation blanket for a hot tub
A floating insulation blanket can be made for a hot tub (pool spa 1 image by Aaron Kohr from

Hot tubs that are installed outdoors typically require a cover to keep the water warm when the hot tub is not in use. If you do not want use a hard cover with the hot tub you can install a floating insulation blanket to help keep the water warm. A hot tub floating insulation blanket can be purchased specifically for your hot tub or you can make one from an old pool cover.

Skill level:

Things you need

  • Tape measure
  • Pool cover
  • Tape measure
  • Felt tip marker
  • Scissors

Show MoreHide


  1. 1

    Measure the width and length of the hot tub with the tape measure.

  2. 2

    Spread the old pool cover on the ground and transfer the measurements to the cover. Cut the cover to the dimensions of your hot tub with the scissors.

  3. 3

    Place the pool cover so that it is centred over the hot tub. Trace around the inside edge of the hot tub with the felt tip marker.

  4. 4

    Take the cover off and then cut around the line you made in step 3 with the scissors. This will trim the pool cover to the inside shape of your hot tub.

  5. 5

    Place the pool cover back on the hot tub to see how much more you will need to trim off so that it will float on the water.

  6. 6

    Cut a small amount from the outer edge of the cover and then test the fit again. Repeat this step until the cover fits inside the hot tub and floats on the water.

Tips and warnings

  • If you cut too much material with the scissors the blanket will not completely cover the water in the hot tub.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.