Insulating a water heater flue

Question Icon
Posted by: from Peterborough
3/28/2012 at 4:59:10 PM

The water heater flue going through the ceiling into the attic is in a large square shaft, wide open into the attic. What is the proper way of insulating this space? Can I use the mineral insulation (Rocksul) to stuff around the flue?

Thanks for your help.

User Icon
Date/Time3/28/2012 at 7:42:35 PM

Mineral wool insulation is usually used, however I would check with the manufacturer of the flue pipeing and the heater first, to see what they recomend and allow. Better safe than sorry.

Search the TrustedPros directory and discover the best contractors in your area.

Find your home service pro
Great renovations start with a great contractor.

Since 2004, TrustedPros has been helping homeowners find the right contractor for their home improvements and repairs.

Post Your Project

Within hours you'll be comparing offers from top-rated professionals. It's free to post and you're under no obligation to hire.

Trustedpros Inc. does not warrant the accuracy, completeness, safety, legality or usefulness of any Content, or Whether Content is Current and up-to-date, and TrustedPros Inc. Shall have no liability whatsoever with respect to your use or reliance upon any content or for content being removed or otherwise ceasing to be available. Please refer to the terms and conditions of use of this websites for more details.

Get Free Estimates

Post your project and compare offers from top-rated pros.