Product Description

This is an official ICC Excel Chimney Offset Support. They are shipped in their original packaging, it is not an aftermarket equivalent.

ICC Excel Insulated Thimble Extension Description:

• The thimble extension is used to increase the length of the thimble, allowing it to accommodate thicker walls when installing a chimney or vent pipe through a wall.

ICC Part Number: 

• 5″ – XLL5ITHE
• 6″ – XLL6ITHE
• 7″ – XLL7ITHE
• 8″ – XLL8ITHE

EXCEL Chimney Features

• EXCEL is tested and listed to the ULC S-629 chimney standard. The ULC standard is generally considered the toughest residential chimney standard in the world.
• EXCEL is the only 1 inch wall insulated chimney to pass the ULC standard.
• EXCEL’s unique thermoplus insulation has an extremely high insulating value that helps to keep flue gasses hot.
• EXCEL is the lightest weight insulated chimney of its kind on the market making it easier to install.
• EXCEL incorporates continuous blanket insulation into a design which eliminates couplings between lengths.
• Check out the entire Excel Catalog
• Along with a great product, comes a great warranty!

The EXCEL insulated stainless steel chimney is suitable for use on appliances that burn wood, oil, coal, gas and charcoal and comes in 6, 7, 8, 10″ and 12″ diameters.

This genuine ICC Excel Insulated Thimble Extension is in stock ready to ship