Technical Information


EXCELiner is tested and listed by Intertek Testing Services to the following standards:

ULC S-635 - Standard for relining existing masonry chimneys in Canada.

ULC S-640 - Standard for liners for new masonry chimneys in Canada.

UL 1777 - Standard for liners in new and existing masonry chimneys in the USA.

The installation requirements vary depending on which Standard your installation must meet, particularly with respect to the requirements for insulation and clearance from the liner. You must insure that your EXCELiner is installed in accordance with your local building codes.

EXCELiner is available in 5”, 5.5", 6”, 7” and 8” diameters

EXCELiner is certified for installation in combination with all certified brands of flexible chimney liner.


EXCELiner is certified as a chimney liner for use on appliances that burn:

• Wood

• Oil

• Natural or LP Gas

Allowable Flue Gas Temperatures

Max Continuous 650°C (1200°F)

Brief Forced Firing 925°C (1700°F)

Tested To 1150°C (2100°F)

Clearance to Combustible Materials

The clearance between EXCELiner and surrounding combustible and noncombustible materials varies with the

type of installation. Please refer to the installation instructions for specific details for your application.


Single wall:

.016” or .025” stainless steel.


Continuous seam welded.


Optional (required for some applications) foil backed ceramic liner.