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 non-combustible materials varies with the type of installation. Please refer to the installation instructions for specific details for your application. 

Construction
Single wall: .016" or .025" stainless steel (all tees are heavy gauge .025")
Seam: Continuous seam welded
Insulation: Optional (required for some applications) Foil backed ceramic liner

Designed to increase or reduce the size of an EXCELiner to accommodate a range of flue sizes, appliances and installations. 
Note:  Increasing or decreasing chimney size can have a negative impact of chimney performance and safety.  Use these components only when appropriate.