DuraTech Adjustable Chimney Pipe

The DuraTech Adjustable Length is handy when an exact length of chimney is needed but the standard lengths of chimney do not combine to the needed length.  The Adjustable Length spans from a minimum of 14" to a maximum of 22".  The Adjustable Length can be used between any other Duratech chimney sections (straight pipe lengths, elbows, tees, etc.). The Adjustable Length is a telescoping section of chimney with both male and female sections. (See figure 1 above).  Within the male section there are 2" wide strips of insulation that can be removed to allow for a customized length (See figure 2 above)

Click below for complete installation instructions:

DuraTech Adjustable Length Installation Instruction Supplement

Application and Listing

 A DuraTech Adjustable Length is a listed component of the UL Listed DuraTech Chimney System (MH7399). Installation of the Adjustable Length must comply with both these supplementary installation instructions and the full DuraTech Chimney Installation Instructions. DuraTech Chimney system is listed with a 2” minimum clearance (air space) to combustibles. Always maintain a minimum of 2” clearance between chimney pipe and nearby combustibles. Failure to maintain the minimum 2” clearance to combustibles can result in a fire hazard. 

A MAJOR CAUSE OF CHIMNEY RELATED FIRES IS FAILURE TO MAINTAIN REQUIRED CLEARANCES (AIR SPACES) TO COMBUSTIBLE MATERIALS. IT IS OF THE UTMOST IMPORTANCE THAT THIS CHIMNEY BE INSTALLED ONLY IN ACCORDANCE WITH THESE INSTRUCTIONS.