D. Clearances to Combustible Materials Requirements
for J2001T Insert - Vertical Venting Using an Existing Chimney
Page 10
1998-2006 Edition
Clearance to Shelf of Mantle
When using an existing chimney to install the vent system for the pellet stove, be sure to line the entire length
of the chimney with three (3) inch or four (4) inch (76mm or 102mm) listed galvanized or stainless steel flex
pipe. Use four (4) inch diameter (102mm) flex pipe if the chimney has a prior history of bad draft or if you
have a chimney exceeding eleven (11) feet (3.4m) in height.
Contact local chimney installation experts for the proper procedures that are required to install a flexible vent
system for your particular vent configuration. Remember to clean the existing fireplace cavity and chimney
pipe of all soot and creosote deposits before attempting to install the flexible vent system.
PARTS LIST
1. 3" or 4" (76mm or 102mm) Stainless Steel Flex Pipe
2. 1-5/8" ID (41mm) Rigid or Flex Hose
3. Air Intake end cap / rodent screen
4. Existing Flashing
5. Existing Storm Collar
6. 3" or 4" (76mm or 102mm) Rain Cap
7. Existing Vent Pipe.
Note: If the vertical length of the existing chimney is greater than 11 feet (3.4m),
use 4" (102mm) Stainless Steel Flex Pipe to line the entire length of the chimney.
FIGURE 12: Relining an existing chimney
Installation in Existing Fireplace
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