Installation Guide
22
CHIMNEY MAINTENANCE 
1. Creosote and Soot: When wood is burned 
slowly, it produces tar and other organic 
vapors, which combine with expelled moisture 
to produce creosote. The creosote vapors 
condense in the relatively cool chimney ue 
of a slow-burning re. As a result, creosote 
residue accumulates on the ue lining. When 
ignited, this creosote makes an extremely hot 
re. 
2.  Access.  Chimneys must be installed so 
that access is provided for inspection and 
cleaning. 
3. When to Clean: The chimney should be 
inspected at least once every month during the 
heating season to determine if creosote or soot 
has built up. Check spark arrestor screens 
every 2 to 4 weeks. If creosote or soot has 
accumulated, it should be removed to reduce 
the risk of chimney re. 
4. How to Clean: Have your chimney cleaned 
by a certied professional chimney sweep if 
you have doubts about your ability to clean 
it. Use a plastic, wood, or steel brush. Do 
not use a brush that will scratch the stainless 
steel liner of your chimney. Scrub the spark 
arrestor with a wire brush. To remove the 
Chimney Cap for cleaning, unscrew the four 
screws that attach the cap’s support legs to 
the cap base. The Tee Cleanout Cap can be 
removed once the screws are unscrewed. 
Remember to replace the cap when you are 
nished cleaning the chimney. 
5. Coal: To reduce corrosion in chimneys 
where coal is burned, clean the chimney 
thoroughly within 48 hours of shutting down 
the stove for the season. 
6. Chemical Cleaners: Use chemical 
cleaners only as a last resort, and use only 
those which the manufacturer specically 
warrants as being non-corrosive to the 
chimney liner. DuraVent will assume no 
liability for damage resulting from the use of 
chemical cleaners. 
7. In Case of Fire: If a ue re occurs, close 
all appliance draft openings, and call your 
Fire Department. Do not use the chimney 
again, until it has been inspected for possible 
damage.
 8. Painting: To increase chimney life, coat 
all exterior metal parts, with the exception of 
the Chimney Cap with high temperature, rust 
proof paint. Wash the metal with a vinegar and 
water solution before painting. 
9. Creosote Formation: DuraVent assumes 
no liability for structural damage or roof 
contamination as the result of creosote 
formation. It is the owner’s responsibility 
to comply with inspection and cleaning 
requirements as described in these 
instructions. 










