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Leaks

Drafting Problems

Oil Appliances

WoodStove Troubleshooter (Excel Spreadsheet)

 

Reduction %
Distance
     
 
Wall
Ceiling
Wall
Ceiling
3.5" Masonry, No Airspace
33%
-
24"
-
0.5" Insulation Board
w/ 1" Cerwool, No Airspace
50%
33%
18"
24"
24g SM w/ 1" Cerwool,
Reinforced w/ Airspace
66%
50%
12"
18"
3.5" Masonry w/ Airspace
66%
-
12"
-
24g SM w/ Airspace
66%
50%
12"
18"
0.5" Insulation Board w/ Airspace
66%
50%
12"
18"
24g SM w/ Airspace over 24g SM w/ Airspace
66%
50%
12"
18"
1" Cerwool between (2) 24g SM w/ Airspace
66%
50%
12"
18"
Clearance Reduction Systems

Here is just a little reminder chart for the basic levels of chimney inspection