The chart below uses a 10 1 ratio.
Chimney liner capacity chart.
Aluminum flexible chimney liner and gas vent connector installation instructions vent connector capacities f or m u l tipl e categ ory 1 appl iances connected to a com m on vent rigid connector siz ing inf orm ation nat nat nat nat.
For single category 1 appliance.
601 760 sq.
But chimney experts and draft measurements show that in a rectangular flue not all of the cross sectional area is equally effective in developing draft.
Flex king pro chimney liner 4x40 316ti 460 00.
Chimney vent capacity chart btu h and kw.
For example an 8 x 8 square nominal clay chimney flue tile liner has inside dimensions of 6 3 4 x 6 3 4.
A cross sectional area of chimney m 2 q volume of flue gases at chimney temperature m 3 s v velocity m s in general 1 kw boiler heat requires 1100 mm 2 of chimney area.
Chimneys and vents on an outside wall must be.
The liner size is the number one factor for the appliance to burn properly.
This can cause smoke to pour out of the stove and it can also cause gas and oil.
Use this tool to quickly calculate flue diameter or btu s for single or multiple category 1 appliance venting.
Undersized liners will not allow the appliance to vent properly.
A 10 1 ratio should be used for chimneys less than 25 feet in height and a 12 1 ratio for chimneys greater than 25 feet in height.
5in thickness 320 00.
Chimney vent capacity chart btu h and kw pdf.
Guide provided by rockford chimney.
Up to 600 sq.
Flex king 7 5x20 insert kit.
This is no job to cut corners though.
Stainless steel chimney liners while offering unrivaled customer service for the best buying experience.
10 6 general factors for chimney sizing graphs section 11 general design methods 11 1 the chimney design equation 11 2 the chimney design chart 11 3 design chart recommended factors 11 4 steps to use design chart figure 34 for sizing 11 5 example using design chart to find gas vent size section 12 checking vent system operation draft hood.
Chimney liner insulation kit 6in.
The vent connector should be routed to the vent utilizing the shortest possible route.
Capacity listed in the sizing tables must be reduced by 5.
The chimney liner should never be undersized for any appliance especially to accommodate insulation around the liner.
Doing the work as a d i y homeowner can save hundreds and possibly thousands of dollars.
761 942 sq.
Just muliplying these dimensions together 6 75 x 6 75 45 56 sq in.
For each additional elbow greater than 45 deg up to and including 90 deg the maximum capacity in the sizing tables must be reduced by 10.
