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| Pipe area change for woodstove |
DILLIGAS |
10/18/05 |
I am installing a wood stove into an existing chimney in my living room. The pipe that is being installed in the chimney is a double wall flue - 8 inches.
The wood stove has an outlet at the top that elliptical 9.5 inches by 6.5 inches that changes to a 8 inch circular pipe.
To get through the damper without removing or changing things, I have to install the pipe to fit through the 6.5 inch opening.
I have worked out the math, I think, is this correct:
8-inch duct area = 50.2655 inches 2
9.5 x 6.5-inch duct area = 48.4983 inches 2
Difference= -1.7672
Round formula - ð(pi) r2 (8-inch pipe radius 4-inch)
Ellipse Formula - ð(pi) r1 r2 (8-inch pipe compressed to an Ellipse pipe is 6.5 x 9.5-inch)
Round pipe is 8 inches
Compress pipe to fit through a 6.5-inch opening to connect to another 8-inch pipe
Thanks,
DILLIGAS
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