Archgard 10-1800P User Manual
Page 24
Chalet 1800
24
RECOMMENDED
MINIMUM CHIMNEY
HEIGHTS
The chimney must be at least 3 ft. (.9m) higher than the highest point where it passes through the roof and
at least 2 ft. (.6m) higher than the highest part of the roof or structure within 10 ft. (3m) of the chimney,
measured horizontally. These are code requirements and cannot guarantee a suitable draft. We rec-
ommend using a minimum total system height of 12 ft. (3.6m), measured from the flue collar to the bottom of
the chimney cap)
# OF ELBOWS
ELEVATION (FT)
ABOVE SEA
LEVEL
0
2 x 15
o
4 x 15
o
o
2 x 30
o
4 x 30
o
2 x 45
o
4 x 45
o
0-1000
12.0
13.0
14.0
15.0
18.0
16.0
20.0
1000-2000
12.5
13.5
14.5
15.5
19.0
16.5
21.0
2000-3000
13.0
14.0
15.0
16.0
19.5
17.0
21.5
3000-4000
13.5
14.5
15.5
17.0
20.0
18.0
22.5
4000-5000
14.0
15.0
16.0
17.5
21.0
18.5
23.0
5000-6000
14.5
15.5
17.0
18.0
21.5
19.0
24.0
6000-7000
15.0
16.0
17.5
18.5
22.5
20.0
25.0
7000-8000
15.5
16.5
18.0
19.0
23.0
20.5
25.5
8000-9000
16.0
17.0
18.5
20.0
24.0
21.0
26.5
9000-10000
16.5
17.5
19.0
20.5
24.5
22.0
27.0
NOTE: No more than two offsets (four elbows) allowed. Two 45
o
elbows equal one 90
o
elbow.
(Measured from the top of the unit)
Recommended Flue Height
Elevation
Example a)
Example b)
0'
18'
21'
1000'
18.72'
21.84'
2000'
19.44'
22.68'
5000'
21.60'
25.20'
1) At sea level minimum height is 12'
straight, off the top of the appliance.
2) Add the following vertical height to
compensate for:
45 deg. elbow = 1 ft.
90 deg. elbow = 2 ft.
"T" = 3 ft.
Each foot of horizontal run = 2 ft.
3) Add 4% overall for each 1000' above
sea level.
Examples:
a) 1-1/2 ft. of horizontal run = 3 ft. one
"T" = 3 ft.
Total Addition (at sea level) = 6 ft.
b) One 90 deg. elbow = 2 ft.
2 ft. of horizontal run = 4 ft.
one "T" = 3 ft.
Total Addition (at sea level) = 9 ft.