Continental Fireplaces CB46NTR, Installation And Operating Instructions Manual

Page: 17 / 144

17
W415-1616 / C / 09.20.17
EN
3.8 TOP EXIT VERTICAL TERMINATION
17
W415-1616 / B / 06.13.16
EN
16.1B
Simple venting confi guration (only one 90° elbow)
90°
90°
90°
V
1
V
2
H
1
H
2
0
2.5
(0.8)
5
(1.5)
7.5
(2.3)
10
(3.1)
12.5
(3.8)
15
(4.6)
40 (12.2)
10 (3.1)
20 (6.1)
30 (9.1)
17.5
(5.3)
20
(6.1)
39 (11.9)
REQUIRED
VERTICAL
RISE IN FEET
(METERS) V
T
HORIZONTAL VENT RUN PLUS OFFSET IN
FEET (METERS) H
T
(h
T
) < (v
T
)
for vent confi gurations requiring more than one 90° elbow, the following formulas apply:
formula 1: h
T
< v
T
formula 2: h
T
+ v
T
< 40 feet (12.2m)
Example:
v
1
= 3 FT (0.9m)
v
2
= 8 FT (2.4m)
v
T
= v
1
+ v
2
= 3 FT (0.9m ) + 8 FT (2.4m) = 11 FT (3.4m)
h
1
= 2.5 FT (0.8m)
h
2
= 2 FT (0.6m)
h
R
= h
1
+ h
2
= 2.5 FT (0.8m) + 2 FT (0.6m) = 4.5 FT (1.4m)
h
O
= .03 (three 90° elbows - 90°) = .03 (270° - 90°) = 5.4 FT (1.7m)
h
T
= h
R
+ h
O
= 4.5 FT (1.4m) + 5.4 FT (1.6m) = 9.9 FT (3m)
h
T
+ v
T
= 9.9 FT (3m) + 11 FT (3.4m) = 20.9 FT (6.4m)
formula 1: h
T
< v
T
9.9 FT (3m) < 11 FT (3.4m)
formula 2: h
T
+ v
T
< 40 fT (12.2m)
20.9 FT (6.4m) < 40 FT (12.2m)
Since both formulas are met, this vent confi guration is acceptable.
See graph to determine the required vertical
rise V
T
for the required horizontal run H
T
.
The shaded area within the lines represents
acceptable values for h
T
and v
T
90°
90°
90°
V
1
V
2
H
1
H
2
0
2.5
(0.8)
5
(1.5)
7.5
(2.3)
10
(3.1)
12.5
(3.8)
15
(4.6)
40 (12.2)
10 (3.1)
20 (6.1)
30 (9.1)
17.5
(5.3)
20
(6.1)
39 (11.9)
REQUIRED
VERTICAL
RISE IN FEET
(METERS) V
T
HORIZONTAL VENT RUN PLUS OFFSET IN
FEET (METERS)
H
T
90°
90°
90°
V
1
V
2
H
1
H
2
0
2.5
(0.8)
5
(1.5)
7.5
(2.3)
10
(3.1)
12.5
(3.8)
15
(4.6)
40 (12.2)
10 (3.1)
20 (6.1)
30 (9.1)
17.5
(5.3)
20
(6.1)
39 (11.9)
REQUIRED
VERTICAL
RISE IN FEET
(METERS) V
T
HORIZONTAL VENT RUN PLUS OFFSET IN
FEET (METERS)
H
T
3.8 TOP ExiT vERTiCAL TERMiNATiON