Hearth & Home Technologies CASTILE-GAS-PMH 用户手册

September 1, 2008

Page  11

Quadra-Fire · Castile Gas Stove · 7023-111E

1.  Measure the vertical distance from the top of appliance 

to the center of the 90° elbow. On the graph below, draw 
a horizontal line from that measurement on the vertical 
axis across until it intersects with the slanted  line.

2.  From the point of this intersection, draw a vertical line to 

the bottom of the graph.

3.  The point at which this line meets the bottom line of the 

graph is the maximum length of the horizontal run. 

EXAMPLE 1: If the vertical dimension from the center line of 
the flue vent to the center of the 90° elbow is 7 ft. (2.13 m), 
the horizontal run to the outer wall flange must not exceed 
16 ft. (5m).

EXAMPLE 2: If the vertical dimension from the center line of 
the flue vent is 21 ft. (6m), the horizontal run to the outer wall 
flange must not exceed 12 ft. 10 in. (4m).

4.  Each 90° elbow is equivalent to 3 ft. (914mm) of vent 

pipe and each 45° elbow is equivalent to 1 ft. (305mm) 
of vent pipe, and must be subtracted from vent pipe 
run. A single vertical to horizontal 90° elbow is already 
calculated into the allowable 20 ft. (6m) run. Each 
additional 90° elbow reduces the maximum horizontal 
distance by 3 ft. (914mm).

EXAMPLE: The use of 3 elbows would reduce the allowable 
horizontal run to 9 ft. (3 -1 =  2 elbows x 3 ft. = 6 ft.; 20 ft. max. 
- 6 ft. = 14 ft. max.).

 

  The maximum horizontal vent run is 20 ft (6m) when 

the vertical vent rise is 10 ft. (3m).

 

 

The minimum horizontal vent run is 6 in. (152mm).

 

 

Horizontal sections require a 1/4 in. (6mm) rise for 

every 12 in. (305 mm) of horizontal travel.

 

  Exterior Vent Diameter = 6-5/8 in. (168mm); Inner 

Vent Diameter = 4 in. (102mm).

 

  Horizontal sections require noncombustible support 

every 3 ft. (914mm), e.g. wall straps.

For any vertical termination a minimum of 6 ft. (2m)  

vertical must be used.
 

Minimum vertical from appliance top before adding 

an elbow is 2 in. (51mm).

NOTE: In the Commonwealth of 
Massachusetts, the word damper 
shall be replaced with the words flue 
restrictor.

40 ft. Maximum Vertical 

HHW2

Example 1

Example 2

2'           4'          6 '          8'          10'         12'        14'   15'  16'  17'  18'  19'  20'

2'

4'

6'

8'

10'

12

'

14'

16'

18'

20'

22'

24'

26'

28'

30'

32'

34'

35'

36'

37'

38'

39'

40'

Part #SLK-991DA

3 ft. (91 cm) Maximum Horizontal run with no 
vertical pipe and with 1/4 in. (6.35 mm) rise per 
foot. Must use Snorkel cap.

6 ft. Min. Vertical 
Termination

For rear vent or top of 
stove for top vent.

6 in. Min. starter pipe