Hearth and Home Technologies TIARAI-CES, TIARA II-B, TIARAI-BR-B How to Use the Vent Graph

D. How to Use the Vent Graph E. Venting Guidelines

NOTE: IF YOUR INSTALLATION FALLS WITHIN A SHADED AREA ON THE GRAPH, THE DAMPER MUST BE USED.* SEE INFORMATION ON DAMPER ADJUSTMENT ON PAGE 31.

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

1. Measure the 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.

•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).

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

the bottom of the graph.

•

Horizontal sections require noncombustible support

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

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

graph is the maximum length of the horizontal run.

• For any

vertical

termination

a minimum of 6 ft. (2m)

Example 1: If the vertical dimension from the center line of

vertical must be used.

the flue vent to the center of the 90° elbow is 7 ft. (2m), the

EXCEPTIONS FOR HORIZONTAL INSTALLATIONS:

horizontal run to the outer wall flange must not exceed 16

*When installing the Tiara I-B or Tiara II-B in a rear vent

ft. (5m).

.

configuration with no vertical rise, a Snorkel Kit must be

Example 2: If the vertical dimension from the center line of

used. Refer to venting components.

the flue vent is 21 ft. (6m), the horizontal run to the outer wall

*The maximum horizontal vent run is 3 ft. (914mm).

flange must not exceed 12 ft. 10 in. (4m).

*The maximum horizontal vent run with a 45° elbow is 2 ft.

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

(609mm).

pipe and each 45° elbow is equivalent to 1 ft. (305mm)

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

of vent pipe, and must be subtracted from the vent pipe

run. A single horizontal to vertical 90° elbow is already

calculated into

the

allowable

20 ft. (6m) run. Each additional

90°

elbow

reduces the

Part #SLK-991DA

maximum horizontal distance

40 ft. (12m)

40'

by 3 ft. (914mm).

MaximumVertical

39'

38'

37'

Example:

The use of 3 elbows

36'

35'

34'

would

reduce

the

allowable

32'

horizontal run to 9 ft. (3 -1 =

30'

28'

2 elbows x 3 ft. = 6 ft.; 20 ft.

Damper position

26'

max. - 6 ft. = 14 ft. max.).

more CLOSED in

24'

this area

Example 2

22'

20'

18'

VERTICAL DISTANCE

16'

FROM APPLIANCETO 90°

14'

ELBOW

Damper position

12'

more OPEN in

10'

this area

Example 1

8'

SLK-01TRD

6'

NO Damper in

4'

this area

2'

6 ft. (2m) MinimumVerticalTermination

2'

4' 6 '

8' 10' 12'

14' 15' 16' 17' 18' 19' 20'

3 ft. (914mm)MaximumHorizontalrun with no verticalpipe

C

and with 1/4 in. (6mm) rise per foot. Must use Snorkel cap.

L

CL For rear vent or top of

stove for top vent.

6 in. (152mm) Minimum starter pipe

Figure 5.2

Page 12 Heat & Glo · Tiara I B & Tiara II B · 7010-149M August 1, 2008