temco-tool dv1000n-p Manuel D’Utilisation

12

T182
sealant
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NOTE: Apply sealant “Mill-Pac” to inner pipe and “Mill-Pac” or high 
temperature silicone sealant to outer pipe. Sealant should be ap-
plied at every joint in the vent system including at the fireplace and 
at the vent terminal.

T182

Fig. 13  Apply sealant at every joint in vent system.

H

12

x

T183

typical straight up 

installation

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Gas Vent

Vent Cap

Lowest Discharge Opening

Roof Pitch X/12

H (Min.) - Minimum height 

from roof to lowest discharge 

opening

T183

 

 

Flat to 6/12 

12”  (305 mm)

 

6/12 to 7/12 

15”  (381 mm)

 

Over 7/12 to 8/12 

18”  (457 mm)

 

Over 8/12 to 16/12 

24”   (610 mm)

 

Over 16/12 to 21/12 

36”  (914 mm)

Fig. 14  Vertical termination location.

Figures 15 and 16 show examples of horizontal termi-
nation arrangements using two 90° elbows (Rigid Vent).
NOTE:
1.  A maximum of two 90° elbows are permitted.
2.  A minimum of 10’ (3 m) vertical from base of unit is 

required if two 90° elbows are used.

3.  Minimum distance between elbows is 2’ (610 mm).
4.  Determine the permitted range of horizontal ter-

mination arrangement by using chart above and 
deducting 3’ (914 mm) from the maximum horizontal 
distance for the second 90° elbow.

VO584-100

Vent Opening

2/99   djt

9³⁄₄”

(248 mm)

10³⁄₄”

(273 mm)

5⁷⁄₈”

(149 mm)

4⁷⁄₈”

(124 mm)

Fireplace Hearth

Framing Detail

Rnd.

8” Dia.

(203 mm)

Min.

Fireplace Hearth

VO584-100

Fig. 15  Locate vent opening on wall.

33"

(838mm)

Minimu

m

53" (1346m

m)

Maximum

28' (8.5m)

2' (610mm)

Minimum

B

12" (305mm)

Minimum

A

10' (3m)

Minimum

If length "B" is increased,

length "A" must be decreased

by a corresponding amount

T184

sidewall venting

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A vent guard should be used 

whenever the termination is 

lower than the specified mini-

mum or as per local codes.

T184

Fig. 16  Horizontal vent run.

•  Flex vent shall use the spacer springs as included 

every foot to ensure proper vent operation.

•  The 4” x 7” flex system may be used for all sidewall 

applications and vertical venting up to 35’ (10.7 m).

•  Flex shall be properly supported so there are no 

sags in the system. Supports must be used at least 
every 24” (610 mm) on horizontal section and every 
36” (914 mm) on vertical. Wire or metal stripping 
may be used to support the venting.

•  For 4” x 7” flex, the 7” flex has an outside diameter 

of 7¹⁄₂” (191 mm) and if installed in a chase the in-
side diameter of the chase should be 9¹⁄₂” (241 mm) 
minimum.