Vermont Casting DVT38 Vertical Through-the-Roof Applications, Use of Restrictor Plate, Chateau

Models: DVT38

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Vertical Through-the-Roof

Chateau™

Sealing firestop gaps with high temperature sealant will restrict cold air being drawn in around fire- place.

STEP 8

Guide the vent terminations 8” and 11” collars into their respective vent pipes. Double check that the vent pipes overlap the collars by 2” (50mm). Secure the termina- tion to the wall with screws provided and caulk around the wall plate to weatherproof. (Fig. 26) As an alterna- tive to screwing the termination directly to the wall you may also use expanding plugs or an approved exterior construction adhesive.

Support horizontal pipes every 3ʼ (91 cm) with metal pipe straps.

Check fireplace to make sure it is levelled and properly positioned.

FP1243a

Fig. 26 Secure termination to wall.

Vertical Through-the-Roof

Applications

Use of Restrictor Plate

for Vertical Venting Applications

The primary purpose for the vent restrictor is to regain flame height under certain venting conditions as outlined below.

NOTE: The joints of the inner pipe (flue pipe) must be taped with 550°F or higher temperature metal adhesive tape that meets the requirements of F.A.R. 25.853(a) High temperature sealant milpack or stove cement

of 550°F or higher could be used instead. The joints of The outer pipe (fresh air pipe) must be taped with 315°F or higher temperature metal adhesive tape or the use of high temperature milpack or stove cement would be applicable. When using the unitized 30°, 45° or 90° elbows, apply 1/4” bead of high temperature, 550°F or higher, sealant (milpack or stove cement) to the joint of the inner pipe (flue pipe) and the straight section as it is

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impossible to be taped. The outer pipe must be taped with 315°F high temperature metal adhesive tape for proper sealing.

For vertically venting either propane or natural gas units, with vertical vent heights of 12ʼ (3.7m) or greater, (measured from the top of the flue collar) the restrictor plate as supplied with this unit should be used. (Fig.

27)Also, the fresh air restrictor plate could be adjusted according to your vent height. (Fig. 27) Refer to Pages 20 & 21, Figures 36 & 38 for restrictor plate installation and fresh air restrictor plate adjustment.

DVT44 - Natural or LP

12'

 

(3.7m)

Use 6���"

or Greater

DVT38 - Natural or LP

 

'X'

Use 5���"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fresh Air Restrictor Plate

XSetting

30ʼ to 40ʼ

#1

20ʼ to 29ʼ

#2

12ʼ to 19ʼ

#3

FP1409

Fig. 27 Restrictor plate use in straight up installation.

For vertical venting configurations that include a minimum vertical rise of 12ʼ (3.7m) and a maximum horizontal offset of 10ʼ (3m) the 4¹⁄₂” restrictor plate supplied with this unit should be used. The fresh air restrictor plate could be adjusted to the setting #3 (DVT44 Only). (Fig. 28) Refer to Pages 20 & 21, Figures 36 & 38 for restrictor plate installation and fresh air restrictor plate adjustment.

10' (3m) Max. Use of Restrictor Plate

Natural or LP

Use 4���"

12' (3.7m) Min. Rise

for Vertical Venting Applications Fresh Air Restrictor Plate Setting = None or #3 Only

FP1410

Fig. 28 Restrictor plate use with horizontal offset.

20006081

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Vermont Casting DVT38 Vertical Through-the-Roof Applications, Use of Restrictor Plate, for Vertical Venting Applications