STEP 7
Apply high temperature sealant to 4” (102 mm) and 7” (178 mm) collars or the termination one inch away from the end. Guide the vent termination’s 4” and 7” collars into their respective vent pipes. Double check that the vent pipes overlap the collars by 2” (51 mm). Secure the termination to the wall with screws provided and caulk around the wall plate to weatherproof. As an alterna- tive to screwing the termination directly to the wall, you may also use expanding plugs or an approved exterior construction adhesive. You may also attach the termina- tion with screws through the inner body into the 4” vent pipe, however for this method, you must extend the 4” pipe approximately 6” (152 mm) beyond the outer face of the wall.
Support horizontal pipes every 36” (914 mm) with metal pipe straps.
Brookhaven Direct Vent Gas Fireplace
STEP 4
Install the 4” (102 mm) flex vent pipe to the appliance collar as described on Page 13. Secure the end with the first spring 6³⁄₄” (172 mm) from the flex pipe end to the unit.
STEP 5
Slide the 7” (178 mm) flex vent pipe over the 4” flex vent pipe and secure 7” collar as described on Page 14.
STEP 6
Bend the flex pipe horizontal so the bottom of the hori- zontal pipe measures 6¹⁄₂” (165 mm) from the top of the unit immediately after the 90° formation. (Fig. 20) Be sure to follow the 1/2” (13 mm) rise in a 12” (305 mm) horizontal run rule.
STEP 7
Install the 4” flex then 7” flex to the termination.
Vertical Sidewall Installation
Flex Vent Pipe
NOTE: The 40” (1016 mm) flex vent is used for 90° off the top of the unit then out the back wall.
Follow Steps 1 and 2 on Page 11.
STEP 3
Install the four (4) spacer springs on the 4” flex vent pipe. When installing the spacer springs around the 4” pipe, stretch the spring to approximately 15” (381 mm), wrap the spring around the pipe and interlock the ends of the spacer spring approximately 2” (51 mm). Mea- sure 6³⁄₄” (172 mm) from the end of the pipe. Place the next spring 5” (127 mm) from the previously installed spring. Place the next spring 6” (152 mm) from the last spring. Finally, place the last spring 12” (305 mm) from the last spring installed. (Fig. 19)
4” Flex Vent Pipe
12"
(305mm)
Spacer Spring
6"
(152mm)
5"
(127mm)
6���"
(172mm)
FP1474
Fig. 19 Install spacer springs.
6���" (165mm)
FP1475
Fig. 20 Bend flex vent at 90° so horizontal portion is 6¹⁄₂” (165 mm) off top of unit.
Below Grade Installations
When it is not possible to meet the required vent ter- minal clearances of 12” (305 mm) above grade level a snorkel kit is recommended. This allows installation depth of down to 7” (178 mm) below grade level. The 7” is measured from the center of the horizontal vent pipe as it penetrates through the wall.
Ensure the sidewall venting clearances are observed. If venting system is installed below ground, we recom- mend a window well with adequate and proper drainage to be installed around the termination.
If installing a snorkel, a minimum 24” (610 mm) vertical rise is necessary. The maximum horizontal run with the 24” vertical pipe is 36” (914 mm). This measurement is taken from the collar of the fireplace (or transition elbow) to the face of the exterior wall. See the Sidewall Venting Graph for extended horizontal run if the vertical exceeds 24” (610 mm).
1.Establish vent hole through the wall. (Fig. 15)
2.Remove soil to a depth of approximately 16”
(406 mm) below base of snorkel. Install window well (not supplied). Refill hole with 12” (305 mm) of coarse gravel leaving a clearance of approximately 4” (102 mm) below snorkel. (Fig. 21)
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