Vermont Casting BHDR36 installation instructions 190mm

REAR WALL INSTALLATIONS

Minimum clearance between vent pipes and combustible materials in one (1") inch (25 mm) on sides and bottom and two (2") inch (50 mm) on top.

STEP 1

Locate vent opening on wall.

Vent Opening —

Combustible Wall

(240mm) 9-3/8"

10-3/8" (265mm)

(framing detail)

Vent Opening —

Noncombustible Wall

Combustible Walls. Cut a 10-3/8"H x 9-3/8"W (265mm x 240mm) hole through the exterior wall and frame as shown. Fig. 40.

Non-Combustible Walls: Hole opening must be 7.5" (190mm) in diameter. To locate hole centre consult with appropriate fireplace specifications, page 4.

STEP 2

Measure wall thickness and cut adjustable zero clearance sleeve parts to proper length (MAXIMUM 12"). Adjust sleeve to maximum (10-3/8 x 9-3/8). and attach to firestop with #8 sheet metal screws (supplied). (Fig. 41) Install firestop assembly.

STEP 3

Measure from fireplace collar or elbow face to face of outside wall (add 1-1/2" for vent pipe overlap). Mark pipes and cut to length. It is very important that the two pipes are flush with the outside wall once the fireplace is in its final location.

STEP 4

If the fireplace has crimped ends on the inner and outer flue collars, apply a bead of high temperature sealant and using the appropriate venting component(s) attach to the fire- place with three (3) screws. If the fireplace has no crimps on the end of the flue collars, the use of high temperature sealant is not necessary just secure the component with three (3) screws. Both pipes must be on a level plane. Fig. 42.

STEP 5

Guide the vent termination 4" collar into the 4" pipe then the 7" collar into the 7" pipe. Do not force the venting into position. If the pipes do not line up with the termination collars, disassemble elbows or pipes and reattach to the fireplace collar. (Fig. 42)

STEP 6

Recheck the fireplace to make sure that it is levelled, properly positioned, and nailed or screwed to the floor.

If applied, the fireplaces adjustable frame drywall strips (nailing flanges) should be fastened. See "Framing & Finishing.