Venting Fireplace - Empire Comfort Systems DVLT series Installation Instructions And Owner's Manual

Cutting the Hole
After the fireplace has been positioned in its permanent location,
the hole through the exterior wall of the house can be cut. This hole
must be 12" (305mm) high x 10" (254mm) wide with its center line
determined by the amount of vertical rise and horizontal run of the
termination. See Figure 29.
10-3/8"
(263.5mm)
12-3/8"
(314.3mm)
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Page 18

VENTING FIREPLACE

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Figure 29
When locating the hole it must be noted that the bottom of the cap
must be 12" (305mm) above the ground level, and top of the cap
must be no less than 18" (457mm) below a combustible projection,
and no closer than 9" (229mm) to any wall running parallel to vent
termination. See Figure 30.
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Figure 30
31259-3-0114