PG 6
2.
Frame Support Opening:
Drop a plumb bob to the center of the appliance’s
flue outlet and mark the center point on the ceiling. Refer to
Table 1
for specific
framing and clearance dimensions. Mark appropriate cutting lines on the ceiling
around the center point. Cut a square hole in the ceiling for the Ceiling Support
Box to pass through. Frame a level, square opening centered over the hole
which you have cut between the joists (Fig 3 & 4).
AllFuel HST Inc
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