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Figure 4
Exhaust Venting Under The Eaves
Note A: Double wall PL vent requires a minimum of three inch (3") clearance to combustibles
and the use of listed wall thimble, fire stop or roof flashing where applicable.
1. When terminating the exhaust system under the house eaves, (Figure 4) the end of the vent
pipe system must be at least twelve inches (12") from the wall and 24" below the eave, a 90
degree (G) and a 45 degree elbow may be used (H).
2. When extending through the roof, (Figure 5) install a PL vent fire stop (I) in the ceiling or in
the eaves if the eaves are boxed in. Install roof flashing (J) and a storm collar (K). Extend the
PL vent at least twenty-four inches (24") above the roof and terminate with a PL listed rain
cap (L).
Exhaust Venting Through Ceiling and Roof
Prescott Series Installation Manual
Page 10
Figure 5
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