85-03-01060-D
FV44i Décor Gen 3
Page
39
3.2.20.7
Types of Chimney Tops and Vent Caps
Chimney tops vary in shape and size and configuration. The vent cap selected for installation will require some modification to fit
various chimney top types. Consult with your vent supplier.
Figure 3-41 Single ZC Flue Cap
Figure 3-42 Clay Liner Cover
Figure 3-43 Open Top Clay Liner
Figure 3-44 Metal Cap on Clay Liner
Chimney Top
Figure 3-45 Stone Cap Chimney Top
Figure 3-46 Concrete Cap Chimney
Top
For installation of this Insert
’s vent cap with chimneys that have an e
xisting metal, stone or concrete cap
(
Figure 3 -44, Figure 3 -45 , Figure 3 -46
), Do Not use “
low profile
” vent caps. They are vulnerable to exhaust
reci
rculation and ghosting flames problems. Always use full size vent caps and allow a minimum 3” clearance
from vent cap top to the ch imney cap. For wider chimney caps and slabs, greater than 1 6
” wide, increase the
clearance above the vent cap to 6” minimum.
If necessary, raise the slab to supply the required clearance.
