Figure - Mendota D30 Installation And Operating Instructions Manual

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 3-26 Single ZC Flue Cap
Figure 3-29 Metal Cap on Clay Liner
Chimney Top
For installation of this Insert's vent cap with chimneys that have an existing metal, stone or concrete cap
(Figure 3-29, Figure 3-30, Figure
recirculation and ghosting flames problems. Always use full size vent caps and allow a minimum 3"
clearance from vent cap top to the chimney c ap. For wider chimney caps and slabs, greater than 16" wide,
increase the clearance above the vent cap to 6" minimum. If necessary, raise the slab to supply the required
clearance.
85-03-01071
Figure 3-27 Clay Liner Cover
Figure 3-30 Stone Cap Chimney Top
3-31), Do Not use "low profile" vent caps. They are vulnerable to exhaust
D30 DEEP TIMBER
Figure 3-28 Open Top Clay Liner
Figure 3-31 Concrete Cap Chimney
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