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Minimum inside vertical clearances, Class a chimney retrofit – Napoleon Fireplaces NPI40 User Manual

Page 17

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W415-0616 / C / 06.04.08

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MINIMUM INSIDE VERTICAL CLEARANCES

Outside air (Recommended)

(Installation showing inlet of out-

side air in ventilated crawl space)

Ceiling Support

Vent must maintain 3”

clearance to combus-

tibles.

Vertical Cap

Roof Flashing

Storm Collar

Floor Protection

3”

2”

Class A Chimney

Ceiling Support

Outside air (Recommended)

(Installation showing inlet of out-

side air in ventilated crawl space)

Vent must maintain 3”

clearance to combus-

tibles.

Roof Flashing

Storm Collar

Floor Protection

3”

2”

Vertical Cap

CLASS A CHIMNEY RETROFIT

Figure 15

Figure 16

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