Installation Instructions; Compliance Of The Masonry Fireplace - Osburn 2200 Owner's Manual

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2.2 Installation Instructions

Inspect the fireplace according to the safety information and fireplace requirements and have it cleaned and/or

upgraded if necessary.

Where the masonry fireplace opening is 6 ft

(0.56 m

) or larger, the hearth extension shall extend at least 20''

(508 mm) in front of the facing material and at least 12'' (305 mm) beyond each side of the fireplace opening.

Where the fireplace opening is less than 6 ft

(0.56 m

), the hearth extension shall extend at least 16'' (406 mm)

in front of the facing material and at least 8'' (203 mm) beyond each side of the fireplace opening.

Note that if you must modify the hearth extension to comply with these measures, depending on the size of the

masonry fireplace opening, the hearth extension must have a minimum of 4'' (102 mm ) thick (see Figure 2.5a

and 2.5b.)

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