A fireplace can trim down heating plant bills and add a romantic touch to your home or business enterprise . They can also make a flame fortune if not built correctly . For this reason , the Ohio Building Codes outline rules and regulating that must be followed when installing a hearth . Most fireplace will fall under the family of masonry open fireplace as outlined in code 2111.1 , which defines masonry hearth as any open fireplace that is fabricate of masonry or concrete .
Step 1
harmonize to Ohio edifice codification 2111.2 , footing and foundations for hearth and chimneys must be composed of concrete or solid Freemasonry . This concrete or masonry must be at least 12 inches thick and extend at least 6 inches past the font of the open fireplace or fireplace initiation wall . This guideline applies to all sides . These footings must be installed on undisturbed and natural earth or be filled below frost depth . If icing is not a risk , the footing must be no less than 12 in under ruined grade .
Seismic Anchorage
Code 2111.4 pertains to the seismal anchorage ground of family D masonry and concrete chimney . This code states that all category D chimney must be anchor to the ceiling , cap line , or at each floor at more than 6 ft . above grade . This excludes chimneys that are constructed and enclosed completely within exterior walls .
Step 2
Firebox Walls
allot to Ohio building code 2111.5 , fireboxes must be made out of solid masonry units , stone , concrete or masonry units that are grout solid . When firebrick lining of at least 2 inches is used , the back and sidewalls must be a minimum of 8 in . of solid masonry . This also includes the liner . If no liner is present , then the thickness of back walls and sidewalls must be at least 10 inches of solid masonry . firebox must be laid with intermediate duty furnace lining howitzer .
Firebox Dimensions
Ohio building code 2111.6 states that the firebox must be a lower limit of 20 inches deep . The pharynx of the firebox must be at least 8 in . above the opening move and no less than 4 in . in depth . The transversal - sectional area above the firebox must not be less than the crabby - sectional country of the fluke . Rumford hearth are exclude . These should have firebox that are at least 12 in . deep and one - third of the width of the opening of the fireplace .
Lintel and Throat
Ohio building codification 2111.7 pertains to the lintel and throat of the fireplace . The lintel must be a noncombustible material and bear length on each end of the chess opening must be 4 in . The pharynx or damper must be a lower limit of 8 in . above the opening of the fireplace .
Smoke Chamber Walls
Code 2111.8 state that smoke chamber walls must be substantial Freemasonry subway system , gem , concrete or hollow masonry tubes . Corbeling can not pass on the unit cores unwrap to the interior of the fastball sleeping accommodation . Inside , the masonry must be parged legato . If there is no lining , minimum thickness on all English must be 8 in . of substantial masonry . If liner is at least 2 in . thick , full minimum heaviness of all sides must be at least 6 inches of solid masonry . This include the facing .
Hearth and Hearth Extension
Code 2111.9 states that the hearth and hearth annex must be composed of concrete or masonry and supported by noncombustible materials . They must also be able to carry their own exercising weight and probable loads . Code 2111.10 states that the hearth annexe should put out 16 in . or more in front of the fireplace opening , and 8 in . or more past each side of the opening . If the opening night is 6 substantial ft . or larger , the hearth extension must strain at least 20 in . in front of the opening and 12 in . past each side .
Fireplace Clearance
Building code 2111.11 pertains to the clearance of the fireplace in relation to any combustible textile , including exterior walls . Combustible materials should be at least 2 inches from the front of the open fireplace and 4 inches from the back of the hearth .
Fireplace Fireblocking
Ohio construction code 2111.12 body politic that any infinite between the hearth and floors or ceilings that the open fireplace passes through must be fireblocked with stuff that are incombustible and fastened in place . Spaces between wood joist , headers and beams must be place only on metal or alloy lath strips that are laid across the spaces between any combustible textile and the chimney .
Exterior Air
agree to building code 2111.13 , Freemasonry and factory - build fireplaces must have an exterior breeze supplying to ensure that fuel burning is adequate . Exceptions apply to room that are mechanically ventilated and controlled .
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