
The Chimney Sweep Online Fireplace, Woodstove, Gas Stove and Barbecue Shop

A: Minimum Fireplace Opening Width................... 35"
B: Minimum Fireplace Opening Height................... 25"
C: Minimum Fireplace Depth at Floor.....................18"
D: Minimum Fireplace Depth at 23" above Floor....18"
E: Minimum Fireplace Width at 18" Depth............. 26"
F: Minimum Hearth Width............................... 48-3/4"
G: If Fireplace Opening is raised above hearth: Support must be provided for 5-3/8" extension outside firebox
H: Minimum Hearth Depth (if hearth is raised at least 2" above combustible floor)................. 16"
H(a) Minimum Hearth Depth (if hearth is not raised 2" above combustible floor)............. 20-1/2"
I : Stainless steel liner size...................................................................................................... 6"
J: Minimum Height from Hearth or floor of fireplace to Combustible Trim.............................. 46"
K: Minimum Distance from Centerline of Fireplace Opening to Combustible Side Trim.......... 26"
L: Minimum Distance from Centerline of Fireplace Opening to Combustible Side Wall........... 26"
M: Minimum Height from Hearth or floor of fireplace to Combustible Mantel......................... 42"
Area covered by standard (embossed) surround panels....... 32"T x 48 3/4"W
Area covered by extra-large (flat) surround panels.............. 34"T x 52-3/4"W
| Left: Minimum requirement. If the chimney is properly lined with terra-cotta liner tiles with an opening measuring 6" x 9" or smaller, a direct-connect installation is permitted. Remove damper assembly, cut and anchor a stainless steel sealer plate (removable for cleaning) at the throat of the fireplace. Insert a length of 6" stainless flex pipe long enough to reach into the bottom liner tile through a hole cut in the sealer plate.Advantage: less expensive than full relineDisadvantages: reduced updraft, increased creosote formation, insert must be removed to clean chimney. |
Right: Preferred method, and required for zero-clearance fireplace installations, unlined masonry chimneys, or if existing liner is damaged. Remove damper assembly, install a 6" stainless steel liner the entire length of the chimney, passing through a stainless steel sealer plate at the top of the chimney; finish at top with stainless top clamp, storm collar and rain cap assembly.Advantages: better updraft, better performance, reduced creosote formation, chimney can be cleaned without removing insert.Disadvantage: more expensive to installTo read more about installing your stainless liner, click here. |
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