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

A: Minimum Fireplace Opening Width................... 31"
B: Minimum Fireplace Opening Height................... 22"
C: Minimum Fireplace Depth at Floor.....................18"
D: Minimum Fireplace Depth at 22" above Floor....18"
E: Minimum Fireplace Width at 18" Depth............. 22"
F: Minimum Hearth Width.............................. 46-5/8"
NOTE: Above dimensions are absolute minimums; please measure carefully!
G: If Fireplace Opening is raised above hearth: Support must be provided for 7" extension outside firebox
H: Minimum Hearth Depth (Including non-combustible extension if needed)............................... 23"
I : Stainless steel liner size........................................................................................................... 6"
J: Minimum Height from Hearth or floor of fireplace to Combustible Trim.................................. 45"
K: Minimum Distance from Centerline of Fireplace Opening to Combustible Side Trim... 21-13/16"
L: Minimum Distance from Centerline of Fireplace Opening to Combustible Side Wall.... 35-13/16"
M: Minimum Height from Hearth or floor of fireplace to Combustible Mantel............................. 45"
M(a): Minimum Height from Hearth or fireplace floor to Combustible Mantel w/ Shield.............. 33"

Area covered by standard (embossed) surround panels....... 29"T x 42-3/4"W
Area covered by extra-large (flat) surround panels.............. 33"T x 44"W
| Left: Minimum requirement. If the chimney is properly lined with terra-cotta liner tiles with a 6" x 9" opening 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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