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

A: Minimum Fireplace Opening Width................... 24"
B: Minimum Fireplace Opening Height................... 21"
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..................................... 40"
NOTE: Above dimensions are absolute minimums; please measure carefully!
G: If Fireplace Opening is raised above hearth: Support must be provided for 9" extension outside firebox
H: Minimum Hearth / Ember Protection Depth (Including extension if needed).......................... 22"
I : Stainless steel liner size.......................................................................................................... 6"
J: Minimum Height from Hearth or floor of fireplace to Combustible Trim......................... 49-9/16"
K: Minimum Distance from Centerline of Fireplace Opening to Combustible Side Trim....... 18-3/8"
L: Minimum Distance from Centerline of Fireplace Opening to Combustible Side Wall........ 32-3/8"
M: Minimum Height from Hearth or floor of fireplace to Combustible Mantel.................... 49-9/16"
M(a): Minimum Height from Hearth or fireplace floor to Combustible Mantel w/ Shield..... 30-9/16"

Area covered by standard (embossed) surround panels....... 28-7/8"T x 42-5/8"W
Area covered by extra-large (flat) surround panels.............. 33"T x 44-3/8"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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