Assessments - 6, GPA: 3
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The least clearance is required when both the stove and the wall have heat shields. Reducing a stove clearance may require a listed heat shield on the chimney connector as well, or a double-wall connector. Clearances may be reduced only by means approved by the regulatory authority and in accordance with the clearances listed in this manual. The charts and sample installations that follow list all the clearances required for the various installation configurations of Dutchwest Convection Heaters. Clearances Fireplace Installation Clearances A fireplace installation requires special clearance between the: • Side of the stove and the right and left walls • Side of the stove and the decorative side trim on the fireplace face • Top of the stove and the mantel In addition, both Fireplace Adaptor and Fireplace Insert installations have special floor protection requirements that are addressed in the section on Floor Protection. ST809 Fig. 14 Extra floor protection may be required for the fireplace hearth, even if your stove is installed with the legs and the bottom heat shieSlTd8.09.. stove n fireplace 5/04 Side Walls (S) ................ 15” (381 mm) Trim (T) .......................... 8” (203 mm) Top Trim (TT) ................. 12” (305 mm) Mantel (M) ..................... 16” (406 mm) ST800 Fig. 15 Minimum clearances for fireplace installation. Recommended clearances must be maintained between stove and the surrounding combustible components. 12 Dutchwest Non-Catalytic Convection Heater 30002314 Alcove Installations Because of their restricted air flow and heat retention characteristics, specific construction requirements and special clearances apply to installations into alcoves. No stove or chimney connector heat shields are used in alcove installations. ALCOVE INSTALLATION OF THE DUTCHWEST MODEL #2477 IS PERMITTED IN BOTH THE US AND CANADA. Construction Requirements The following illustrations show noncombustible ceiling framing and maximum and minimum permitted dimensions for alcove construction. 36" (914 mm) Max. 40" (1016 mm) Min. ST829 Dutchwest small Alcove floor plan 9/04 djt Use recommended floor protection 7/16” Durock ® (or equivalent) spaced 1” off wood studs on noncombustible spacers ST829 Fig. 16 Alcove floor plan. Sheetrock on front face butts to Durock® (or equivalent) alcove lining. ST503 Alcove side view 11/10/00 djt I N T R E P I D I I Metal Stud Combustible facing may overlap metal studs by only 1” 1” air gap top and bottom, on both sides and back wall 7/16” Durock® (or equivalent) Joist Shield (Supplied by Chimney Manufacturer) ST503 Fig. 17 Alcove side section. St504 Alcove cutaway 11/00 ST504 Fig. 18 Cutaway perspective of alcove installation. 20" (508 mm) 14..." (362 mm) 40" (1016 mm) Min. 11..." (292 mm) Min. 36" (914 mm) Max. ST505 Alcove Ceiling plan 11/00 Existing Combustible Framing Metal studs support 7/16” Durock® (or equivalent) or sheet metal ceiling ST830 Fig. 19 Reflected ceiling plan. Ceiling support package extends 2” below Durock® (or equivalent) ceiling 1” air gap, top, bottom, on both sides and back wall ST506 Fig. 20 Front view: 79” (201 cm) minimum clearance form hearth to combustibles on front face. Combustible facing may overlap metal studs by only 1” (25 mm). It should not extend below the height of the noncombustible ceiling. NOTE: From 76” (193 cm) to 79” (201 cm) must be covered by a noncombustible material. 79" (201 cm) ST831 Dutchwest alcove front view 9/04 13 Dutchwest Non-Catalytic Convection Heater 30002314 Designing a Safe Installation The section that follows contains charts with the information that you’ll need to make your installation safe. Included are a chart to tell you exactly where to cut the hole in the ceiling so that the stove will meet clearance requirements, a chart that gives stove clearances for all installations, and a chart to illustrate the required sizes of wall shields for various installations. Refer to these charts as you plan the installation and do not compromise on any of the dimensions listed. Clearance Chart Reference Diagrams Refer to the diagrams below when using the Stove and Chimney Connector Clearance Chart that follows. For example, the letter “A” gives the minimum side clearance for installations in which the stove is not equipped with any heat shield and the wall beside the stove is not protected. “D” gives the minimum side clearance when the stove does not have any heat shield, but the wall is protected. Measure clearance distances from the top plate of the stove or chimney connector to the wall, not the wall protector. ST255a exit diagram 6/30/00 djt B A C C E D F F H G J I L K M M O N P P Unprotected Surfaces Protected Surfaces Parallel Installations Corner Installations Parallel Installations Corner Installations Installations with no stove heat shields Rear exit, flue collar heat shield installations Top exit, flue collar heat shield, right side heat shield and chimney connector heat shields or double wall connector ...