Assessments - 3, GPA: 4
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Do not install a mantel face plate less than 6" (159 mm) from top of fireplace opening for radiant models and 6" (159 mm) from top of grille opening for circulating models. (Fig. 22) If a combustible material is used below a flat mantel shelf, consult your local building codes for minimum clearance from top of fireplace opening to bottom of mantel shelf. All joints (top, bottom and sides) where wall or decorative facing material meets fireplace surround must be completely sealed with a noncombustible material. (Figs. 21 and 22) NOTE: No side wall protection is required for fireplaces installed at 45° to two (2) side walls (corner installation). Often a decorative surround or vertical portion of the mantel is desired. If this is constructed of any combustible material it must be within the safe zone indicated in Figure 23. FP559 Fig. 20 Minimum clearances to combustibles. Front View Side View Standoff Combustible framing material MUST NOT penetrate AIR SPACE (shaded areas). Air Space Clearances Only noncombustible material may be applied as facing to the black fireplace surround. Wall Shield Hearth Extension 0" Clearance to Floor Firestop 1/2" Air Space to Back 1/2" Air Space to Sides 1......" 1/2" air space to sides 14 7412948 SR/SC Series "A" Woodburning Fireplace 12" (305mm) Max. 1/2" 12" (305mm) Max. 12" (305mm) Min. 1......" (38mm) * 12" (305mm) Min. 1......" (38mm) 6" (159mm) Min. 12" (305mm) Max. 12" (305mm) Min. 1......" (38mm) 6" (159mm) Min. Mantel Clearance - Radiant Model - No Noncombustible Facing Material Combustible Mantel and Trim Finished Wall Header Standoff Noncombustible Material Radiant Sur- round Face Fireplace Open- ing * Minimum width from top of sur- round to bottom of screen rail Combustible Man- tel and Trim Mantel Clearance - Radiant Model - with Noncombustible Facing Material Header Standoff Noncombustible Material Finished Wall Noncombustible Fac- ing Material Radiant Surround Face Fireplace Open- ing Mantel Clearance - Circulating Model Combustible Man- tel and Trim Header Standoff Noncombustible Material Finished Wall Circulating Front Fireplace Opening 2 x 4 Stud Finished Wall Must be sealed with Noncombustible Material Fireplace Front Top View FP531a Fig. 21 Mantel clearances. 1......" Ref. Combustible materials are permitted within a shaded area shown in Figure 23 titled Minimum Wall Clearances. * ** MA81 *12" from top of fireplace opening for radiant models 12" from top of grille opening for circulating models **6" from top of fireplace opening for radiant models (Noncombustible material must sepa- rate the black face surround of the fireplace and any combustible mantel material) 6" from top of grille opening for circulating models Face Plate Fig. 22 Combustible mantle clearances. 7412948 15 SR/SC Series "A" Woodburning Fireplace Hearth InstallationSide Wall Protection Adjacent combustible side walls that are within the minimum dimensions shown in Figure 23 of fireplace opening must be protected with MHSC Wall Shield Model SP40 or a specifically built wall shield described below. The special wall shield design described in Figure 20 is an alternate method of adding protection to side walls and can be used in place of the SP40 with the same wall clearances specified for the SP40. Rt must =1.85 minimum. Examples of wall shield insulation: 1. Manville - CERAFORM 126, K=.27, 1/2 inches thick 2. MHSC - EH2416, K = .458, 1 inch thick required. A hearth extension is required to protect a combustible floor in front of the fireplace. Refer to Figure 23 for minimum dimensions and mounting detail. NOTE: Hearth Extension must not cover the air inlet opening of a fireplace. The hearth extension described in Figure 23 must be a durable noncombustible material with a minimum (total) Rt value of 1.09; refer to Figure 24 for examples. The overall height (above a combustible floor), depth and width must be as indicated, with the extension centered to the fireplace opening. The top of insulation must be covered with a noncombustible decorative covering or a piece of .018” minimum sheet metal, to protect hearth extension material. (Fig. 23) Secure the hearth extension to the floor to prevent shifting, using trim molding or other similar means at three (3) outer edges. Seal crack between the fireplace hearth and hearth extension with a noncombustible material. (Figs. 23 and 25) Minimum Wall Clearances WITH Noncombustible Surround Facing WITHOUT Noncombustible Surround Facing Minimum Hearth Extension Dimensions (for On-Site Construction) GHGJSeal cracks between the fireplace and hearth extension with noncombustible material Safety strips must overlap 1/2" minimum May install noncombustible decorative covering OR .018" min. sheet metal FIREPLACE HEARTH COMBUSTIBLE FLOOR MINIMUM INSULATION VALUE "R" 4" MIN. FIREBOX OPENING A - Min. clearance to combustible perpendicular wall B - Min. clearance to combustible perpendicular wall when using noncombustible wall shield* SIDE WALL SIDE WALL F** C** EED...
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Lareiras - SR/SC Series "A" SC36A (1.41 mb)
Lareiras - SR/SC Series "A" SR36A (1.41 mb)