Design Dynamics VF-24N-PJD Owner's Operation And Installation Manual

Also see for VF-18N-PJD: Owner's operating & installation manual

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Design Dynamics VF-24N-PJD Owner's Operation And Installation Manual Manual pdf 9 page image

www.desatech.com111826-04A 9INSTALLATION AND CLEARANCESFOR VENT-FREE OPERATIONWARNING: Maintain theminimum clearances. If you can,provide greater clearances fromfloor, ceiling and adjoining wall.INSTALLATIONContinuedCarefully follow the instructions below. This willensure safe installation into a masonry, UL127-listed manufactured fireplace or listed vent-freefirebox enclosure.Minimum Clearances For SideCombustible Material, Side Wall andCeilingA. Clearances from the side of the fireplacecabinet to any combustible material and wallshould follow diagram in Figure 4.Example: The face of a mantel, bookshelf,etc. is made of combustible material andprotrudes 3 1 /2" from the wall. This combus-tible material must be 4" from the side of thefireplace cabinet (see Figure 4).Note: When installing your gas logs intoa manufactured firebox, follow fireboxmanufacturerʼs instructions for minimumclearances to combustible materials.B. Clearances from the top of the fireplace openingto the ceiling should not be less than 42 inches.Figure 4 - Minimum Clearance forCombustible to Wall*Minimum 16 inches from Side Wall*ExampleLOG SIZING REQUIREMENTSMinimum Firebox SizeLog Front Rear*Size Height Depth Width Width18" 17" 14" 24" 20"24" 17" 14" 28" 22"MINIMUM FIREPLACECLEARANCE TOCOMBUSTIBLE MATERIALSLog Size 18" or 24"Side Wall 16"Ceiling 42"Floor 5"*Measured at 14" depthMinimum Noncombustible MaterialClearancesIf Not Using MantelNote: If using a mantel, proceed to If UsingMantel. If not using a mantel, follow the informa-tion below.You must have noncombustible material(s) abovefireplace opening. Noncombustible materials(such as slate, marble, tile, etc.) must be at least1/2 inch thick. With sheet metal, you must havenoncombustible material behind it. Noncombus-tible material must extend at least 8" up (for allmodels). If noncombustible material is less than12", you must install the fireplace hood accessory- 24" models only). See Figure 5, page 10, forminimum clearances.If Using MantelYou must have noncombustible material(s) abovethe fireplace opening. Noncombustible materials(such as slate, marble, tile, etc.) must be at least1/2 inch thick. With sheet metal, you must havenoncombustible material behind it. Noncombus-tible material must extend at least 8 inches up (forall models). If noncombustible material is less than12", you must install the fireplace hood accessory.Even if noncombustible material is more than 12",you may need the hood accessory to deflect heataway from your mantel shelf. See Figures 5, 6 and7, page 10, for minimum clearances.