April 9, 2014 7044-225B 1531-I ACCInches MillimetersMinimum Width of Cavity Opening - Front 29-1/16 738Minimum Width of Cavity Opening - Rear 25-1/2 648Minimum Height 20-3/4 528Minimum Depth from Front to Rear 17-9/16 446Damper Smoke Shelf or BaffleEmber Catches Fire GrateViewing Screen/Curtain DoorsThe following parts may be removed:The following modifications of factory-built fireplaces arepermissible:• The fireplace must not be altered. Cutting any sheet metalparts of the fireplace in which the fireplace insert is to beinstalled is prohibited per ANSI Z21.88 except that thedamper may be removed to accommodate a direct-connectstarter pipe or chimney liner,• External trim pieces which do not affect the operation ofthe fireplace may be removed providing they can be storedon or within the fireplace for reassembly if the insert isremoved.• The permanent metal warning label provided in thecomponent pack must be attached to the back of thefireplace, with screws or nails, stating that the fireplace mayhave been altered to accommodate the insert, and mustbe returned to original condition for use as a conventionalfireplace. Figure 15.2.• If the hearth extension is lower than the fireplace opening,the portion of the insert extending onto the hearth must besupported.• Manufacturer designed adjustable support kit can beordered from your dealer.• Final approval of this installation type is contingent uponthe authority having jurisdiction.Fire Risk.When lining air-cooled factory-built chimneys:.• Run chimney liner approved to UL 1777 TypeHT requirements (2100 degrees F)• Re-install original factory built chimney capONLY• DO NOT block cooling air openings in chimney• Blocking cooling air will overheat the chimneyWARNINGPrefabricated Metal Chimney (Cont’d)LINER CONNECTORFLUEGASDIRECTIONCRIMPEDENDTOWARDSSTOVEFigure 15.1NOTICE: In Canada when using a factory-built chim-ney it must be safety listed, Type UL103 HT (2100oF)[1149oC] CLASS “A” or conforming to CAN/ULC-S629M, STANDARD FOR 650oC FACTORY-BUILTCHIMNEYS.NOTE: Refer to chimney liner manufacturer for recom-mendations on supporting the liner. Installation intofireplaces without a permit will void the listing.H. Altering the FireplaceG. Securing Chimney ComponentsAll joints should be secured with 3 sheet metal screws orrivets per pipe manufacturers instructions. The sections mustbe attached to the insert and to each other with the crimped(male) end pointing toward the insert. Figure 15.1.WARNING! Risk of Fire!Follow venting manufacturer’s clearances and instructionswhen installing venting system.250-2061WARNINGTHIS FIREPLACE MAY HAVE BEEN ALTEREDTO ACCOMMODATE AN INSERT. IT MUST BERETURNED TO ITS ORIGINAL CONDITIONBEFORE USE AS A SOLID FUEL BURNINGFIREPLACE. 250-2061Heath & Home Technologies250-20615.5 in. width x 2 in. heightNON. ANOD. ALUM BLACK LETTERS ON SILVERwith 1/8 in. holes on both sides.Black lettersFigure 15.3