Hearth and Home Technologies CB4842MIR, CB4236MIR owner manual Constructing the Appliance Chase

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B. Constructing the Appliance Chase

A chase is a vertical box-like structure built to enclose the gas appliance and/or its vent system. In cooler climates the vent should enclosed inside the chase.

NOTICE: Treatment of ceiling firestops and wall shield firestops and construction of the chase may vary with the type of building. These instructions are not substitutes for the requirements of local building codes. Therefore, you MUST check local building codes to determine the requirements to these steps.

Chases should be constructed in the manner of all out- side walls of the home to prevent cold air drafting prob- lems. The chase should not break the outside building envelope in any manner.

Walls, ceiling, base plate and cantilever floor of the chase should be insulated. Vapor and air infiltration barriers should be installed in the chase as per regional codes for the rest of the home. Additionally, in regions where cold air infiltration may be an issue, the inside surfaces may be sheetrocked and taped for maximum air tightness. To further prevent drafts, the wall shield and ceiling fire- stops should be caulked with high temperature caulk to seal gaps. Gas line holes and other openings should be caulked with high temp caulk or stuffed with unfaced insulation. If the appliance is being installed on a cement slab, a layer of plywood may be placed underneath to prevent conducting cold up into the room.

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Heatilator • Caliber Mesh BV Series • 4040-848 Rev G • 10/08

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Contents Vent Gas Appliance Installation and OperationModels What to do if you smell gasCongratulations Homeowner Reference InformationTable of Contents Installer GuideUser Guide Appliance Setup TroubleshootingReference Materials Warranty Hearth & Home Technologies Limited Warranty CONDITIONS, Exclusions & Limitation of LiabilityWarranty Listing and Code Approvals Gas Fireplace Safety Operating InstructionsYour Fireplace Fan Kit optional Fixed Glass AssemblyRemote Controls, Wall Controls and Wall Switches Clear SpaceFor Your Safety Read Before Lighting Lighting Instructions IPIFrequently Asked Questions Initial Break-in ProcedureAfter Fireplace is Lit Maintenance and Service Maintenance Tasks-HomeownerMaintenance Tasks-Qualified Service Technician Getting Started Typical Appliance SystemDesign and Installation Considerations Tools and Supplies NeededInspect Appliance and Components Negative Pressure Framing and Clearances Selecting Appliance LocationModel # Constructing the Appliance Chase Clearances Rough Opening Model Width Height DepthMantel and Wall Projections MantelsMantel Legs or Wall Projections Termination Locations Vent Termination Minimum ClearancesGas Termination Vent Information and Diagrams Vent GuidelinesVent System Configuration Wall and Ceiling Penetration Framing Vent Clearances and FramingPipe Clearances to Combustibles Vertical Penetration FramingGas and Electrical Connections Install Outside Air Kit Damper AssemblyAppliance Preparation Secure and Level the ApplianceInstall Attic Insulation Shield Installing Vent PipeAssembly of Vent Sections Secure Vent SectionsGas Pressure Gas InformationFuel Conversion Gas ConnectionWiring Requirements Optional Accessories RequirementsElectrical Information Junction Box Installation Wall Switch Installation for Fan OptionalFinishing Facing MaterialAppliance Setup Removing Glass Assembly Install the Log AssemblyGlass Assembly Replacing Glass AssemblyInstall Hood Install TrimInstall Clean Face Components Install Top Latch CoverInstall Bottom Latch Cover Air Shutter SettingInstall Floor Cover Install Firescreen AssemblyTroubleshooting Intellifire Ignition SystemRange. Replace pilot if any damage is detected Appliance Dimension Diagram Reference MaterialsService Parts List CB4236MIRCB4842MIR IPI Valve Assembly Optional Components Model # Description This page intentionally left blank This page intentionally left blank Contact Information