Heart & Home Collectables MHC36, MHR36 Attic Insulation Shield, Double-check the Chimney Assembly

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MHC36 AND MHR36 INSTALLATION INSTRUCTIONS

6.Attic Insulation Shield

An insulation shield should be installed when there is a possibility of insulation coming into contact with the factory built chimney system. The insulation shield is installed by positioning it over the vertical chimney section where it penetrates a firestop spacer. The firestop spacer will support the insulation shield. See Figure 12.

Figure 12 - Installing an Attic Insulation Shield

7.Double-check the Chimney Assembly

Continue assembling the chimney sections up through the firestop spacers as needed. While doing so, be aware of the height and unsupported chimney length limitations that are given on page 11 under “Chimney Requirements”.

Check each section by pulling up slightly from the top to ensure proper engagement before installing the succeeding sections. If they have been connected correctly, they will not disengage when tested.

CAUTION:

Inner flue and outer liner sections cannot be disassembled once locked together. Plan ahead to ensure the proper installation height is achieved with the selected chimney compo- nents.

8.Secure the Chimney System

When offsets and returns are joined to straight pipe sections, they must be locked into position with the screws provided (outer only), using the predrilled holes. To prevent gravity from pulling the chimney sections apart, the returns and the chimney stabilizers have straps for securing these parts to joists or rafters. See Figure 13.

Note: You must provide support for the pipe dur- ing construction and check to be sure inadvertent loading has not dislodged the chimney section from the fireplace or at any chimney joint.

Figure 13 - Offset/Return with Stabilizer

WARNING!

When chimney sections exceeding 6 ft in length are installed between an offset and return, structural support must be provided to reduce off-center loading and prevent chimney sections from separating at the chimney joints.

WARNING!

Maintain a minimum of 2 in. air clearance to all parts of the chimney system at all times! Fail- ure to maintain this 2 in. air clearance will cause a structure fire.

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31072 Rev G

08/04

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Contents Installation & Operating Instructions Table of Contents Design and Installation Considerations Listings and Code Approvals Description of the Fireplace SystemHeatilator fireplace system consists of the following Optional Components IncludeSystem Components Fireplace ComponentsChimney Components AS8AS8 PRE-INSTALLATION Preparation Fireplace Locations and Space RequirementsMHC36 and MHR36 Installation Instructions Frame the Fireplace Framing the FireplaceChimney Requirements Sidewalls/SurroundsUsing Offsets and Returns Offset ChartChimney Height Requirements above roof line Number of Sections RequiredFireplace Installation Position the FireplacePlace the Protective Metal Hearth Strips Level the FireplaceInstall the Firestop Spacers Assemble Chimney SectionsAttic Insulation Shield Double-check the Chimney AssemblySecure the Chimney System MH842 Ceiling/Roof Thimble See Figures 14Install the Outside Air Kit Termination CapComplete the Enclosure Gas Log/Lighter ProvisionsHearth Extension Field Constructed Hearth ExtensionPosition the Hearth Extension Finishing MaterialMantel Glass DoorsGeneral Information Outside Air Operating InstructionsFlue Damper Firescreen GrateWood Fuel Draft Problems Starting a FireFlue Draft Maintenance Instructions Chimney CleaningDisposal of Ashes Creosote and SootIndex Limited Warranty Replacement Parts AdvantageHow to Obtain Service Heatilator Woodburning Fireplace