Hearth and Home Technologies HST-42D owner manual Chimney Termination Requirements, Flat Roofs

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J. Chimney Termination Requirements

Install a cap approved and listed for this fireplace system.

Locate cap where it will not become plugged by snow or other materials.

Locate cap away from trees or other structures.

The bottom of the termination cap must be at least 3 ft (.91 m) above the roof AND at least 2 ft (.61 m) above any portion of roof within 10 ft (3.05 m) as shown in Figure 8.10.

The distance required between caps is shown in Figure 8.10.

Slanted Roofs

Chimney must extend 3 ft (.9 m) above the roof

Flat Roofs

Chimney must extend 3 ft (.9 m) above the roof

Chimney must extend 2 ft (.6 m) above any portion of the roof or adjacent structures within

10 ft (3 m) of the chimney

Chimney must extend 2 ft (.6 m) above any portion of the roof or adjacent structures within

10 ft (3 m) of the chimney

Multiple Chimney Locations

Gas, Wood or Fuel Oil

Termination Cap

A

B

6 in. (minimum) up to 20 in.

18 in. minimum

152 mm/508 mm

457 mm

20 in. and over

0 in. minimum

 

 

Wall

B

Wood

Perpendicular

 

Minimum

 

A *

(See

 

illustration

 

 

above)

 

Gas

 

 

Termination

 

 

Cap **

 

 

Î

* If using decorative cap cover(s), this distance may need to be increased. Refer to the installation instructions supplied with the decorative cap cover.

** In a staggered installation with both gas and wood terminations, the wood termination cap must be higher than the gas termination cap.

Figure 8.10 Multiple Chimney Locations

Heat & Glo • HST-42D • 27177 • Rev AB • 11/08

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Contents Hot screen/mesh and glass doors will cause burns Wood Burning FireplaceFire Risk Grate Listing Label Information/LocationNumber Installer Guide Table of ContentsUser Guide CONDITIONS, Exclusions & Limitation of Liability Warranty Hearth & Home Technologies Limited WarrantyHeat & Glo HST-42D 27177 Rev AB 11/08 Combustible Materials Listing and Code ApprovalsAppliance Certification Non-Combustible MaterialsYour Fireplace Operating InstructionsHot glass will cause burns Firescreen Seasoned WoodStarting a Fire GrateOptional Components Glass DoorsOutside Air optional Vented Gas Log Sets & Gas Log LightersWood Fuel Creosote Formation and Need for Removal Maintainance and ServiceChimney Inspection/Cleaning Disposal of AshesFrequency As desired Glass CleaningCheck Firebox Refractory Inspect GrateStart Fire Problems Possible Cause Solution Troubleshooting GuideTypical Fireplace System Getting StartedDraft Design and Installation ConsiderationsNegative Pressure Frequently open doors Central heat outlets or returns Locating Fireplace & ChimneyFireplace System Requirements Tools and Supplies NeededInspect Fireplace and Components Select Fireplace Location Framing & ClearancesClearances to Combustible Materials ClearancesFrame the Fireplace Sidewalls/SurroundsPlace Protective Metal Hearth Strips Installation of FireplaceThings to Consider Position the FireplaceFt min. from top of uppermost chimney section to air inlet AK14/AK18 Installation Install Outside Air KitChimney Assembly Meters Chimney RequirementsExample Using Offsets/ReturnsAssemble Chimney Sections Install Chimney Air KitInstalling the Ceiling Firestop Install Ceiling FirestopsPrepare Attic Insulation Shield Install Attic Insulation ShieldCut out Hole in Roof Complete InstallationInstall Flashing Following steps should be skipped if using a chaseFlat Roofs Chimney Termination RequirementsConstruct the Chase Chase InstallationsInstall Chase Top Install Fireplace & ChimneyST375 Square Termination Cap Install Termination CapTS345/TS345P Square Termination Cap Open Top Shroud TR342 caps require radiation shield ShroudsRadiation Shield Field Constructed ShroudsRoofed Style Shroud radiation shield required Mailbox Style Shroud radiation shield requiredHearth Extension Finishing= 1/k x inches of thickness Noncombustible Facing Finishing MaterialClearances to Mantels or other Combustibles above Fireplace Combustible MantelSquares Gas Code, Ansi Z223.1 AccessoriesGas Log/Lighter Provision Wood Burning InsertsReference Materials Fireplace DimensionsCatalog # Chimney Components14-1/2 10-7/8 276 mm HST-42D Service PartsDo not Discard this Manual