Hearth and Home Technologies GDST3831I owner manual Constructing the Appliance Chase, Clearances

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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 in- sulation. 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.

C. Clearances

NOTICE: Install appliance on hard metal or wood surfaces extending full width and depth. DO NOT install directly on carpeting, vinyl, tile or any combustible material other than wood.

WARNING! Risk of Fire! Maintain specified air space clearances to appliance and vent pipe:

Insulation and other materials must be secured to prevent accidental contact.

The chase must be properly blocked to prevent blown insulation or other combustibles from entering and making contact with fireplace or chimney.

Failure to maintain airspace may cause overheating and a fire.

A

A

Note: The header must be installed on end as shown in this diagram.

E

HEADER

 

 

 

 

 

 

 

I

 

 

 

 

 

 

 

 

F

 

 

 

*C

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

G

 

 

 

 

 

 

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H

 

 

MINIMUM FRAMING DIMENSIONS

 

 

 

 

A

B

*C

D

E

F

G

H

I

GDST3831I

Rough

Rough

Rough

Rough

Clearance

Combustible

Combustible

Ends of

Sides of

Opening

Opening

Opening

Opening

 

(Width)

(Height)

(Depth)

(Width)

to Ceiling

Floor

Flooring

Appliance

Appliance

 

 

 

 

 

 

Inches

8-5/8

34-3/4

15

38-1/8

31

0

0

1/2

36

Millimeters

219

883

381

969

787

0

0

13

914

*Adjust framing dimensions for interior sheathing (such as sheetrock)

Figure 5.2 Clearances to Combustibles GDST3831I

Heatilator • GDST3831I • 2127-900 Rev. F • 10/08

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Contents HOT Surfaces ModelsWhat to do if you smell gas Do DiscardnotHomeowner Reference Information CongratulationsXxxxxxxx User Guide Table of ContentsFinishing Appliance SetupTroubleshooting Electrical InformationCONDITIONS, Exclusions & Limitation of Liability Limited Lifetime Warranty Listing and Code Approvals Requirements for the Commonwealth of Massachusetts Installation of Carbon Monoxide DetectorsOperating Instructions User Guide Gas Fireplace SafetyYour Fireplace Clear Space Fixed Glass AssemblyRemote Controls, Wall Controls and Wall Switches Fan Kit optionalWhat to do if YOU Smell GAS Lighting Instructions IPIFinal inspection by Do not Connect 110 VAC to the Control ValveIssue Solutions Frequently Asked QuestionsAfter Fireplace is Lit Remote Control Maintenance and ServiceMaintenance Tasks-Homeowner Glass CleaningLogs Maintenance Tasks-Qualified Service TechnicianGasket Seal and Glass Assembly Inspection VentingIPI Pilot Flame Patterns Burner Ignition and OperationTypical Appliance System Getting StartedTools and Supplies Needed Design and Installation ConsiderationsInspect Appliance and Components Selecting Appliance Location Framing and ClearancesConstructing the Appliance Chase Minimum Framing DimensionsClearances TOP View Fireplace Opening Mantel and Wall ProjectionsVent Termination Minimum Clearances Termination LocationsCovered Alcove Applications Correct Install Support BracketsTo Install the Heat Shield Continue Adding Vent ComponentsUse of Elbows Vent Information and DiagramsApproved Pipe Vent Table KeyUse of Flex Vent Top Vent Horizontal Termination One Elbow Vent DiagramsV1 Minimum H1 Maximum V1 Minimum H1 + H2 Maximum Top Vent Horizontal Termination Two ElbowsV1 Minimum H1 + H2 Maximum V1 + V2 Min Top Vent Horizontal Termination Three ElbowsExhaust restrictor Instructions Minimum Maximum + V 2 Min Two Elbows Three ElbowsCombustible Wall Penetration Vent Clearances and FramingPipe Clearances to Combustibles Wall Penetration FramingPipe SLP Install the Ceiling FirestopFlat Ceiling Installation Install Attic Insulation ShieldVaulted Ceiling Installation Securing and Leveling the Appliance Appliance PreparationAssemble Vent Sections Installing Vent PipeSecuring the Vent Sections Assemble Slip SectionsDisassemble Vent Sections Installing Decorative Ceiling ComponentsAssemble and Install Storm Collar Installing Metal Roof FlashingApply Sealant TOP & Partial Sides Install RF4-8Installing Decorative Wall Components Installing Vertical Termination CapHeat Shield Requirements for Horizontal Termination 22 Venting through the wall Install Horizontal Termination CapGas Connection Gas InformationFuel Conversion Gas PressureCode CSA C22.1 Wiring RequirementsOptional Accessories Requirements Electrical InformationIntellifire Ignition Wiring Diagram with Remote Receiver Wall Switch Installation for Fan Optional Junction Box InstallationFinishing Splatter Guard To install the Splatter GuardTo Remove the Splatter Guard To Close the Lower Access PanelAppliance Setup Models ST-550T-IPI. GDST3831I Install the Log AssemblyPilot Notch Air Shutter Setting Install Trim Kits and SurroundsAir Shutter Settings Symptom Possible Cause Corrective Action TroubleshootingIntellifire Ignition System Remove any contaminants that may have accumulated on Electrical Access Left View Front View GAS Line Right View Appliance Dimension DiagramReference Materials Vent Components Diagrams DVP-2SL SLP-WT-BK SL-2DVP AssemblySLP-DCF-BK SLK-SNKD SLP-CCS-BK SLP-TVHW SLP-TRAP1 SLP-TRAP2DVP-TB1 Horizontal Termination CAP SLP-HRC-SS SLP-HRC-ZC-SS Horizontal Termination CAPService Parts Log Set AssemblyDescription Comments Part Number Service Parts ListStocked At DepotIntermittent Pilot Ignition Valve Assembly Contact Information