Hearth and Home Technologies EL42 Series, EL36 Series Chase Installations, Construct the Chase

Page 32

9 Chase Installations

A. Construct the Chase

Gas line holes and other openings should be caulked with

A chase is a vertical boxlike structure built to enclose the

high temperature caulk or stuffed with unfaced fiberglass

insulation. If the fireplace is being installed on a cement

fireplace and/or its vent system. Vertical chimneys that

slab, we recommend that in cold climates, a sheet of

 

run on the outside of a building must be installed inside a

 

plywood or other raised platform be placed underneath to

chase.

prevent conducting cold up into the room.

 

Construction of the chase may vary with the type of build-

 

Three examples of chase applications are shown in Fig-

ing. These instructions are not substitutes for the require-

ure 9.2.

 

 

ments of local building codes. Local building codes MUST

 

 

 

 

 

be checked.

 

 

 

1. Fireplace and chimney enclosed in an exterior chase.

 

A chase should be constructed in the manner of all

 

2. Chimney offset through exterior wall and enclosed in chase.

outside walls of the home to prevent cold air drafting

3. Chase constructed on roof.

 

problems. The chase should not break the outside build-

 

 

 

 

ing envelope in any manner. All outer walls need to be

Note: In cooler climates, all chase walls should be insulated.

insulated.

 

 

 

Building codes require false ceiling and ceiling firestops

 

 

 

at each floor of the chase or every 10 ft (3.05 m) of clear

 

 

 

space to control spread of fire.

 

 

 

Walls, ceiling, base plate and cantilever floor at the first

 

 

 

level of the chase should be insulated. See Figure 9.1.

 

 

 

Vapor and air infiltration barriers should be installed in the

 

 

 

chase as per regional codes for the rest of the home. Ad-

 

 

 

ditionally, Hearth & Home Technologies recommends that

1

2

3

the inside surfaces be sheet rocked and taped (or the use

of an equivalent method) for maximum air tightness.

 

 

 

 

 

 

Figure 9.2

Chase Constructions

Round Termination Cap

 

 

 

Metal Chase Top

 

WARNING! You must install false ceilings and ceiling

 

firestops at each floor of the chase or every 10 ft (3.05 m)

 

 

 

 

Ceiling

 

to control spread of fire.

 

Firestop

 

 

 

 

 

 

WARNING! Risk of Fire! DO NOT seal area between fire

 

 

 

stop opening and chimney pipe. Restricting air flow around

 

 

 

chimney may cause fire.

 

 

 

WARNING! Risk of Fire! You must maintain a minimum

 

 

 

2 in. (51 mm) air space clearance to insulation and other

 

False Ceiling

 

materials surrounding the chimney system.

 

Attic

 

• Insulation and other materials must be firmly secured to

 

 

prevent accidental contact with chimney system.

Tabs

Insulation

 

Shield

 

• The chase must be properly blocked to prevent blown

 

 

 

Ceiling

Insulation in the

insulation or other combustibles from entering and

 

Firestop

outside walls

making contact with fireplace or chimney.

 

of the chase

 

 

• Failure to prevent contact between insulation or other

Insulation

Insulation

 

False Ceiling

False Ceiling

 

materials and chimney system may cause overheating

 

and fire.

 

 

Chimney

 

 

 

 

 

 

Figure 9.1

Chase Assembly

 

 

 

32

 

Heatilator • EL36/EL42 • 4044-132 • Rev V • 11/08

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Contents Wood Burning Fireplace OperationHot screen/mesh and glass doors will cause burns Fire RiskNumber Listing Label Information/LocationGrate User Guide Table of ContentsInstaller Guide Warranty Hearth & Home Technologies Limited Warranty CONDITIONS, Exclusions & Limitation of LiabilityHeatilator EL36/EL42 4044-132 Rev V 11/08 Listing and Code Approvals Appliance CertificationNon-Combustible Materials Combustible MaterialsHot glass will cause burns Operating InstructionsYour Fireplace Seasoned Wood Starting a FireGrate FirescreenGlass Doors Vented Gas Log Sets & Gas Log LightersOptional Components Clear SpaceWood Fuel Maintainance and Service Chimney Inspection/CleaningDisposal of Ashes Creosote Formation and Need for RemovalGlass Cleaning Check Firebox RefractoryInspect Grate Frequency As desiredTroubleshooting Guide Start Fire Problems Possible Cause SolutionInstaller Guide Getting StartedNegative Pressure Design and Installation ConsiderationsDraft Locating Fireplace & Chimney Frequently open doors Central heat outlets or returnsInspect Fireplace and Components Tools and Supplies NeededFireplace System Requirements Select Fireplace Location Mm all configurationsFraming & Clearances Clearances Clearances to Combustible MaterialsFrame the Fireplace Fireplace Outside Model # Opening DimensionsSidewalls/Surrounds Installation of Fireplace Things to ConsiderPosition the Fireplace Place Protective Metal Hearth StripsFt min. from top of uppermost chimney section to air inlet YESInstall Outside Air Kit Outside Air InstallationChimney Assembly Maintain minimum height of chimney above roofChimney Requirements Height of Chimney ComponentsUsing Offsets/Returns ExampleInstall Chimney Air Kit Assemble Chimney SectionsInstall Ceiling Firestops Installing the Ceiling FirestopInstall Attic Insulation Shield Prepare Attic Insulation ShieldComplete Installation Install FlashingFollowing steps should be skipped if using a chase Cut out Hole in RoofChimney Termination Requirements Flat RoofsChase Installations Construct the ChaseGas line holes and other openings should be caulked with Chase should be constructed in the manner of allInstall as per Sections 7 Install Fireplace & ChimneyInstall Chase Top Install Termination Cap ST375 Square Termination CapTS345/TS345P Square Termination Cap TCT375 Terra Cotta CapShrouds Radiation ShieldField Constructed Shrouds Open Top Shroud TR342 caps require radiation shieldMailbox Style Shroud radiation shield required Roofed Style Shroud radiation shield requiredFinishing Hearth Extension= 1/k x inches of thickness Refer to .2 for hearth extension insulation alternativesRaised Hearth Extension Framing Minimum betweenNon-combustible Sealant Noncombustible Finishing MaterialsFinishing Material In. Micore or equivilent insulationCombustible Mantel Clearances to Mantels or other Combustibles above FireplaceOutside Di- mensions ModelAccessories Gas Log/Lighter ProvisionWood Burning Inserts Gas Code, Ansi Z223.1Fireplace Dimensions Reference Materials1321 mm 406 mm 1676 mm 508 mm 13 mmID4 Insulated Duct Mm i.d 1067 mm UD4 Uninsulated Duct Air Kit PartsChimney Components Catalog #Effective Outside Height Diameter 10-1/2 121 mm 267 mm 10-1/2 267 mm305 mm 27-3/8 24-5/8 695 mm 625 mm 305 mm 24-5/8 625 mm 787 mm10-7/8 276 mm Rev V 11/08 Service PartsHeatilator EL36/EL42 EL42 Contact Information
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