Hearth and Home Technologies T4200 manual Chimney Height Requirements above roof line

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T4200 FIREPLACE INSTALLATION INSTRUCTIONS

2.Chimney Height Requirements (above roof line)

a.Major building codes specify a minimum chimney height above the roof top. These specifications are summarized in what is known as the Ten Foot Rule. This rule states:

“If the horizontal distance from the side of the chimney to the peak of the roof is ten feet or less, the top of the chimney must be at least two feet above the peak of the roof, but never less than three feet in overall height above the highest point where it passes through the roof.

“If the horizontal distance from the side of the chimney to the peak of the roof is more than ten feet, a chimney height reference point is established on the surface of the roof a distance of ten feet from the side of the chimney in a horizontal plane. The top of the chimney must be at least two feet above this reference point, but never less than three feet in height above the highest point where it passes through the roof.” See Figure 8.

b.These chimney heights are necessary in the interest of safety but do not ensure smoke-free operation. Trees, buildings, adjoining roof lines, adverse wind conditions, etc. may create a need for a taller chimney should smoking occur.

3.Number of Sections Required

To determine the chimney components needed to complete your particular installation, follow the steps below:

a.Determine the total vertical height of the fireplace installation. This dimension is measured from the base of the fireplace assembly to the point where the smoke exits the termination cap.

b.Subtract the effective height of the fireplace assembly from the overall height of the fireplace installation (measured from the base of the fireplace to the bottom of the termination cap).

c.Refer to Table 2 to determine what components must be selected to complete the fireplace installation.

d.Determine the number of firestop spacers, stabi- lizers, roof flashing, etc. required to complete the fireplace installation.

Figure 8 - Chimney Height

Table 2

HEIGHT OF CHIMNEY COMPONENTS

Chimney Stabilizer

SL11

43/4"

Firestop Spacers

 

FS538

0

FS540

0

Offsets/Returns

 

SL1130

1"

Roof Flashing

 

RF570

0

RF571

0

Chimney Sections*

 

SL1106

43/4"

SL1112

103/4"

SL1118

163/4"

SL1136

343/4"

SL1148

463/4"

*Dimensions reflect effective height.

12

35036 Rev E

12/03

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Contents Installation & Operating Instructions Table of Contents Design and Installation Considerations Listings and Code Approvals Description of the Fireplace SystemSystem Components Fireplace Components Catalog # DescriptionChimney Components Catalog # DescriptionFirestop Spacer TR11T PRE-INSTALLATION Preparation Fireplace Locations and Space RequirementsFraming the Fireplace Sidewalls/SurroundsUsing Offsets and Returns Offset/Returns Offset ChartChimney Requirements Chimney Height Requirements above roof line Number of Sections RequiredInstallation of Fireplace Position the FireplacePlace the Protective Metal Hearth Strips Level the FireplaceInstall Firestop Spacers Assemble Chimney SectionsDouble-check the Chimney Assembly Attic Insulation ShieldSecure the Chimney System Install the Roof Flashing Install the Outside Air KitInstall the Chimney Air Kit Mark the Exit Point of the RoofComplete the Enclosure Gas Log/Lighter ProvisionsHearth Extension Factory Built Hearth ExtensionPosition the Hearth Extension Finishing MaterialMantel Glass DoorsConstructing a Chase MaterialsChase Top Termination CapOperating Instructions General Information Outside AirFlue Damper Grate FirescreenWood 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

T4200 specifications

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