Majestic Appliances ODSHR42 manual Chimney Supports, Chase Installation

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Chimney Supports

The chimney system is supported by the fireplace for vertical chimney heights less than 30 feet above the hearth. Chimney supports are required if the vertical height exceeds 30 feet with 11CF chimneys. Locate chimney supports at ceiling holes or other structural framing at 30 foot heights. Spacing between chimney supports must not exceed 30 feet. Use Chimney Support Model 11CS. (Note: The 11CS can not be mounted directly to the fireplace.) Support provided by elbow straps fulfills the support requirement only if they are spaced as previously described. (A chimney support is 2¹⁄₂" long when installed.)

Angled chimney runs require a support every six (6) feet in addition to the elbow straps. Chimney supports are used for this function. (Fig. 7)

Chase Installation

A chase is a vertical box-like structure which encloses the fireplace and/or chimney. Chases are typically built on the outside of the house with fireplace opening cut into the outer wall of a room. (Fig. 2, Page 4)

If you need help in determining fireplace location or how the chimney system should be run, contact your Vermont Castings, Majestic Products dealer for assis- tance.

Chimney

Support Strap

11CS

FP284

Fig. 7 Chimney support installation

ODSHR Series

Installation

1.Insulating Fireplace Enclosure for Cold Climates

If you live in a cold climate, it is not required but highly recommended that you insulate fireplace enclosure to eliminate cold air penetration as much as possible.

Insulate base of fireplace with a non-combustible insulation rated for a minimum of 300° F. Insulating is very important for outside wall installations over a concrete slab. If fireplace is installed on a platform, insulation should be placed on top of the platform before fireplace is set. (Fig. 8)

When a fireplace is installed in a chase or on an outside wall, enclosure should be treated like any outside wall in a home. Insulation should be installed on the inside wall as well as the outside wall(s). In a chase, it is also a good idea to install a firestop at the first ceiling level above the fireplace and enclose the chase with sheeting material. Insulation may then be installed above sheeting material to assure the space around the fireplace is totally protected. (Fig. 2)

When installing the chimney, DO NOT caulk be- tween outer pipe and firestop. It is vital that some air be allowed to flow through this very thin gap.

CAUTION: WHEN INSTALLING A FIREPLACE IN AN INSULATED ENCLOSURE, BE SURE ALL REQUIRED AIR SPACES ARE MAINTAINED. (Fig. 17, Page 13)

Hard, Flat

Surface

Insulation

Platform

FP555SHR

Fig. 8 Insulating between platform and fireplace.

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Contents Odshr Series Table Of Contents Safety InformationODSHR42 Series Woodburning Fireplace Chase Installation Chimney Requirements Offset Installations Ten Foot Rule Planning InformationMounting the Fireplace Planning the Chimney RunInsulating Fireplace Enclosure for Cold Climates InstallationChase Installation Chimney SupportsChimney Set-Up Straight-Up Chimney InstallationOffset Installation FramingFraming the Ceiling Hole Cutting the HoleInstalling Outside Air Kit Positioning, Safety Strips, Securing the FireplaceInstalling the Firestop Spacer Ceiling Hole Installing the Chimney SystemProper Firestop Spacer Installation Installing Chimney In a Chase Continue Installing Pipe to Complete RunInstall Remainder of Chimney Sections Installing Top Housing or TerminationFront View Side View Finish WallExamples of wall shield insulation Side Wall ProtectionExample of Determining Hearth Extension Equivalents Hearth InstallationExample for Common Brick Common Materials and Factors Installing Line for Gas LogsGas line access 9a,b Description Part NumberAccessory Description Model No AccessoriesFirebox Record RLTCF11LLimited Warranty & 30 Year Protection Plan Vermont Castings, Majestic Products
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