Majestic STR33, CVR42, STR36, STR42, CVR36 manual Chimney Supports, Chase Installation

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STR/CVR Series Woodburning Fireplaces

Chimney Supports

The chimney system is supported by the fireplace for vertical chimney heights less than 20' (6m) above the hearth. Chimney supports are required if the vertical height exceeds 20' (6m). Locate chimney supports at ceiling holes or other structural framing at 20' (6m) heights. Spacing between chimney supports must not exceed 20' (6m). Use Chimney Support Model SKCS8 for SK8 chimney, and Model 11CS for 11CF chimney.

(NOTE: the chimney support 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" (64mm) long when installed.)

Angled chimney runs require a support every 6' (1.8m) in addition to the elbow straps. Chimney supports are used for this function. (Fig. 9)

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. (Page 5, Fig. 4)

If you need help in determining fireplace location or how the chimney system should be run, contact your Majes- tic dealer for assistance.

Chimney Sup- port Strap

SKCS8

FP284

Fig. 8 Chimney support installation

Installation

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. 9)

When a fireplace is installed in a chase or on a 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. 4)

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. (Page 14, Fig. 20)

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Contents STR/CVR Series Safety Information Table of ContentsSTR Series Woodburning Fireplace CVR Series Woodburning FireplaceSTR/CVR Series Woodburning Fireplace Chase Installation 30˚ Elbow Offsets Illustration KeyPlanning Information Mounting the FireplacePlanning the Chimney Run Ten Foot RuleInstallation Chase InstallationChimney Supports Insulating Fireplace Enclosure for Cold ClimatesStraight-Up Chimney Installation Offset InstallationFraming Chimney Set-upFraming the Ceiling Hole Ceiling Chimney Hole Possible ObstructionsCutting the Hole Positioning, Safety Strips Securing the Fireplace Outside Air KitProper Firestop Spacer Installation Installing the Chimney SystemInstalling the Firestop Spacer Ceiling Hole Continue Installing Pipe to Complete Run Canadian Requirements For Insulation ShieldAdditional Ceilings Penetrating the RoofInstall Remainder of Chimney Sections Installing Top Housing or TerminationInstalling Chimney In a Chase Air Space ClearancesSTR/CVR Series Woodburning Fireplaces Side Wall Protection Examples of wall shield insulationMinimum Wall Clearances Minimum Hearth Extension DimensionsHearth Installation Common Materials and Factors Installing Line for Gas Logs Gas line accessCVR36/42 Series STR33/36/42 Series Accessories 33GDKDP STR33 36GDKDP STR36 42GDKDP STR42Chimney Components RLTSK8Chimney Components, contd STR/CVR Series Woodburning Fireplaces STR/CVR Series Woodburning Fireplaces Limited Warranty & 30 Year Protection Plan For Majestic Fireplaces PRE-ENGINEERED Fireplace SystemsCFM Corporation