Vermont Casting CVR36, STR42, STR33, STR36, CVR42 Chimney Supports, Chase Installation, 7412961

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Chimney Supports

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 STR33 STR36 STR42 CVR36 CVR42 DO NOT DISCARD THIS MANUAL: Retain for future useHomeowners Installation and Operating Manual STR/CVR SeriesSafety Information Table of ContentsPrecautions STR/CVR Series Woodburning FireplacesSTR Series Woodburning Fireplace CVR Series Woodburning FireplaceSTR/CVR Series Woodburning Fireplaces 7412961STR/CVR Series Woodburning Fireplace STR/CVR Series Woodburning FireplacesSTR Fireplace CVR FireplaceChase Installation STR/CVR Series Woodburning Fireplaces7412961 Fig. 4 Fireplace and chase parts identificationChimney Requirements - Offset Installations 30˚ Elbow OffsetsIllustration Key STR/CVR Series Woodburning FireplacesPlanning Information Mounting the FireplacePlanning the Chimney Run The Ten Foot RuleInstallation Chase InstallationChimney Supports Insulating Fireplace Enclosure for Cold ClimatesStraight-UpChimney Installation Offset InstallationFraming Chimney Set-upCeiling Chimney Hole Possible Obstructions Cutting the HoleFraming the Ceiling Hole STR/CVR Series Woodburning FireplacesPositioning, Safety Strips Securing the Fireplace Outside Air KitSTR/CVR Series Woodburning Fireplaces 7412961Installing the Chimney System Installing the Firestop SpacerProper Firestop Spacer Installation in the Ceiling HoleContinue 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 7412961Mantel Clearance Mantel ClearanceSide Wall Protection STR/CVR Series Woodburning FireplacesB C C B D CMinimum Hearth Extension Dimensions Hearth InstallationMinimum Wall Clearances STR/CVR Series Woodburning FireplacesCOMMON MATERIALS AND FACTORS STR/CVR Series Woodburning FireplacesExample for Common Brick 74129617412961 Installing Line for Gas LogsSTR/CVR Series Woodburning Fireplaces CVR36/42 SERIES STR/CVR Series Woodburning FireplacesDescription CVR367412961 STR33/36/42 SERIESSTR/CVR Series Woodburning Fireplaces Accessories STR/CVR Series Woodburning FireplacesChimney Components STR/CVR Series Woodburning FireplacesU.S. Chimney Components, contd CanadaSTR/CVR Series Woodburning Fireplaces FirestopSTR/CVR Series Woodburning Fireplaces 7412961STR/CVR Series Woodburning Fireplaces 7412961LIMITED WARRANTY & 30 YEAR PROTECTION PLAN 7412961B.Firegrate, Glass Doors, Outside Air System C. Fan MotorCFM Corporation