Lennox Hearth CR-3835R installation instructions Table of Contents

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TABLE OF CONTENTS

 

 

Safety Rules

page

2

Tools and Building Supplies

page

2

Precautions

page

2

Introduction

page

3

Chimney/Mantel Clearances And

 

 

Height Requirements

page

3

Chimney System

page

3

Assembly Outline

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4

Location of Fireplace

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4

Assembly Steps

page

5

Preinstallation Notes

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5

Fireplace Clearances

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5

Installing the Fireplace

page

5

Fireplace Specifications

page

6

Framing Specifications

page

7

Installing the Chimney System

page

8

30° Offset through Floor/Ceiling

page

9

Ten Foot Rule Summary

page 11

Multiple Terminations

page 11

Chimney Component Calculations ...

page 11

Special Offset Instructions

page 11

Offset Calculations

page 12

Vertical Elevation Chart

page 13

Offset Elevation Chart

page 15

Installing Offsets

page 17

Combustion Air Kits

page 17

Gas Line Connection

page 17

Glass Doors

page 18

Cold Climate Insulation

page 18

Fireplace Finishes

page 18

Mantels and Trim

page 18

Hearth Extensions/Wall Shields

page 18

Finish Requirements

page 20

Installation Components

page 21

IMPORTANT: PLEASE READ AND UNDERSTAND THESE RULES TO FOLLOW FOR SAFETY.

1.Before starting your fireplace installation, read these installation instructions carefully to be sure you understand them completely and in entirety. Failure to follow them could cause a fireplace malfunction resulting in serious injury and/or property damage.

2.Always check your local building codes. The installation must comply with all local, regional, state and national codes and regulations.

3.These fireplaces must be installed with either Security Chimneys model FTF8 (8" [203mm] inside diameter) or FTF10 (10" [250mm] inside diameter) Chimney System only. These sys- tems are intended for use in any application where a traditional masonry type fireplace would apply. The chimney system must always vent to the outside of the building.

4.To ensure a safe fireplace system and to prevent the build-up of soot and creosote, inspect and clean the fireplace and chimney prior to use and periodically during the heating season.

5.Use solid fuel only. DO NOT use artificial wax based logs, chemical chimney cleaners or flame colorants in your fireplace.

6.DO NOT use charcoal or coal under any circumstances.

7.NEVER use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter fluid, or similar liquids to start or “freshen up” a fire in this fireplace. Keep any flammable liquids a safe distance from the fireplace.

8.NEVER leave children unattended when there is a fire burning in the fireplace.

9.Always keep flue damper open when heat is present in the fireplace.

10.Before servicing, allow the fireplace to cool. Always shut off any electricity or gas to the fireplace while working on it. This will prevent any possible electrical shock or burns.

11.This fireplace is not intended to heat an entire home or be used as a primary heat source. It is designed to ensure homeowner comfort by pro- viding supplemental heat to the room.

12.Always ensure an that adequate supply of replacement combustion air from the outside of the house is accessible to the fire to support normal combustion. Fireplaces consume large volumes of air during the normal combustion process. In the event the home is tightly sealed with modern energy efficient features, the op- tional combustion air kit may not provide all the air required to support combustion.

The manufacturer is not responsible for any smoking or related problems that may result from the lack of adequate combustion air. It is the responsibility of the builder/contractor to ensure that adequate combustion air has been provided for the fireplace.

13.DO NOT use a fireplace insert or any other products not specified herein by the manufacturer for use with this fireplace. All gas log sets must be operated with the damper clamped open.

WARNING: THIS FIREPLACE HAS NOT BEEN TESTED WITH AN UNVENTED GAS LOG SET. TO REDUCE RISK OF FIRE OR INJURY, DO NOT INSTALL AN UNVENTED GAS LOG SET INTO THIS FIREPLACE.

14."Smoke free" operation is not warranteed nor are we responsible for inadequate system draft caused by mechanical systems, general construction conditions, inadequate chimney heights, adverse wind conditions and/or un- usual environmental factors or conditions be- yond our control.

15.Never, under any circumstances, install a fireplace, chimney component or any acces- sories, that has visible or suspected physical damage as a result of handling or transporta- tion. These items should be inspected by your distributor or qualified factory representative to ensure safe condition. When in doubt, con- sult your distributor.

16.For additional safety considerations and complete operating instructions, refer to the Care and Operation Manual provided with the fireplace.

TOOLS AND BUILDING SUPPLIES NORMALLY REQUIRED

Tools should Include:

Phillips screwdriver

Hammer

Saw and/or sabersaw

Level

Measuring tape

Plumb line

Electric drill and bits

Pliers

Square

Building supplies: Framing materials Wall finishing materials

Caulking materials (noncombustible) Fireplace surround and hearth extension materials (noncombustible)

PRECAUTIONS

Note: These fireplace systems are not difficult to install. However, in the interest of safety, it is recommended that the installer be a qualified or certified “tradesman” familiar with com- monly accepted fireplace installation and safety techniques as well as prevailing local codes.

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Contents OTL Report No -F-20-4 Retain These Instructions For Future ReferenceWood Burning Fireplaces 850,048M REV. N/C 01/2007 Table of Contents General Information Typical InstallationIntroduction Chimney Clearances and Mantel Height RequirementsChase Enclosure Assembly OutlineChimney Height Before You StartInstalling the Fireplace Assembly StepsPRE-INSTALLATION Notes Fireplace ClearancesFireplace Specifications Consult all local codesFraming Specifications Room Above Firestop Spacer Attic Above Installing the Chimney System8d Nail Or Equivalent Stabilizer Or Ceiling51mm** See **Note Min. Air Space to Combustibles Roof Pitch Using a CTD Round TerminationUsing a FTF8/10-CTDT Chase Termination Flat to 6/12FTF8 and FTF10 Chimney Component Calculations TEN Foot Rule SummaryMultiple Terminations Special Offset InstructionsOffset Calculations Return Elbow Max Stabilizer 10 Max OffsetInches FTF8 Vertical Elevation ChartNumber Of FTF8 Inches Feet/Inches MetersChimney Only FTF10 Vertical Elevation ChartNumber Of FTF10 Chimney OnlyInches FTF8 Offset Elevation Chart With FTF8-SS Starter SectionFTF8-S4 Section FTF10 Offset Elevation ChartJoints FTF10-ES30 Number of FTF10Return Elbow Assembly Installing OffsetsOffset Elbow Assembly Combustion Air KitsFireplace Finishes Glass DoorsCold Climate Insulation Mantels and Trim12 305 mm Hearth Extension Dimensions 20 508 mm 38 965 mm203 mm Methods of Determining Hearth Extension and Wall ShieldRM = rM x TS = 0.05 x 3/4 = Finish to Your TasteValue = 1/k = r x thickness of material used ModelInstallation Components Cold Climate Kit 63L63 Chase Termination 63L51Square 63L52 63L29Page 850,048M REV. N/C 01/2007 Orange, CA

CR-3835R specifications

The Lennox Hearth CR-3835R is a contemporary gas fireplace that exemplifies modern design and advanced technology, creating an ideal centerpiece for any stylish living space. This model seamlessly combines aesthetic appeal with functional efficiency, making it a sought-after choice for homeowners looking to enhance their interiors.

One of the standout features of the CR-3835R is its impressive heat output. With a heating capacity of up to 35,000 BTUs, this fireplace effectively warms up areas ranging from 1,000 to 1,500 square feet, ensuring comfort during chilly months. The adjustable flame height allows users to customize the ambiance according to their preferences, providing a cozy atmosphere or a striking visual display.

The CR-3835R boasts an advanced design that incorporates a sealed firebox. This feature not only improves energy efficiency but also ensures that outdoor air doesn't compromise indoor air quality. The fireplace utilizes an electronic ignition system, which enhances convenience and reliability. With the ability to operate even during power failures, the CR-3835R is a dependable addition to any home.

Another notable characteristic of the Lennox Hearth CR-3835R is its use of high-quality materials. The fireplace is constructed with durable steel and features a refined glass front, allowing an unobstructed view of the flames. The elegant design is complemented by customizable finishing options, enabling users to select styles that align with their interior decor.

In terms of safety, the CR-3835R includes features such as a built-in safety shut-off valve, providing peace of mind for homeowners. The fireplace is also certified for use in a variety of settings, including conventional and direct vent applications. This versatility makes it suitable for a range of installation options.

Moreover, the Lennox Hearth CR-3835R is designed with user-friendly controls, including remote operation capabilities. This function allows for effortless adjustment of settings from the comfort of one's seat, adding an extra layer of convenience to the overall experience.

In summary, the Lennox Hearth CR-3835R combines stylish design, high efficiency, and advanced technology. Its impressive heat output, customizable features, and user-friendly operation make it an excellent choice for those seeking a modern gas fireplace that enhances both comfort and aesthetics in their home. With the CR-3835R, homeowners can enjoy the warmth and ambiance of a traditional fireplace, redefined for contemporary living.