Table of Contents

TABLE OF CONTENTS
Safety Rules	page	2
Tools and Building Supplies	page	2
Precautions	page	3
Introduction	page	3
Clearances/Height Requirements	page	3
Chimney System	page	3
Assembly Outline	page	4
Location of Fireplace	page	4
Assembly Steps	page	5
Preinstallation Notes	page	5
Clearances	page	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 12
Offset Calculations	page 12
Vertical Elevation Chart	page 12
Offset Elevation Chart	page 13
Installing Offsets	page 14
Optional Equipment Considerations . page 14
Forced Air Kits	page 14
Combustion Air Kits	page 15
Gas Line Connection	page 15
Vent Free Appliances	page 15
Glass Doors	page 16
Cold Climate Insulation	page 16
Fireplace Finishes	page 16
Mantels and Trim	page 16
Hearth Extensions/Wall Shields	page 16
Finish Requirements	page 18
Installation Components	page 19

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 Security Chimneys FTF8 (8" inside diameter) Chimney System only. These systems are in- tended for use in any application where a traditional masonry type fireplace would ap- ply. 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 providing 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 manufac- turer for use with this fireplace. All gas log sets must be operated with the damper clamped open, including unlisted “vent free” log sets. Listed “vent-free” log sets may be operated with the damper closed.

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)

RDI-36-H, HCI-36-H specifications

The Lennox Hearth HCI-36-H and RDI-36-H represent a pinnacle of innovation and efficiency in the world of gas fireplaces. These models are highly regarded for their combination of aesthetic appeal, advanced technology, and exceptional performance, making them an excellent choice for both new constructions and retrofitting existing spaces.

Starting with the HCI-36-H, this direct vent gas fireplace is designed for optimal heating while providing a stunning visual centerpiece. It features a sleek glass front that enhances the flame experience, showcasing the lifelike faux logs and glowing embers. The HCI-36-H is equipped with a powerful heat exchanger that maximizes heat output, ensuring your space remains warm and comfortable.

On the other hand, the RDI-36-H offers a more customizable experience. This model features a variety of decorative options, allowing homeowners to personalize their fireplace to fit their home’s aesthetic. From customizable front panels to decorative trim kits, the RDI-36-H is designed to cater to individual tastes while ensuring robust functionality.

Both models incorporate advanced technologies that improve energy efficiency and user experience. They utilize Lennox's patented flame technology, which creates a realistic fire while maintaining high efficiency. This technology also helps reduce emissions, making it an environmentally friendly choice. With an impressive efficiency rating, both units provide substantial warmth without excessive energy consumption.

User convenience is another significant aspect of these fireplaces. They come with an easy-to-use remote control, allowing you to adjust the flame height and heat output from the comfort of your couch. Additionally, the units offer a variety of safety features, including an automatic shut-off system that ensures peace of mind.

The HCI-36-H and RDI-36-H also boast a quick and straightforward installation process thanks to their direct vent capabilities, which minimize the need for extensive ductwork. This makes them ideal for existing living spaces, as well as new homes.

In conclusion, the Lennox Hearth HCI-36-H and RDI-36-H gas fireplaces epitomize the blend of design, technology, and efficiency. With features like customizable designs, advanced flame technology, and user-friendly operation, these models provide not just warmth, but a beautiful focal point that enhances any room. Whether you prioritize aesthetic or function, Lennox offers two exceptional options that cater to a variety of preferences.

Lennox Hearth HCI-36-H, RDI-36-H installation instructions Table of Contents

Models: RDI-36-H HCI-36-H

RDI-36-H, HCI-36-H specifications