E. Install the Logs

WARNING

Fire Risk

Explosion Risk

Personal Injury Risk

Failure to position the parts in accordance with the diagrams provided with the log packages or failure to use only parts approved with this appliance may result in property damage or personal injury.

•Install the logs using the installation instructions included with them.

•Light the burner as outlined in the operating section. Allow the flame pattern to stabilize. If you are satisfied with the flame pattern go to the next step. If you want more or less flame around the front log, turn off the gas and move the grate backward or forward.

•Once you are satisfied, turn on the gas and go on to the next step.

•Arrange the top logs as shown in your log set up instructions. Light the burner as outlined in the operating instructions and allow the flame to stabilize.

•Spread the lava rock around the outside of the burner pan on the floor of the fireplace. If possible, cover the gas connector with the cinders.

Note: If your log set is the burnt-out type, place the rock wool in the center of the logs to give a glowing ember effect.

F. Adjust the Burner Flame

•The burner flame can be adjusted at the manual shutoff valve beside the fireplace to obtain the desired flame appearance.

•The flame color will stabilize after ten minutes of operation.

G. Inspect the Venting System

The fireplace venting system is designed and constructed to develop a positive flow adequate to remove flue gases to the outside atmosphere. See fireplace installation instructions.

Aspillage test must be made before the installed appliance is left with the consumer

•Close all doors and windows in the home.

•Light the log set.

•After three minutes, test with a smoke match, smoke candle, stick incense or cigarette one inch below the top of the opening (lintel) moving across the full width. If spillage (smoke drawn into the room) occurs, it will most likely be near the top, outside corners.

Possible Cures if Spilling Occurs

•The damper should be fully open.

•The fireplace opening needs to be reduced by adding a drop panel across the top under the lintel.

•The air supply from outdoors needs to be increased. Open the outside air kit if the appliance is so equipped, or crack open a door or window.

•If necessary, seek expert advice. Do not operate this appliance.

Cleaning

•Periodic examination and cleaning of the venting system of the fireplace should be done before initial use and at least annually by a qualified agency.

WARNING

Fire Risk

Explosion Risk

Inspect external vent cap regularly.

•Ensure no debris blocks cap.

•Combustible materials blocking cap may ignite.

•Restricted air flow affects burner operation.

10

Hearth & Home Technologies • Fireside Burner/Hearth Kits • 4004-304 Rev C • 08/2010

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Hearth and Home Technologies MHK18NG, STMHK24NG Install the Logs, Adjust the Burner Flame, Inspect the Venting System
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MHK18NG, STMHK24NG, MTMHK18NG, MHK24NG specifications

Hearth and Home Technologies has consistently delivered innovative heating solutions, and their line of gas fireplaces is no exception. The MHK24NG, MTMHK18NG, STMHK24NG, and MHK18NG models exemplify the brand's commitment to quality, efficiency, and style.

The MHK24NG is a powerful natural gas fireplace that boasts a heat output of up to 29,000 BTUs. Its clean lines and contemporary design make it a perfect addition to modern spaces, while the impressive heat output ensures warmth in larger rooms. An included hand-held remote control adds convenience, allowing users to adjust settings without leaving their seats.

Similarly, the MTMHK18NG offers versatility with a slightly smaller footprint, providing up to 20,000 BTUs. Designed for easy installation, this model features an adjustable flame and a variety of decorative media options, allowing homeowners to customize the look of their fireplace. The MTMHK18NG's compact size makes it an excellent choice for smaller rooms or apartments, where space is at a premium.

The STMHK24NG combines traditional aesthetics with modern technology. It provides a remarkable 32,000 BTUs and includes advanced safety features, such as a built-in oxygen depletion sensor, which automatically shuts off the gas supply if it detects low oxygen levels. This model also provides an array of interchangeable front options, ensuring that it can complement any home decor or personal style.

The MHK18NG rounds out the lineup with its unique balance of efficiency and design. With a heat output of 18,000 BTUs, this fireplace is ideal for those seeking a cozy atmosphere without excessive energy consumption. It is equipped with an easy-to-use remote control and features such as adjustable flame height and temperature control, making it a user-friendly option for all home styles.

All four models are designed with energy efficiency in mind, meeting rigorous Environmental Protection Agency standards. They contribute to reduced energy consumption while providing ample warmth. The use of advanced gas technology in these fireplaces ensures consistent performance and reliable operation throughout their lifespan.

In summary, Hearth and Home Technologies’ MHK24NG, MTMHK18NG, STMHK24NG, and MHK18NG gas fireplaces showcase the perfect blend of style, technology, and performance. Whether enhancing the comfort of a contemporary home or adding warmth to a more traditional space, these models offer a range of features designed to meet diverse needs and preferences. With safety and efficiency at the forefront, these gas fireplaces are a superior choice for anyone looking to enhance their living space with both aesthetics and functionality.
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