MONESSEN LSTF36-B Vent Free Firebox Owner’s Manual

MONESSEN LSTF36-B Vent Free Firebox

Product Information

Specifications:

• Model: LSTF36-B
• Maximum BTU/hr: 40,000
• Recommended Installation by Qualified Personnel

Product Usage Instructions

1. Welcome
   Congratulations on your purchase! Please read through the manual carefully for proper installation and operation.

2. Important Safety and Operating Information
   Review all safety guidelines before using the product to prevent any accidents or injuries.

3. General Installation Information

   • Before You Start: Ensure you have all the necessary tools for installation as listed in the manual.
   • Check Parts: Verify that all parts are included before beginning the installation process.

4. Firebox and Framing Dimensions
   Refer to the dimensions provided in the manual to ensure proper sizing for the firebox and framing.

5. Hearth Dimensions and Firebox Locations
   Follow the guidelines for hearth dimensions and firebox locations to ensure safe installation.

6. Clearances
   Ensure proper clearances are maintained as per the installation manual to prevent overheating or fire hazards.

7. Fireplace, Canopy, and Gas Line Installation
   Secure and level the appliance according to the instructions provided. Install gas connections carefully.

8. Combustion Air
   Install the combustion air assembly as specified to ensure proper ventilation.

9. Optional Equipment
   Consider installing optional equipment like a forced air kit, refractory, accent light kit, or door kit for enhanced functionality.

FAQ:

• Q: Can I install the appliance myself?
  A: It is recommended to have the appliance installed by qualified professionals to ensure safety and proper functioning.

• Q: What should I do if I encounter issues during installation?
  A: Refer to the troubleshooting section of the manual or contact customer support for assistance.

INSTALLER:
Leave this manual with the party responsible for use and operation.

OWNER: Retain this manual for future reference.

NOTICE: DO NOT discard this manual!

• Carefully review the instructions supplied with the decorative type unvented room heater for the minimum fireplace size requirement.
• DO NOT INSTALL AN APPLIANCE IN THIS FIREBOX UNLESS THIS FIREBOX MEETS THE MINIMUM DIMENSIONS REQUIRED FOR THE INSTALLATION.

WARNING:
If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury, or death.

• DO NOT store or use gasoline or other flam-mable vapours and liquids in the vicinity of this or any other appliance.
• DO NOT overfire. Overfiring will void your warranty.
• Comply with all minimum clearances to combustibles as specified. Failure to comply may cause a house fire.

WARNING

HOT SURFACES!
Glass and other surfaces are hot during operation AND cool down.

Hot glass will cause burns.

• DO NOT touch glass until it is cooled
• NEVER allow children to touch glass
• Keep children away
• CAREFULLY SUPERVISE children in the same room as the fireplace.
• Alert children and adults to the hazards of high temperatures.

High temperatures may ignite clothing or other flammable materials.

• Keep clothing, furniture, draperies and other flammable materials away.

Installation and service of this appliance should be performed by qualified personnel. Hearth & Home Technologies recommends HHT factory-trained or NFI- certified professionals.

For use with a listed gas-fired unvented decorative room heater not to exceed 40,000 BTU/hr. Do not build a wood fire.

Safety Alert Key:

• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
• CAUTION! Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.
• NOTICE: Indicates practices that may cause damage to the fireplace or property.

ATTENTION INSTALLER:

Follow this Standard Work Checklist
This standard work checklist is to be used by the installer in conjuction with, not instead of, the instructions contained in this installation

WARNING!
Risk of Fire or Explosion! Failure to install a fireplace according to these instructions can lead to a fire or explosion.

Fireplace Install

• Wiring has been installed if necessary. Verified clearances to combustibles. (Pg. 12)
• The fireplace is levelled and secured. (Pg. 14)
• Hearth extension size/height decided. (Pg. 12)
• Outside air kit installed. (Pg 16) Optional

Finishing

• Combustible materials are not installed in non-combustible areas.
• Verified all clearances meet installation manual requirements.
• Mantels and wall projections comply with installation manual requirements.
• Hearth extension installed per manual requirements.

Fireplace Setup

• All packaging and protective materials were removed.
• Refractory installed correctly.
• Firescreen installed properly.
• The manual bag and all of its contents are removed from the fireplace and given to the party responsible for use and operation.
• The blower kit was installed properly. (Optional)
• The light kit was installed properly. (Optional)
• The door kit was installed properly. (Optional)

Hearth & Home Technologies recommends the following:

• Photographing the installation and copying this checklist for your file.
• This checklist remains visible at all times on the fireplace until the installation is complete.

Comments: Further description of the issues, who is responsible (Installer/Builder/Other Trades, etc.) and corrective action needed:

Welcome
Read this manual before installing or operating this fireplace. Please retain this manual for future reference.

Congratulations

• Congratulations on selecting a Monessen Hearth gas firebox. It is designed to provide the utmost in safety, reliability, and efficiency.
• As the owner of a new fireplace, you’ll want to read and carefully follow all of the instructions contained in this manual. Pay special attention to all Cautions and Warnings.
• This manual should be retained for future reference. We suggest that you keep it with your other important docu-ments and product manuals.
• Your new Monessen vent-free fireplace will give you years of durable use and trouble-free enjoyment. Welcome to the Monessen family of fireplace products!
• Monessen is a registered trademark of Hearth & Home Technologies.

Local Dealer Information

DEALER:
Fill in your name, address, phone and email information here and fireplace information below.

Fireplace Information:

• Brand: ____ Model Name: ___
• Serial Number: __ Date Installed: __

LIMITED LIFETIME WARRANTY

Hearth & Home Technologies LLC LIMITED LIFETIME WARRANTY
Hearth & Home Technologies LLC (“HHT”) extends the following warranty for HHT gas, wood, pellet and electric hearth appliances (each a “Product” and collectively, the “Product(s)”) and certain parts outlined in the table below (“Component Part(s)”) that are purchased from a HHT authorized dealer or distributor.

WARRANTY COVERAGE:
HHT warrants that the Products and their Component Parts will be free from defects in materials and workmanship for the applicable period of Warranty coverage outlined in the table below (“Warranty Period”). If a Product or Component Parts are found to be defective in materials or workmanship during the applicable Warranty Period, HHT will, at its option, repair the applicable Component Part(s), replace the applicable Component Part(s), or refund the purchase price of the applicable Product(s). The maximum amount recoverable under this Warranty is limited to the purchase price of the Product. This Warranty is transferable from the original purchaser to subsequent owners, but the Warranty Period will not be extended in duration or expanded in coverage for any such transfer. This Warranty is subject to conditions, exclusions, and limitations as described below.

WARRANTY PERIOD:
Warranty coverage begins at the date of installation. In the case of new home constructions, Warranty coverage begins on the date of first occupancy of the dwelling or six months after the sale of the Product(s) by an independent, authorized HHT dealer or distributor, whichever occurs earlier. However, the Warranty coverage shall commence no later than 24 months following the date of Product shipment from HHT, regardless of the installation or occupancy date.
The term “Lifetime” in the table below is defined as 20 years from the beginning date of warranty coverage for gas appliances, 10 years from the beginning date of warranty coverage for wood and pellet appliances, and 5 years from the beginning of warranty coverage for standalone gas log sets. These periods reflect the minimum expected useful lives of the designated Component Parts under normal operating conditions.

WARRANTY CONDITIONS:

• Because HHT cannot control the quality of any Products sold by unauthorized sellers, this Warranty only covers Products that are purchased through an HHT authorized dealer or distributor unless otherwise prohibited by law; a list of HHT authorized dealers is available on the HHT branded websites.
• This Warranty is only valid while the applicable Product remains at the site of original installation.
• This Warranty is only valid in the country in which the HHT-authorized dealer or distributor that sold the applicable Product is authorized to sell the applicable Product.
• Contact your installing distributor or dealer for Warranty service. If the installing dealer or distributor is unable to provide the necessary parts, contact the nearest HHT-authorized dealer or supplier. Additional service fees may apply if you are seeking Warranty service from a dealer other than the dealer from whom you originally purchased the applicable Product.
• No HHT consumer should bear the cost of warranty service or costs incurred while servicing warranty claims (i.e., travel, gas, or mileage) when the service is performed within the terms of this Warranty. Check with your dealer or distributor in advance for any costs to you when arranging a warranty call. Travel and shipping charges for parts are not covered by this Warranty.

WARRANTY EXCLUSIONS:
This Warranty does not cover the following:

• Changes in surface finishes as a result of normal use. As a heating appliance, some changes in the colour of interior and exterior surface finishes may occur. This is not a flaw and is not covered under the Warranty.
• Damage to printed, plated, or enamelled surfaces caused by fingerprints, accidents, misuse, scratches, melted items or other external sources and residues left on the plated surfaces from the use of abrasive cleaners or polishes.
• Repair or replacement of parts that are subject to normal wear and tear during the Warranty Period are not covered. These parts include paint, wood and pellet gaskets, firebricks, grates, flame guides, batteries and the discolouration of glass.
• Minor expansion, contraction, or movement of certain parts causing noise. These conditions are normal and complaints related to this noise are not covered by this Warranty.
• Damages resulting from: (1) failure to install, operate, or maintain the applicable Product in accordance with the installation instructions, operating instructions, and listing agent identification label furnished with the applicable Product; (2) failure to install the applicable Product in accordance with local building codes; (3) shipping or improper handling; (4) improper operation, abuse, misuse, continued operation with damaged, corroded or failed components, accident, or improperly/incorrectly performed repairs; (5) environmental conditions, inadequate ventilation, negative pressure, or drafting caused by tightly sealed constructions, insufficient make-up air supply, or handling devices such as exhaust fans or forced air furnaces or other such causes; (6) use of fuels other than those specified in the operation instructions; (7) installation or use of components not supplied with the applicable Product or any other components not expressly authorized and approved by HHT; (8) modification of the appliance not expressly authorized and approved by HHT in writing; and/or (9) interruptions or fluctuations of electrical power supply to the applicable Product.
• Non-HHT venting components, hearth connections or other accessories used in conjunction with the applicable Product.
• Any part of a pre-existing fireplace system in which an insert or a decorative gas applicable Product is installed.
• HHT’s obligation under this Warranty does not extend to the Product’s capability to heat the desired space. Information is provided to assist the consumer and the dealer in selecting the proper product for the application. Consideration must be given to the Product location and configuration, environmental conditions, insulation and air tightness of the structure.

This warranty is void if:

• The applicable Product has been over-fired and operated in atmospheres contaminated by chlorine, fluorine, or other damaging chemicals. Over-firing can be identified by, but not limited to, warped plates or tubes, deformation/warping of interior cast iron structure or components, rust-coloured cast iron, bubbling, cracking and discolouration of steel or enamel finishes.
• The applicable Product is subjected to prolonged periods of dampness or condensation.
• There is any damage to the applicable Product due to water or weather damage which is the result of, but not limited to, improper chimney or venting installation.

LIMITATIONS OF REMEDIES AND LIABILITY:
EXCEPT TO THE EXTENT PROVIDED BY LAW, HHT MAKES NO EXPRESS WARRANTIES OTHER THAN THE WARRANTY SPECIFIED HEREIN. The owner’s exclusive remedy and HHT’s sole obligation under this Warranty or in contract, tort or otherwise, shall be limited to replacement of the Component Part(s), repair of the Component Part(s), or refund of the original purchase price of the applicable Product(s), as specified above; provided, however, that (i) if HHT is unable to provide replacement of the Component Part(s) and repair of the Component Part(s) is not commercially practicable or cannot be timely made, or (ii) the customer is willing to accept a refund of the purchase price of the applicable Product(s), HHT may discharge all such obligations by refunding the purchase price of the applicable Product. In no event will HHT be liable for any incidental or consequential damages caused by defects in the applicable Product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This Warranty gives you specific legal rights and you may also have other rights which vary from State to State. THE DURATION OF ANY IMPLIED WARRANTY IS LIMITED TO THE DURATION OF THE EXPRESSED WARRANTY SPECIFIED ABOVE FOR THE APPLICABLE PRODUCT. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

Important Safety and Operating Information

INSTALLER
Please leave these instructions with the appliance.

OWNER
Please retain these instructions for future reference.

WARNING!

• Any change to this heater or its controls can be dangerous.
• Improper installation or use of the heater can cause serious injury or death from fire, burns, explosion or carbon monoxide poisoning.
• Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner flame patterns.
• Do not use a blower insert, heat exchanger insert or other accessory, not approved for use with this heater where applicable.

1. Due to high temperatures, the firebox should be located out of traffic and away from furniture and draperies.

2. Children and adults should be alerted to the hazard of high surface temperature and should stay away to avoid burns or clothing ignition.

3. Young children should be carefully supervised when they are in the same room with the firebox.

4. Do not place clothing or other flammable material near the fireplace when the firebox is in use.

5. Any safety screen or guard removed for servicing must be replaced before operating a heater within the firebox.

6. Installation and repair should be done by a qualified service person.

7. To prevent malfunction and/or sooting, an unvented gas heater/firebox should be cleaned at least annually by a professional service person. More frequent cleaning may be required due to excessive lint from carpeting, etc. Control compartments, burners and circulating air passageways must be kept clean.

8. CARBON MONOXIDE POISONING: Early signs of carbon monoxide poisoning are similar to the flu with headaches, dizziness and/or nausea. If you have these signs, obtain fresh air immediately. Have the heater serviced as it may not be operating properly?

9. The installation must conform with local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.l/NFPA54.

10. This unit complies with CSA/ANSI Z21.91-2020 vent-less firebox enclosures for gas-fired unvented decorative room heaters.

11. Do not install the unvented heater in a bathroom.

12. Do not install the unvented heater in a bedroom unless the maximum input rating is equal to or less than 10,000 Btu/hr.

13. Correct installation of the ceramic fibre logs, proper location of the heater, and annual cleaning are necessary to avoid potential problems with sooting. Sooting, resulting from improper installation or operation, can settle on surfaces outside the fireplace. See log placement instructions for proper installation.

14. Avoid any drafts that alter burner flame patterns. Do not allow fans to blow directly into the fireplace. Do not place a blower inside the burn area of the firebox. Ceiling fans may create drafts that alter burner flame patterns. Sooting and improper burning will occur.

15. CAUTION: Candles, incense, oil lamps, etc. produce combustion by-products including soot. Vent-free appliances will not filter or clean the soot produced by these types of products. In addition, the smoke and/or aromatics (scents) may be re-burnt in the vent-free appliance which can produce odours. It is recommended to minimize the use of candles, incense, etc. while the vent-free appliance is in operation.

16. An unvented gas-fired heater uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided. See installation guidelines.

17. Keep room area clear and free from combustible materials, gasoline and other flammable vapours and liquids.

18. Unvented gas heaters are supplemental zone heaters. They are not intended to be a primary heating appli-ance.

19. Unvented gas heaters emit moisture into the living area. In most homes of average construction, this does not pose a problem. In houses of extremely tight construction, additional mechanical ventilation is recommended.

20. During manufacturing, fabricating and shipping, various components of this appliance are treated with certain oils, films or bonding agents. These chemicals are not harmful but may produce annoying smoke and smells as they are burned off during the initial operation of the appliance; possibly causing headaches, or eye or lung irritation. This is a normal and temporary occurrence.
    The initial break-in operation should last two to three hours with the burner at the highest setting. Provide maximum ventilation by opening windows or doors to allow odours to dissipate. Any odours remaining after this initial break-in period will be slight and will disappear with continued use.

21. Input ratings are shown in BTU per hour and are for elevations up to 2,000 feet. For elevations above 2,000 feet, input ratings should be reduced by 4 per cent for every 1,000 feet above sea level. Refer to the National Fuel Gas Code.

22. The appliance and its main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures over 1/2 psig (3.5 kPa).

23. The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).

24. Do not use this room heater if any part has been underwater. Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control that has been under water.

25. Never burn solid fuels in a fireplace where an unvented room heater is installed.

26. Always have a fireplace screen in place when the appliance is in operation, and unless other provisions for combustion air are provided, the screen shall have an opening(s) for induction of combustion air.

27. Do not fill spaces around the firebox with insulation or other materials. These spaces must be maintained to prevent the firebox from coming in contact with com-combustibleerials.

WARNING!
Do not attempt to burn solid wood fuels, vented gas log sets, or any other combustible in this unvented firebox. Also, do not install a vent-free gas log set in this firebox if the minimum clearance and height requirements of the log set are too large for the firebox.

Notice:
Illustrations shown in this manual reflect “typical” installations with nominal dimensions and are for design and framing reference only. Actual installations may vary due to individual design preferences. However, always maintain minimum clearances to combustible materials and do not violate any specific installation requirements.

WARNING!
Never connect the unit to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

IMPORTANT:
Please Read the Following Carefully

It is normal for fireplaces fabricated of steel to give off some expansion and/or contraction noises during the start-up and cool-down cycle. Similar noises are found with your furnace heat exchanger or car engine.

General Installation Information

The new LSTF36-B is a vent-free firebox. It features a self-contained heat- circulating system. This installation manual will enable you to obtain a safe, efficient and dependable installation of this vent-free fireplace system. Do not alter or modify the firebox or its components under any circumstances. Any modification or alteration of the firebox system, including but not limited to the firebox and accessories, may void the warranty, listings and approvals of this system and could result in an unsafe and potentially dangerous installation.

BEFORE YOU START
Carefully inspect the contents for shipping damage. If any parts are missing or damaged, immediately inform the dealer from whom you purchased the appliance. Do not attempt to install any part of the appliance unless you have all the parts in good condition.

Note:
If using a blower or light kit, electrical connections should be made before the firebox is enclosed by the finished walls.

MAKE SURE YOU HAVE RECEIVED ALL PARTS
Verify contents to ensure all parts have been received. The following should be included:

1. Vent Free Gas Firebox
2. Canopy (2)
3. Installation and Operating Instructions

WHAT YOU WILL NEED FOR INSTALLATION

TOOLS and BUILDING SUPPLIES

• Phillips screwdriver
• Framing materials
• Saw and/or sabre saw
• Level
• Measuring tape
• Electric drill and bits
• Fireplace surround materials (noncombustible)
• Caulking material (noncombustible)
• Wall finishing materials
• Piping complying with local codes
• Pipe sealant approved for use with propane/L.P.G.(resistant to sulphur compounds)
• Square
• Hammer
• Tee joint
• Pipe wrench
• Pliers

Refer to the installation instructions provided with the log sets for items required for log set installation.

Firebox and Framing Dimensions

PLANNING THE INSTALLATION
In planning the installation for the appliance it is necessary to determine where the unit is to be installed and whether optional accessories are desired. Gas supply piping should also be planned. The following steps represent the normal sequence of installation. Each installation is unique, however, and might require a different sequence.

1. Position the firebox before framing or into prepared framing.
2. The canopy supplied with the unit must be installed. See Canopy Installation on page 15.
3. Field wire main power supply to circulating models with fan kit or accent light kit. (Electrical connections should only be performed by an experienced, licensed/certified tradesman.)
4. Plumb gas line. (Gas connections should only be performed by an experienced, licensed/certified tradesman.)
5. Install vent vent-free gas log heater per the instructions provided with the vent-free gas log heater.
6. Complete finish wall material and surround to your taste.

Notice:
Illustrations displayed in this manual reflect “typical” installations with nominal dimensions and are for design and framing reference only. Actual installations may vary due to individual design preferences. However, always maintain minimum clearances to combustible materials and do not violate any specific installation requirements.

FIREPLACE FRAMING

WARNING!
The fireplace must be installed giving full consideration to the clearance and height requirements identified in this manual.

Hearth Dimensions and Firebox Locations

FIREBOX LOCATION
Carefully select the best location for the installation of your vent-free firebox. The following factors should be taken into consideration:

• Clearance to side wall, ceiling, woodwork and windows. See “Clearances/Height Requirements on page 12. Minimum clearances to combustibles must be maintained.
• The location must not be affected by drafts caused by kitchen exhaust fans, ceiling fans, return air registers for forced air furnaces/air conditioners, windows or doors.
• Installation must provide adequate ventilation and combustion air.
• The location should be out of high traffic or windy or drafty areas.
• DO NOT INSTALL WHERE CURTAINS, FURNITURE, CLOTHING OR OTHER FLAMMABLE OBJECTS ARE LESS THAN 42″ FROM FRONT OF THE HEATER.
• Never obstruct the front opening of the vent-free firebox or restrict the flow of combustion and ventilation air.
• Do not install in the vicinity where gasoline or other flammable liquids may be stored. The vent-free firebox must be kept clear and free from these combustible materials.

Clearances

Ensure that minimum clearances shown in Figures 6.1 through 6.4 are maintained. Left and right clearances are determined when facing the front of the firebox.

Follow these instructions carefully to ensure safe installation. Failure to follow these requirements may create a fire hazard.

1. Sidewall clearances: The clearance from the inside of the appliance to any combustible wall should not be less than 6″. See Figure 6.1.

2. Ceiling clearance: The ceiling must be at least 42″ from the top of the firebox opening. See Figure 6.1.

3. Back wall clearance: The appliance may be placed against a combustible back wall.

4. Parallel wall clearances: The clearance from the opening of the firebox to any wall that is parallel to the opening should not be less than 36″. See Figure 6.2. NOTE:
   The canopy supplied with the unit must be installed for correct mantel clearances.

5. Mantel clearances: If a combustible mantel is installed, it must meet the clearance requirements as shown in Figures 6.3 & 6.4.

6. Floor clearance: This inner chamber firebox floor must be installed at least 1″ above any combustible flooring material, such as carpeting or asphalt tile, which is closer than 14″ to the base of the firebox. See Figure 6.5. Or
   The inner chamber firebox floor may be installed nearer to the floor if a minimum of 14″ of noncombustible material such as slate or marble is installed between the base of the firebox and the combustible flooring. See Figure 6.6 Firebox framing can be built before or after the appliance is set in place. Construct firebox framing following Figure 4.1 for your specific installation requirements. Refer to Figure 4.1 on page 9 for firebox dimensions. The framing headers may rest on the top of the firebox standoffs. The firebox may be installed directly on a combustible floor or raised on a platform of an appropriate height. When the firebox is installed directly on carpeting, tile, or other combustible material, other than wood flooring, the firebox shall be installed on a metal or wood panel extending the full width and depth of the enclosure.
   The classification “non-combustible material includes, but is not limited to stone, brick, and mortar. Non-combat-tables are safe to overlay the black- painted metal face, including radiant plates, and do not pose a fire hazard. Any non-combustible finish material must not extend past or interfere with the fireplace opening.
   The classification “combustible material,” includes, but is not limited to: plywood, drywall, and particle board. Combustible materials may contact the sides, bottom, or back of the firebox. Do not overlay the black-painted face with combustible.
   WARNING!

   • Do not fill spaces around the firebox with insulation or other materials. This could cause a fire.
   • The fireplace must be installed giving full consideration to the clearance and height requirements identified in this manual.

7. Vinyl Flooring

   • Vinyl Flooring is sensitive to heat. A 14-inch minimum depth hearth extension is recommended when using vinyl flooring up to the wall. See Figure 6.7.
   • NOTICE: Clearances that do not meet the minimum guidelines could result in damage or buckling to the vinyl flooring and are done at the installer’s risk.
   • Hearth and Home Technologies does not recommend adhesive-based vinyl flooring due to thermal expansion. Floating-style flooring can be used but will reach temperatures up to 110°F in a room with an ambient temperature of 70°F. Consult flooring specifications to ensure compatibility.

Fireplace, Canopy and Gas Line Installation

SECURING AND LEVELING THE APPLIANCE

1. Bend out the nailing flanges located on each side of the firebox.
2. Slide the firebox into prepared framing or position the firebox in its final position and frame it later.
3. Level the firebox by checking the top edge of the firebox. Shim if necessary.
4. Anchor the firebox to the side framing members using 8D nails or other suitable fasteners. Figure 7.1
5. The canopy must be installed for safe operation of the firebox.

CANOPY INSTALLATION
A canopy is furnished with each firebox and MUST be installed for safe operation.

1. Locate three (3) screws at the front edge of the face (one at each end and one in the centre). Loosen screws slightly, slide canopy slots against screws and tighten in place. Repeat for the other side. Figure 7.2.

WARNING!

• The firebox canopy must not be modified or replaced with a canopy that may be provided with the vent-free decorative room heater.
• Close the fireplace screen panel before operating a decorative-type vent-free room heater.

GAS CONNECTIONS

WARNING!
Plumbing connections should only be performed by a qualified, licensed plumber. The main gas supply must be off when plumbing the gas line to the fireplace or performing service.

• Consult all local codes. All gas piping must be installed to comply with local codes, or in the absence of local codes, with the latest edition of the National Fuel Gas Code ANSI Z223.1/NFPA54.
• A listed manual shutoff valve must be installed upstream of the appliance. A union tee and plugged 1/8″ NPT pressure tapping point should be installed upstream of the appliance.
• IMPORTANT: Install the main gas valve (equipment shutoff valve) in an accessible location. The main gas valve is for turning on or shutting off the gas to the fireplace.
• A sediment trap may be upstream of the heater to prevent moisture and contaminants from passing through the trap to the heater controls and burners. Failure to do so could prevent the heater from operating reliably. Consult applicable codes.
• An external regulator must be used on all propane/L.P.G. heaters, in addition to the regulator fitted to the heater, to reduce the supply tank pressure to 13″ w.c. (maximum). Any copper tubing used to supply propane / L.P.G. from the tank must be internally tinned.
• NOTE: When connecting propane / L.P.G. vent-free room heaters, you must use pipe sealant resistant to propane / L.P.G.
• IMPORTANT: Hold the heater regulator with a wrench to prevent movement when connecting to inlet piping.
• Check gas type: The gas supply must be the same as stated on the heater’s rating plate. If the gas supply is different, DO NOT INSTALL THE HEATER. Contact your dealer for the correct model.

WARNING!

• Connecting directly to an unregulated propane/L.P.G. tank can cause an explosion.
• Do not connect directly to natural gas 1/2 PSI or 2 PSI systems. Always make sure natural gas pressure is regulated at 10.5 w.c. (maximum before operating the unit).

Notice:
After completing the connection, test all gas joints from the gas meter to the gas heater regulator for leaks. Using soap and water solution or a gas sniffer. DO NOT USE AN OPEN FLAME.

Combustion Air

AK22 INSTALLATION

Note:
The AK22 is an optional accessory that can be used to bring in fresh air. Use of the AK22 is not required for operation unless specified by local codes.

1. Locate the combustion air assembly at an exterior location that is not likely to be accidentally blocked in any manner. Locate assembly a min. of 12″ above the snow line to prevent blockage by snow accumulation.
2. Never mount the combustion air inlet assembly in a garage or storage area where combustible fumes such as gasoline might be drawn into the fireplace.
3. Combustion air can be drawn from the crawl space under a house when an adequate supply of air is provided by open ventilation.
4. CAUTION: Do not take combustion air from attic space or garage space.
5. Locate the air supply inlet at least 3′ away from any appliance vent terminal.
6. Avoid extremely long runs and numerous turns in the duct leading from the fireplace to the combustion air assembly. These conditions increase the resistance to the free flow of air through the duct. Refer to Figures 8.1 through 8.4 for methods of installing the outside air for combustion assemblies.

NOTE:
The fireplace model in illustrations may not be representative of your appliance.

WARNING!
DO NOT remove the cover on the side of the firebox if the outside air will not be connected.

Step-by-Step Installation

1. Attach the collar to the side of the fireplace by aligning the four holes in the collar with the four holes on the fireplace side. Attach with the screws provided. See Figure 8.6.
2. Mark and cut out a 4 in. (102 mm) hole in the building side for air entry. This hole should allow for some framing (two sides) so the hooded air inlet may be nailed into position, flush with the building’s outside.
3. Install hooded air inlet in the sidewall of the structure.
4. Assemble the flexible duct ID4 or UD4 (not supplied) between the collar and the hooded air inlet. Secure it into position with the supplied wire ties.

Optional Equipment

FORCED AIR KIT (BLOTDL)
If you are installing the forced air kit, Model BLOTDL, see the installation instructions provided with the kit for electri-cal wiring requirements. The firebox must be connected to the main power supply at the time of firebox installation. The blower must be installed before the installation of the vent-free heater. The electrical connections must be made before the firebox is framed and enclosed in the finished walls.

WARNING!

• Electrical connections should only be performed by a qualified, licensed electrician, the main power must be off when connecting to the main electrical power supply or performing service.
• When installed, the blower must be electrically grounded by local codes or the absence of local codes, with the National Electrical Code ANSI/NFPA 70.

REFRACTORY

• The LSTF36-B is shipped with factory-installed refractory panels. Once the unit is in place, remove the shipping brackets at the four corners of the floor brick.
• NOTE: Brackets located at the top corners of the side panels remain in place. If preferred, the fire brick can be removed and the unit operated without any refractory panels.

ACCENT LIGHT KIT (MOST)
If you are installing the accent light kit, Model MONALST, see the installation instructions provided with the kit for electrical wiring requirements. The firebox must be connected to the main power supply at the time of firebox installation. The accent light must be installed before the in-installation of the vent-free heater. The electrical connections must be made before the firebox is framed and enclosed in the finished wall.

OPTIONAL DOOR KIT (DLR36B)
If you are installing the optional door kit, see the installation instructions provided with the kit.

Service Parts

Lo-Rider
36” Vent Free See Through Fireplace

IMPORTANT:
THIS IS DATED INFORMATION. Parts must be ordered from a dealer or distributor. Hearth and Home Technologies does not sell directly to consumers. Provide the model number and serial number when requesting service parts from your dealer or distributor.

ITEM

| DESCRIPTION| COMMENTS| PART NUMBER|

Stocked at Depot

---|---|---|---|---
1| Plate, Socket| Qty 2 req| SRV4607-144|
2| Plate, Firebox Outer Top|  | SRV4613-111|
3| Plate, Light Box| Qty 2 req| SRV4613-109|
4| Firebox, Access Panel|  | SRV4613-105|
5| Junction Box Cover Plate|  | SRV26548|
6| Clamp Connector|  | SRV230-1670|
7| Junction Box Cover|  | SRV4604-103|
8| Junction Box| Plastic| SRV4021-013| Y
9| Canopy| Qty 2 req| SRV4607-107|
10| Firescreen Rod| Qty 4 req| SRV12052|
11| Screen, Panel (24” W x 30” H)| Qty 4 req| SRV26D4563|
12| Retainer, Brick (Top)| Qty 4 req| 79D0087K|
 | Refractory|  |  |
13| Refractory, Side| Qty 2 req| SRV4608-708|
14| Refractory, Hearth|  | SRV4608-709|
15| Bracket, Brick Front| Qty 4 req| 71D0124K|
16| Nailing Flange| Qty 8 req| SRV31190|
 | Firebox Touch-Up Paint|  | SRV4021-110|
 | Gloss Black Corvel Aerosol|  | 71479|

• Monessen, a brand of Hearth & Home Technologies 7571 215th Street West, Lakeville, MN 50044.
• www.monessenhearth.com.

References

• Monessen Hearth | Vent Free Fireplaces, Fireboxes & Gas Logs

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