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Instructions Masonry Firebox Model MFPST-43 THIS WOOD-BURNING FIREPLACE COMPLIES WITH UL127 STANDARD AS A FACTORY-BUILT APPLIANCE. WARNING: THIS FIREPLACE IS APPROVED FOR USE AS A WOOD BURNING FIREPLACE. IT HAS NOT BEEN TESTED OR APPROVED FOR UNVENTED GAS LOGS. WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE INJURY, PROPERTY DAMAGE OR LOSS OF LIFE.
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ITEM DESCRIPTION Optional Outside Ø4” MFPST-43-1 HEARTH (Left or Right) Combustion Air Kit MFPST-43-3 SIDE WALL Model No.: MFP4-AK SIDE WALL W/4” KNOCKOUT MFPST-43-3A MFPST-43-6 LINTEL MFPST-43-7 DOME SIDE - LOWER MFPST-43-8 DOME SIDE - UPPER (Ø4” Ducting not included) DOME TOP FOR 16”...
Figure 5 - Combustible Floor 2" MIN** CLASS “A” CHIMNEY 57" I.D. 1/2" FRAMIN SEE FIG. 27 AND 28 2" MIN* * 2 INCH CLEARANCE TO COMBUSTIBLES BOTH SEE FIG. 26 SIDES OF FIREPLACE ** If using a raised hearth or metal base plate, note that a combustible wood header must be no closer than 2”...
Safety Information The Mason-Lite is Designed for Use Only with: WARNING: THIS FIREPLACE HAS NOT BEEN TESTED FOR USE WITH AN UNVENTED GAS LOG SET. TO - Solid Wood Logs REDUCE THE RISK OF FIRE OR INJURY, DO NOT INSTALL AN UNVENTED GAS LOG SET INTO FIRE- PLACE.
Familiarity of installation for all components. • The strength of the floor on which it rests. Testing and listing for the Mason-Lite Fireplace has been un- • Chimney system measurements. dertaken by PFS Inc. (Report No. 08-154) to UL 127.
Drywall Wood flooring Plywood 1) The Mason-Lite is designed to be installed with a listed Sub-flooring Wood Framing Particle board UL-103-16” I.D. Class A, Metal Chimney System. Mill board...
WARNING to the licensed design professional and/or building contractor: It is your responsibility to be certain that the Figure 10 Mason-Lite can be properly supported by the combustible Metal Base floor system on which the fireplace will rest. Assembly...
L + 0.5D is permitted to be substituted for the deflection resulting from L + D. Note that MASON-LITE cannot accept responsibility for structural floor support details. All drawings are presented as mere illustrations to indicate the presence of the underlying floor system. It is the responsibility of the general contractor/installer to consult with a local licensed design professional for guidance in building a proper fl or support system.
The Mason-Lite Metal Base ensures the minimum 8” (eight precast parts. You will need a thin-set type mortar for bonding. The parts of the fireplace are made of Mason-Lite’s inch) clearance above combustible flooring is maintained. A layer of 1/2” minimum Concrete Board is required on incredibly strong blend of specialty cement and a light weight aggregate.
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4) Keep the assembly of the next sections of the firebox side walls moving up, keeping components moist, 1) Place the Mason-Lite Fireplace hearth base on top of your mixing mortar as you need it and threading the mortar non-combustible floor or metal base. For concrete slabs, appropriately as you stack each section, one onto the supporting floor needs to be rated at ASTM 90.
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MASON-LITE mortar. Stop to look at power, you should look over the firebox assembly at the the smoke dome side, front and rear walls to see that...
#8 x 3/4 smooth transition into the flue components. Setting the Screws smoke dome completes the MASON-LITE Firebox and Smoke Dome assembly. You are now ready to begin the installation of the necessary fi rebrick lining and the flue Firestop Radiation Shields also provide complete separation components.
Modular Firebrick Lining If using our Mason-Lite Firebrick Liners, simply use an extra bucket of the mortar we supply. Install Hearth Liner first, then continue with sides. Consider if brackets for grates will be required also if pre-drilling is required for gaslines, electrical or if the outside combustion air kit is to be installed.
6 sq. ft. (six square feet) or greater. You may elect to add a vented decorative gas appliance (gas log) to your Mason-Lite Fireplace. If so, follow the installation For Mantel clearances see Figure 9. instructions from the Decorative Gas Appliance manufacturer.
MASON-LITE Chimney Systems: Figure 33 The Mason-Lite Fireplace requires the following chimney Return Return systems: Elbow Elbow All chimney systems must be installed with an integrated Elbow damper/base plate installed on top of unit. Installers are Elbow cautioned to put the chimney system together exactly as Max.
3) After First and Second Lightings – When the fireplace has been properly cured with 1st and 2nd lightings, you will be able to add a full fuel load to the MASON-LITE which is about 10 to 15 pounds of firewood at any given time.
ANNUAL FIREPLACE MAINTENANCE SURFACE CRACKS The MASON-LITE FIREPLACES are manufactured Your fireplace and chimney require seasonal and using high quality materials. During the drying process, surface cracking may occur. These small cracks (under 1/16” will not monthly tune-ups”. Like any piece of well-built equipment, the...
Appendix I For installations regulated by the International Residential Code, the support foundation for the fireplace installed on concrete shall consist of a minimum of 6 inches thick reinforced concrete slab. The minimum specified compressive strength of f’ , shall be as required in Table R402.2 of the International Residential Code (IRC).
Appendix II FIGURE R301.2(3) WEATHERING PROBABILITY MAP FOR CONCRETE a. Alaska and Hawaii are classified as severe and negligible, respectively. b. Lines defining areas are approximate only. Local conditions may be more or less severe than indicated by region classification. A severe classification is where weather conditions result in significant snowfall combined with extended periods during which there is little or no natural thawing causing deicing salts to be used extensively.
Mason-Lite™ Fireplace Masonry Fireplaces Industries, LLC (MFI) warrants all MASON-LITE Fireplaces to be free from defects in materials that adversely affect fireplace performance for a period of ten (10) years from the date of purchase, subject to the terms and conditions of this limited warranty.