background image

Instructions

Models MFP39/44/49VF

Do not store or use gasoline or other 

flammable vapors and liquids in the 

vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS:

• 

Do not try to light any appliance.

• 

Do not touch any electrical switch; do 

not use any phone in your building.

• 

Immediately call your gas supplier from 

a neighbor’s phone and follow the gas 

supplier’s instructions.

• 

If you cannot reach your gas supplier, 

call the fire department.

Installation and service must be 

performed by a qualified installer, service 

agency, or the gas supplier.

WARNING:

If the information in these instructions is 

not followed exactly, a fire or explosion 

may  result  causing  property  damage, 

personal injury or death.

REV JAN 2019

Vent Free Universal Masonry Firebox

This  firebox  has  been  tested  and  approved  by  PFS 

under  ANSI  Z21.91  for  use  with  any  ANSI  Z21.11.2 

approved gas logs.

IMPORTANT:

 READ THESE INSTRUCTIONS

CAREFULLY BEFORE STARTING

INSTALLATION OF THIS FIREPLACE. 

Do not store gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

This appliance is only for use with the type 

of gas indicated on the rating plate. This 

appliance is not convertible for use with 

other gases, unless a certified kit is used.

Report No. 08-154

FOR USE ONLY WITH A LISTED GAS-FIRED UNVENTED 

DECORATIVE ROOM HEATER NOT TO EXCEED 40,000 

BTU/H.
DO NOT BUILD A WOOD FIRE.

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.

INSTALLER

:

 Leave this manual with the appliance.

CONSUMER:

 Retain this manual for future reference.

Summary of Contents for MASON-LITE MFP39VF

Page 1: ...rebox has been tested and approved by PFS under ANSI Z21 91 for use with any ANSI Z21 11 2 approved gas logs IMPORTANT READ THESE INSTRUCTIONS CAREFULLY BEFORE STARTING INSTALLATION OF THIS FIREPLACE...

Page 2: ...tallation Information Pg 12 Fireplace Assembly Procedures Pg 13 15 Gas Piping Installation Pg 15 Electrical Line Feed Pg 15 Firebrick Liner Installation Pg 16 Initial Fireplace Operation Pg 16 Appendi...

Page 3: ...d with this appliance may result in property damage or personal injury Customer Service Parts Replacement Parts and accessories may be purchased from your local dealer Additional information is availa...

Page 4: ...WALL 8 5 MFP39 5 MFP44 5 MFP49 5 DOME REAR LOWER 1 6 MFP39 6 MFP44 6 MFP49 6 LINTEL 1 6A MFP39 6A MFP44 6A MFP49 6A LINTEL FRONT 1 6B MFP39 6B MFP44 6B MFP49 6B T BAR 1 7 MFP39 7 MFP44 7 MFP49 7 DOME...

Page 5: ...he fireplace was expressly created as a supplemental source of heat The MASON LITE is Designed for Use Only with any Vent free decorative gas log sets meeting standard ANSI Z21 11 2 Vent free decorati...

Page 6: ...pilot light safety system The ODS shuts down the fireplace if not enough fresh air is available See Air for Combustion and Ventilation page 10 If the fireplace keeps shutting off see appliance manufac...

Page 7: ...Attention You may need a building permit to install a MASON LITE fireplace Check with the local jurisdiction before you get started W H D Figure 4 Height may vary Maintain 1 2 inch clearance to top of...

Page 8: ...strated in Figures 6 and 7 Figure 10 illustrates the general arrangement of anchorage to floor framing It is important to take into consideration that the load for the Mason Lite Fireplace must be con...

Page 9: ...structural members having a moisture content of less than 16 per cent at time of installation and used under dry conditions the deflection resulting from L 0 5D is permitted to be substituted for the...

Page 10: ...tion However all such trim material must meet standard fireplace code requirements Non combustible facing material must be applied to a minimum of eight inches 8 beyond the sides of the finished openi...

Page 11: ...of vented fuel burning appliances Non combustible Flex Hose Figure 16 Exterior Providing Adequate Ventilation In accordance with the National Fuel Gas Code NFPA 54 ANSI Z223 1 Section 5 3 Air for Com...

Page 12: ...r Gas fireplace logs ________ Btu hr Other gas appliances ________ Btu hr Total ________ Btu hr Example Gas water heater 40 000 Btu hr Vent free fireplace 36 000 Btu hr Total 76 000 Btu hr Do not incl...

Page 13: ...will have grout applied prior to assembly This will minimize shrinkage and cracks developing in the joint areas Best way to accomplish this is with a bucket of water and a large sponge Dip sponge int...

Page 14: ...rface flatness level if necessary 4 Apply mortar to the remaining Hearth except this time apply beading on surface to be facing floor as shown in Figure 19 Figure 19 Hearth shown prepared for Left Sid...

Page 15: ...nstall Lintel 10 Install Lower Rear Dome flush to the rear walls as shown in Figure 23 Figure 23 Lintel Lower Rear Dome T Bar Lintel Front 11 Place Lower Side Domes between Lintel and Lower Rear Dome...

Page 16: ...Gas Code ANSI Z223 1 This gas pipe provision must only be connected to an approved vent free gas log heater certified to ANSI Z21 11 2 heater standard Check local building codes for specific pipe and...

Page 17: ...the outside combustion air kit is to be installed The following Firebrick Patterns are available from MFI MFP XX SHBL Herring Bone Figure 30 MFP XX FRBL Running Bond Figure 31 Initial Fireplace Operat...

Page 18: ...ncrete slab The concrete strength and durability shall comply with Sections 1903 1904 and 1905 of the International Building Code IBC TABLE R402 2 MINIMUM SPECIFIED COMPRESSIVE STRENGTH OF CONCRETE MI...

Page 19: ...ly 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 signifi...

Page 20: ...his warranty makes MFI or any affiliate thereof liable in any respect for any injury or damage to the building or structure in which the fireplace has been installed or to the persons or property ther...

Reviews: