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Instructions

Model MFPST43VF

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 2021

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.

Inc.

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.

Содержание Mason-Lite MFPST43VF

Страница 1: ...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 no...

Страница 2: ...to installing This appliance must be installed in accordance with local codes if any if not in accordance with the National Fuel Gas Code ANSI Z223 1 installation codes 01 26 2021 ANSI Z21 91 Ventless...

Страница 3: ...ge or personal injury Customer Service Parts Replacement Parts and accessories may be purchased from your local dealer Additional information is available from Masonry Fireplace Industries Inc Accesso...

Страница 4: ...ntended to serve as a primary heat source rather the fireplace was expressly created as a supplemental source of heat The MASON LITE is Designed to be used ONLY with approved Vent Free Decorative Gas...

Страница 5: ...r burner flame patterns Soot build up and improper burning will occur Soot build up can settle on household surfaces outside the fireplace 8 This fireplace needs fresh air ventilation to run properly...

Страница 6: ...and Installation Figure 3 W H D Figure 4 Height may vary Maintain 1 2 inch clearance to top of lintel see Fig 12 Model W H D MFPST43VF 53 40 nominal 28 Supporting Floor Systems Floor Framing It is imp...

Страница 7: ...the general arrangement of anchorage to floor framing I Joist Simpson Strong Tie A 35 or equivalent Figure 6 I Joist Anchoring Top View Example Only I JO IST S Anchor Brackets Figure 7 I Joist Anchori...

Страница 8: ...or support system Clearances Clearances The Importance of Clearances Warning to the structural engineer and or building contractor It is your responsibility to be certain that the Mason Lite can be pr...

Страница 9: ...s from the firebox opening shall be kept at least twelve inches 12 from the top of the opening 12 NON COMBUSTIBLE ONLY ZONE 20 MIN 1 1 2 10 SAFE ZONE FOR PROJECTION OF COMBUSTIBLE MATERIAL TOP OF FIRE...

Страница 10: ...defined as the passage of 1 grain of vapor through 1 square foot of 1 inch thick material in 1 hour under a pressure difference of 1 inch of mercury If your home meets all the three criteria above yo...

Страница 11: ...e installation of a refractory fire brick liner This should be a minimum of 1 1 8 thick The liner will be applied within the walls of the firebox Modular firebrick panels are also available from MFI A...

Страница 12: ...ireplace that will not be plumb or level What you are advised to do is make use of shims You will find these supplied with the MASON LITE and you can nudge them in between openings to achieve the prec...

Страница 13: ...ned to use Mason Lite mortar sparingly because it does have such holding power you should look over the firebox assembly at the end and fill any gaps with mortar especially at joint connections Adjust...

Страница 14: ...quirements for installation as outlined by the National Fuel 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 heat...

Страница 15: ...the outside combustion air kit is to be installed The following Firebrick Patterns are available from MFI MFPST43 SHBL Herringbone Figure 28 MFPST43 FRBL Running Bond Figure 29 Initial Fireplace Opera...

Страница 16: ...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...

Страница 17: ...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...

Страница 18: ...iate 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 therein arising out of the use misuse o...

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