OPERATING INSTRUCTIONS AND OWNER’S MANUAL - Page 6

For F299830. Also, The document are for others Mr. Heater models: MHVFRD20LPBT, MHVFRD20LPT, MHVFRD30LPBT, MHVFRD30LPT, MHVFBF20LPBT, MHVFBF20LPT, MHVFBF30LPBT, MHVFBF30LPT

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6
Installation Instructions and Owners Manual
Unvented LP-Gas Vent Free Room Heaters
*A CSA/AGA certi ed equipment shutoff valve with
1/8” NPT tap is an acceptable alternative to test gauge
connection. Purchase a CSA/AGA certi ed equipment
shutoff valve from your dealer.
LOCATING HEATER
This heater is designed to be mounted on the wall. The
heater can also be located on a non-combustible oor,
away from a wall by using the oor mounting stands
included with the heater. If installed on combustible
ooring such as carpeting, tile or other combustible
material other than wood ooring, the heater must be
placed on a wood panel the full width and depth of the
appliance.
For convenience and ef ciency, install the heater:
Where there is easy access for operation,
inspection, and service
In the coldest part of the room.
If planning to use fan, locate heater near an
electrical outlet.
CAUTION: If you install the heater in a home garage:
Heater pilot and burner must be at least 18 inches
above oor . Locate heater where moving vehicle will
not hit it.
CAUTION: This heater creates warm air currents.
These currents move heat to wall surfaces next to
heater. Installing heater next to vinyl or cloth wall
covering or operating heater where impurities (such
as tobacco smoke, aromatic candles, cleaning uids,
oil or kerosene lamps, etc.) are present in the air may
discolor walls.
WARNING: Never install the heater:
In a bedroom (RD20LPT, RD30LPT, BF20LPT
or BF30LPT)
In a recreational vehicle ·.
Where curtains, furniture, clothing, or other
ammable objects are less than 36 inches from
the front, top, or sides of the heater.
• As a replace insert
• In high-traf c areas
In windy or drafty areas
WARNING: Heater must be mounted to maintain
the minimum clearances shown in Figure 4. If
possible, provide greater clearances from the oor,
ceiling, and joining walls.
WARNING: Rework worksheet, adding the space
of the adjoining uncon ned space. The combined
space must have enough fresh air to supply all ap-
pliance in both spaces.
Ventilation from Outdoors
If necessary provide extra fresh air by using ventilation
grills or ducts. Connect these items directly to the
outdoors or spaces open to the outdoors. These
include attics* and crawl spaces. Follow the National
Fuel Gas Code NFPA 54/ ANSI Z223.1, Section 5.3,
Air for Combustion and Ventilation for required size of
ventilation grills or ducts.
*IMPORTANT: Do not provide openings for inlet or
outlet into attic. If attic has a thermostat-controlled
power vent, heated air entering the attic will activate
the power vent.
IMPORTANT: Vent-free heaters add moisture to
the air. Although this is bene cial, installing heater
in rooms without enough ventilation air may cause
mildew to form from too much moisture. See Fresh Air
for Combustion and Ventilation, pages 5 through 6.
INSTALLATION
WARNING: Any change to this heater or its
controls can be dangerous.
NOTICE: This appliance is intended for supplemental
heating. Use this heater along with your primary heating
system. Do not install this heater as your primary heat
source. If you have a central heating system, you may
run system’s circulating blower while using heater. This
will help circulate the heat throughout the house. In the
event of a power outage, you can use this heater as
your primary heat source for the duration of the outage.
WARNING: A quali ed service person must install
heater. Follow all local codes.
CHECK GAS TYPE
Use only LP-gas. If your gas supply is not LP-gas, do
not install heater. Call dealer where you bought heater
for proper type heater.
THIS INSTALLATION REQUIRES:
Before installing heater, make sure you have the items
listed below:
Piping (check local codes)
Sealant (resistant to LP_Gas)
Equipment shutoff valve*
Ground joint union
Test gauge connection*
Sediment trap
Tee joint
Pipe wrench
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