Installation - Mr. Heater MHVFG30TB LP Operating Instructions And Owner's Manual

WARNING: Rework worksheet, adding the space
of the adjoining unconfi 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 ventila-
tion 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 Com-
bustion 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 benefi 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

NOTICE: This heater is intended for the use as supple-
mental heat. Use this heater along with your primary
heating system. Do not install this heater as your pri-
mary 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 qualifi 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
Unvented LP-Gas Vent Free Heaters
*A CSA/AGA certifi ed equipment shutoff valve with
1/8" NPT tap is an acceptable alternative to test gauge
connection. Purchase a CSA/AGA certifi ed equipment
shutoff valve from your dealer.
LOCATING HEATER
This heater is designed to be mounted on the wall.
For convenience and effi 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 fl 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 fl uids,
oil or kerosene lamps, etc.) are present in the air may
discolor walls.
WARNING: Never install the heater:
• In a bedroom (MHVFG30LP)
• In a recreational vehicle ·.
•
Where curtains, furniture, clothing, or other
fl ammable objects are less than 36 inches from
the front, top, or sides of the heater.
• As a fi replace insert
• In high-traffi 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 fl oor,
ceiling, and joining walls.
6
Installation Instructions and Owner's Manual