Installation - Mr. Heater Plaque MHVFR10LP Installation Instructions And Owner's Manual

VENTILATION AIR
Ventilation from Inside Building
This fresh air would come from an adjoining unconfined
space. When ventilation to an adjoining unconfined
space, you must provide two permanent openings: one
within 12" of the ceiling and one within 12" of the floor
on the wall connecting the two spaces (see options 1
& 2 of figure 2). You can also remove door into adjoin-
ing room (see option3, fig 2). Follow the National Fuel
Gas Code NFPA 54/ ANSI Z223.1, the International
Fuel Gas Codes or applicable local codes, Air for
Combustion and Ventilation for required size of ventila-
tion grills or ducts.
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 beneficial, 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 3
through 5.

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.
Unvented Liquid Propane Fired Room Heater
Or remove
Ventilation
door into
Gills into
Adjoining
Adjoining
Room -
Room - Op-
Option 3
tion 1
OUTLET AIR
OUTLET
AIR
INLET
AIR
5
Installation Instructions and Owner's Manual
12"
Ventilation Gills into Ad-
joining Room - Option 2
12"
Figure 2
VENTILATION AIR
VENTILATED
ATTIC
TO ATTIC
TO CRAWL
SPACE
VENTILATION CRAWL SPACE
Figure 3.