Product Features; Air For Combustion And Ventilation - Superior MNF24INE Installation And Operation Instructions Manual

OPERATION
This appliance is clean burning. It requires
no outside venting. There is no heat loss out
a vent or up a chimney. Heat is generated by
both realistic fl ames and glowing coals. This
appliance is designed for vent-free operation
with fl ue damper closed. It has been tested
and approved to the ANSI Z21.11.2 standard
for unvented appliances.

AIR FOR COMBUSTION AND VENTILATION

WARNING: This heater shall
not be installed in a room or space
unless the required volume of
indoor combustion air is provided
by the method described in the
National Fuel Gas Code, ANSI
Z223.1/NFPA 54, the International
Fuel Gas Code, or applicable local
codes. Read the following instruc-
tions to ensure proper fresh air
for this and other fuel-burning
appliances in your home.
Today's homes are built more energy effi cient
than ever. New materials, increased insulation
and new construction methods help reduce
heat loss in homes. Homeowners apply
weather strip and caulk around windows and
doors to keep the cold air out and the warm air
in. During heating months, homeowners want
their homes as airtight as possible.
While it is good to make your home energy
effi cient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning ap-
pliances need fresh air for proper combustion
and ventilation.
Exhaust fans, some fi replaces, clothes dryers
and some fuel-burning appliances draw air
from the house to operate. You must provide
adequate fresh air for these appliances. That
will ensure proper venting of vented fuel-burning
appliances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classifi cations:
6

PRODUCT FEATURES

SAFETY DEVICE
This appliance has a pilot with an Oxygen
Depletion Sensing (ODS) safety shutoff
system. The ODS/pilot is a required feature
for vent-free room appliances. The ODS/pilot
shuts off the appliance if there is not enough
fresh air.
ELECTRONIC IGNITION SYSTEM
This appliance has an electronic igniter to light
appliance fuel supply.
1. Unusually Tight Construction
2. Unconfi ned Space
3. Confi ned Space
The information on Pages 6-8 will help you
classify your space and provide adequate
ventilation.
Unusually Tight Construction
The air that leaks around doors and windows
may provide enough fresh air for combustion
and ventilation. However, in buildings of un-
usually tight construction, you must provide
additional fresh air.
Unusually tight construction is defi ned as
construction where:
a. walls and ceilings exposed to the out-
b. weather stripping has been added on
c. caulking or sealants are applied to
If your home meets all three criteria above,
you must provide additional fresh air. See
Ventilation Air From Outdoors, Page 8.
If your home does not meet all three criteria
above, proceed to Determining Fresh-Air Flow
For Heater Location, Page 7.
Confi ned and Unconfi ned Space
The National Fuel Gas Code, ANSI Z223.1/
NFPA54 allows two methods for determining
whether the space in which the heater is being
installed is confi ned or unconfi ned space. The
SuperiorFireplaces.us.com
side atmosphere have a continuous
water vapor retarder with a rating of
-11
one perm (6 x 10 kg per pa-sec-m
less with openings gasketed or sealed
and
openable windows and doors and
areas such as joints around window
and door frames, between sole plates
and fl oors, between wall-ceiling joints,
between wall panels, at penetrations
for plumbing, electrical and gas lines
and at other openings.
2
) or
900462-01A