Installation, Air for combustion and ventilation, Continued – Desa SL30NT User Manual

Page 6

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104463-01E

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6

WARNING: Never install the heater

• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture, clothing, or other flam-

mable objects are less than 42 inches from the
front, top, or sides of the heater

• in high traffic areas
• in windy or drafty areas

INSTALLATION

WARNING: A qualified service person must in-

stall heater. Follow all local codes.

NOTICE: State or local codes may only allow opera-
tion of this appliance in a vented configuration. Check
your state or local codes.

NOTICE: This heater is intended for use as supple-
mental heat. 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.

AIR FOR COMBUSTION AND
VENTILATION

Continued

Figure 3 - Ventilation Air from Outdoors

Figure 2 - Ventilation Air from Inside Building

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining unconfined space.
When ventilating 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 and 2, Figure 2). You can also remove door into
adjoining room (see option 3, Figure 2). Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion
and Ventilation
for required size of ventilation grills or ducts.

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills or ducts. You must
provide two permanent openings: one within 12" of the ceiling and
one within 12" of the floor. Connect these items directly to the
outdoors or spaces open to the outdoors. These spaces include attics
and crawl spaces. Follow the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, 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 air

into attic if attic has a thermostat-controlled power vent. Heated
air entering the attic will activate the power vent.

Outlet
Air

Ventilated
Attic

Outlet
Air

Inlet
Air

Inlet Air

Ventilated

Crawl Space

To

Crawl

Space

To Attic

Or

Remove

Door into
Adjoining

Room,
Option

3

Ventilation Grills

Into Adjoining Room,

Option 2

Ventilation

Grills

Into Adjoining

Room,

Option 1

12"

12"

AIR FOR COMBUSTION AND VENTILATION

Ventilation Air

INSTALLATION

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