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120193-01A
5
29..The.heater.must.be.installed.so.that.the.
location.of.the.heater.does.not.obstruct.or.
interfere.with.normal.or.emergency.exits.
and.doors.or.walkways.in.the.structure.
venTiLaTion
WARNING: Follow the mini-
mum fresh, outside air ventila-
tion requirements. If proper
fresh, outside air ventilation is
not provided, carbon monoxide
poisoning can occur. Provide
proper fresh, outside air ventila-
tion before running heater.
Provide.a.fresh.air.opening.of.at.least.42.in
2.
(271.cm
2
).opening.of.fresh,.outside.air.
Example:
.3".high.x.14".long.=.42.in
2
..Provide.
extra.fresh.air.if.more.heaters.are.being.used.
Determining Correct Heater Size
1.. Determine.volume.of.space.to.heat:.
Length.x.Width.x.Height
.
50.feet.x.30.feet.x.15.feet.=.22,500.ft
3
2.. Determine.desired.temperature.rise:
.
Desired.temperature.65°.-.25°.outside.
temperature.=.40°.rise
3.. Multiply.volume.x.rise:.22,500.x.40.=.900,000
4..
To determine how many BTU’s are needed
multiply.by.0.133
900,000 x 0.133 = 119,000 Btu
The.heater.thermostat.will.cycle.on.and.off.to.
maintain.the.desired.room.temperature.more.
often if the BTU/hr is oversized for the space
being heated. The air infiltration and leakage
of. heated. air. through. cracks,. passageway.
openings, etc., will adjust the required BTU’s
needed.for.the.desired.temperature.
Ventilation Air Requirements - National
Fuel Gas Code ANSI Z223.1/NFPA 54
1.inch
2
of opening per 3,000 BTU with
outside.air
1.inch
2
of opening per 1,000 BTU with non-
outside.air
Determine.fresh.air.needed
Input.Max..divided.by.3,000
125,000 BTU/hr ÷ 3,000 = 41.66
Provide.42.inch
2
.of.opening.to.fresh,.outside.air
3".high.x.14".long.-.42.inches
2
11..Minimum. heater. clearances. from. com-
bustible.materials:.Outlet:.8.ft..(2.40.m),.
Sides:.1.ft..(30.cm),.Top:.3.ft..(0.91.m),.
Rear:.1.ft..(30.cm)
12. Keep heater at least 6 ft. (1.83 m) from
propane/LP.tank(s)..Do.not.point.heater.
at.propane/LP.tank(s).within.20.ft..(6.m)..
In.Canada.keep.heater.at.least.10.ft..(3.
m).from.propane/LP.tank(s).
13. Keep propane/LP tank(s) below 100° F
(38˚ C).
14..The.minimum.surrounding.air.temperature.
rating.for.this.heater.is.-20º.F.(-29º.C).
15..Check. heater. for. damage. before. each.
use..Do.not.use.a.damaged.heater.
16..Check. hose. before. each. use. of. heater..
If. highly. worn. or. cut,. replace. with. hose.
specified by manufacturer before using
heater.
17..Locate.heater.on.stable.and.level.surface.
if.heater.is.hot.or.operating.
18..Never. block. air. inlet. (rear). or. air. outlet.
(front).of.heater.
19. Keep heater away from strong drafts, wind,
water.spray,.rain,.or.dripping.water.
20. Keep children and animals away from
heater.
21..Never. move,. handle,. or. service. a. hot.
or. operating. heater.. Severe. burns. may.
result.. You. must. wait. 15. minutes. after.
turning.heater.off.
22..To.prevent.injury,.wear.gloves.when.han-
dling.heater.
23..Never.attach.duct.work.to.heater.
24..Space. heaters. used. in. the. vicinity. of.
tarpaulins,. canvas. or. similar. enclosure.
materials.shall.be.located.a.safe.distance.
from. such. materials.. These. enclosure.
materials shall be of a fire retardant na
-
ture..These.enclosure.materials.shall.be.
securely.fastened.to.prevent.them.from.
igniting.or.from.upsetting.the.space.heater.
due.to.wind.action.
25. Do not alter heater. Keep heater in its
original.state.
26..Do.not.use.heater.if.altered.
27..Turn.off.propane/LP.supply.to.heater.and.
unplug.when.not.in.use.
28..Use.only.original.replacement.parts..This.
heater must use design-specific parts.
Do. not. substitute. or. use. generic. parts..
Improper.replacement.parts.could.cause.
serious.or.fatal.injuries.
SaFeTy
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