Empire Comfort Systems RH-65-6 Manuel D’Utilisation

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CLEARANCES
Clearances: When facing the front of the room heater the
minimum clearances to combustible construction (material)
are the following:
Left side 6 inches (152mm).        Right side 6 inches (152mm).
Recommend 18 inches ((457mm) on left side for servicing.
Do not install in alcove or closet.  No horizontal projection
above heater permitted within 55 inches (140cm).
Ceiling 55 inches (140cm).  Draft hood to rear wall 2 inches
(51mm).
Open in front to provide service, access, and clearance to
construction.
VENTING
 1. Flue pipe must be as large as the flue collar on the draft
diverter.
 2. Maintain an upward slope of at least 1/4 inch (6mm) per
foot of horizontal run.
 3. Run flue pipe as directly as possible with a minimum of
elbows.
 4. Flue pipe should extend through the wall of a chimney to
be flush with inner wall.
 5. Flue pipe must be adequately supported by metal strips.
  6. Single wall vent pipe may be attached directly to the draft
hood of the room heater when a clearance of 2 1/2 inches
(64mm) is maintained between the single wall vent pipe
and the combustible wall of the room in which the room
heater is located. Use double wall vent pipe for 1 inch
(25mm) clearance to combustibles.
 7. For flue pipe running through walls and roof, use B-1 [1
inch (25mm) clearance to combustibles] vent pipe.
 8. Chimneys should extend at least 2 feet (.6m) above the
roof and above any object or nearby building within 10
feet (3m).
 9. Open tees should not be used in the flue pipe.
10. Appliance must not be connected to a chimney flue that is
servicing a separate solid-fuel burning appliance.
For proper venting, do not attach a 90
°
 elbow directly to draft
diverter.  If possible,  attach 2 feet (.6m) of straight vent pipe
before an elbow is used. Use of 45
°
 elbows is recommended.
Uninsulated single-wall metal pipe shall not be used
outdoors in cold climates for venting gas utilization
equipment.
Ventilation and Combustion Air
Room heaters shall be installed in a location in which the
facilities for ventilation permit satisfactory combustion of gas
and proper venting under normal conditions. In buildings of
conventional frame, brick or stone construction without tight
storm windows and doors, infiltration is normally adequate to
provide for combustion and draft hood dilution.
Where appliances are installed in a confined space within a
building, the building being of unusually tight construction,
air for combustion and ventilation must be obtained directly
from outdoors or from such spaces that freely communicate
with the outdoors. Under these conditions, the confined space
shall be provided with two permanent openings, one near the
top of the enclosure and one near the bottom; each opening
shall have a free area of not less than one square inch (6.5cm
2
)
per 1,000 BTU's (.3KW) of total input. The draft hood must be
in the same atmospheric pressure zone as the combustion air
inlet to the appliance.
Liner and Insulated Liner
When you install a vented room heater into a masonry chimney
you must follow these steps.
1. The chimney must be lined and sized properly. Most masonry
chimneys are over sized and absorb too much heat to be
considered a proper vent. If you have any doubts line the
chimney with the right size liner. If it's unlined you must line
it.
2. Use an insulated liner when the chimney is on the outside,
three sides exposed to the weather, and there is no clay liner
in the chimney. The insulation will help keep the flue gases
warmer.
Insulated Vent Enclosure
Vented room heaters installed with the vent going directly to the
outside and above the eaves can cause poor venting. The cold pipe
will have a delay in proper venting and cause the room heater to
shut "off" by the vent safety switch. To prevent delayed venting as
well as condensation of flue products an insulated enclosure is
recommended.
Use type B 5" (127mm) diameter vent pipe and maintain at least
a one inch (25mm) clearance to combustibles.
Use metal thimble to protect vent pipe as it passes through
combustibles.
Figure 3
3' (.9m)
MORE THAN 10'
(3m)
10' (3m)
2' (.6m)
HEIGHT ABOVE ANY ROOF SURFACE
WITHIN 10' (3m) HORIZONTALLY