6
3.2.4 Accelerated Combustion
The maximum heat output for the
BIS ULTRA is achieved by burning
with the combustion air damper opened.
By this method, the BIS ULTRA can
produce up to 60,000 BTU of heat per
hour.
However, it will be necessary to reload with wood every one or two hours. This is the
least efficient method of burning the BIS ULTRA.
Use caution when firing with the combustion air control wide open. Only burn cordwood
in this manner. Small dry pieces of softwood and construction scraps will burn very
intensely using this method and may damage the firebox.
3.2.5 Medium Combustion
This is the recommended mode of
operating the BIS ULTRA and should
be the one normally used since it will
deposit the least amount of creosote on
the glass and in the chimney. The
combustion air damper must be _
closed.
The precise setting will depend on many factors, including chimney length and the
moisture content of the wood. For instance, a long chimney will necessitate closing the
damper more. To obtain the proper combustion, close the damper completely, and then
open it about _" to _". Three medium size pieces of wood should be burning on a bed of
hot coals. The heat output will be approximately 30,000 BTU per hour and the loading
time will be about every 3-4 hours. Softwoods may be burned using this method but the
time will be substantially reduced.
3.2.6 Slow Combustion
When the air combustion damper is
closed, the fireplace is in a slow
combustion phase. Slow combustion
will not stop the fire, but there will be a
noticeable change in the flame pattern.
The flames will be slow and may appear
dirty if the wood is too wet (moisture
content of 20% and more).
Always set the damper so that flames are visible, that way you maintain a good clean
combustion process. This method of burning should be used only after operating the BIS
ULTRA with the air control opened to produce a hot fire for about an hour. Slow
combustion can be used at night in order to reduce the heat output and prolong the burn.
The loading time will be between 6-10 hours.
Summary of Contents for EPA BIS ULTRA
Page 2: ...Printed in Canada Rev 9 April 2007 PIBISULTRAEPA ...
Page 7: ...2 2 CERTIFICATION LABEL ...
Page 10: ...5 ...
Page 20: ...15 Figure 7 Figure 9 Figure 8 Figure 10 ...
Page 30: ...25 Figure 28 NOTE THE OUTSIDE AIR KIT IS MANDATORY FOR BOTH FIREPLACE AND CHIMNEY ...
Page 35: ...30 Figure 31 Figure 32 ...
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