charge in su<cient quantity to last for up to ten
hours. Longer cycles are possible, but you will want
to plan for utilizing shorter burn cycles periodically
to provide for good rebox management. Best
practices include keeping ash and charcoal build-up
to a minimum. When demand is moderate to low,
simply load charges of fuel that are just adequate for
the length of the anticipated burn cycle.
When operating the boiler there is an actuated
damper and a manually operated damper located at
the rear of the unit (see gure below).
e actuated
damper is driven by a damper motor on le9, which is
in turn controlled by the aquastat se7ings on the
unit. For normal operation, both dampers are open
completely. In some cases, when the wood fuel is
rather dry, the manual damper can be closed
proportionally to slow the burn rate of dry wood and
this will allow for a longer burn time. Be sure to read
the section on dry fuel, and about the EPA Side
Tunnel Plug, a li7le further in the manual.
Automatic and Manual Dampers
Charging the Boiler with Wood: Manual
Feed
When it is time to reload the Wood Gun
TM
, note
the indicator light above the purge cycle timer. If the
indicator light is o:, push the green Purge bu7on or
turn the purge timer clockwise to number 5 and wait
two minutes before opening the door. Open it slowly
by cracking it open just a bit to allow air to Gow in
smaller quantities through the opening. A9er 5-10
seconds, you may open the door fully.
is waiting
period will allow su<cient time for the re to
become re-activated and burn o: any gases that may
have accumulated in the fuel chamber during the o:
cycle. Even if the green light is on,
open the door
cautiously,
since abruptly introducing air over the
glowing fuel particles may cause it to temporarily
Game up.
When reloading the Wood Gun™, it is a good idea
to use the ash rake to make sure that all of the center
slots are open and free from ash and charcoal before
adding more wood. Such raking is required more
o9en when using so9wood, or any wood with a high
ash content. Wood bark has a very high ash content
relative to the centers of wood pieces. When using
hardwood, clear the slots at least daily. Clear the
slots by raking charcoal pieces away from the slots.
A9er raking the charcoal pieces away from the slots,
rake ash into the slots, thus aiding the process of
allowing the induction fan to pull the ash through. A
vacuum that is rated for ash removal can also be
used for removing ash that does not contain live
embers.
Best results with fuel loading will be obtained if
the charge of wood is limited to the amount needed
to produce a 10-hour burn under anticipated heat
load conditions. Adding more wood than can be
utilized in 10 hours will likely lead to charcoal
buildup and potential issues with “back pu<ng”.
e
reason for this is that moisture is being evaporated
from the fuel during the o: cycle by heat radiating
from the refractory. During the course of several
hours of intermi7ent burning the entire fuel charge
- 22 -
Note: Spent ash should not be allowed to build up
on or in the refractory. Any ash buildup will
insulate the fuel charge from the heat generated
in the refractory, slowing the rate of gasification,
and thereby reducing heat output.
Observe the warning label on the
load door which cautions that it
must not be opened unless the
green indicator light is on.
Summary of Contents for wood gun E100 SF
Page 2: ......
Page 24: ...Photo Smoke flap installed 19 ...
Page 46: ...Steel Center Brick 8 Inch 41 ...
Page 49: ...Appendix A Boiler Specification Diagram 44 ...
Page 50: ... 45 ...
Page 51: ... 46 ...
Page 53: ...Appendix B Wiring Diagrams 48 ...
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Page 60: ... 55 ...
Page 61: ...Appendix C Exploded Parts Drawings 56 ...
Page 63: ... 58 ...
Page 68: ...Appendix F Boiler Piping and Ducting Examples 63 ...