Legacy Stoves SF170, Installation And Operator'S Manual

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be in compliance with EPA requirements, which
dictate that the SF170/SF270 boilers are solid-fuel
boilers approved for burning coal. Outside of this
requirement, there is no safety related restriction on
how much wood may be placed in the boiler, other
than its physical capacity. Wood should be loaded
length wise, front to back. When opening the load
door, always open it just partially for ten seconds,
allowing the 9re to normalize with the sudden
addition of combustion air through the door
opening.
is will also serve to guard against
possible Eashover conditions and against burning
chunks falling out the load door.
When loading with coal, it is recommended that
coal not be piled higher than the 9rebrick on the
sides and back of the 9rebox. Coal may be loaded as
high as possible in the center of the 9rebox, subject
to the limitation that piling it too high will result in
it being higher than recommended on the sides. Coal
must never be loaded so deeply that there is a risk of
it tumbling out the load door.
Cleaning Requirements – Wood
Burning wood may result in creosote formation
in the chimney and connecting pipe, particularly
with long burning, low intensity 9res. Switching to
coal promptly will prevent creosote formation.
Creosote that forms during a wood 9re will dry and
become Eaky during a subsequent coal 9re. It can
then be easily cleaned from surfaces inside the
boiler, chimney and the Eue connecting pipe. If
wood is being used, check pipe daily to become
familiar with how quickly creosote forms with your
burning practices. Clean as required.
Cleaning Requirements – Coal
Burning coal will produce Ey ash that will be
pulled into the Eue connecting pipe and chimney.
Build up of Ey ash and soot can cause performance
to deteriorate, and in severe cases create a safety
issue due to reversing of dra; that occurs from a
blocked Eue connecting pipe or a blockage in the
chimney. Even a partial blockage is dangerous.
When burning bituminous coal, buildup in the
Eue connecting pipe and chimney may include soot
in addition to Ey ash. Soot presents a 9re hazard, as
it is o;en Eammable. Check Eue connecting pipe
and chimney daily at 9rst, then weekly therea;er to
keep ahead of a dangerous build up of soot. Clean as
o;en as needed to keep buildup to less than 1/32 of
an inch.
Note: In the event of a chimney fire, or runaway
fire, see earlier section dedicated to these topics.
Fuel Storage – Wood
Wood stored for the purpose of kindling should
be stored in a dry location. At the very minimum, if
stored outside it needs to be under a roof. Indoor
storage is preferred, since the amount of kindling
you will need throughout the season is likely to be
small. Drier kindling will burn ho=er, and ignite coal
more quickly. Kindling must be stored outside the
listed clearances and away from any ignition
sources.
Fuel Storage – Coal
Coal may be stored inside or outside. Keeping
coal dry will result in more reliable operation,
including less chance of losing the 9re when adding
coal. In addition, coal stored outside that may
become wet is likely to freeze solid. If this occurs,
bring chunks of frozen coal inside to thaw. Enough
can be brought into a warmer location to completely
thaw and dry before adding to the 9re. Keeping the
coal dry will make it much easier to work with.
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Note: Small, intense wood fires are preferred to
large smoldering ones, as they reduce creosote
formation in flue connecting pipe and the
chimney.
Note: Solid-Fuel-Burning appliances need to be
cleaned frequently to guard against buildup of
soot, creosote and ash. Clean flue connecting
pipe at least monthly. Clean the chimney at least
twice per year. Clean more often if conditions
require it. Slow burning wood fires increase the
needed frequency.