Osburn OB02401 - Manual (Page 25)

25
10. Never operate the insert with the door open, or cracked slightly open, except briefly during
the lighting operation, and during refuelling. Leaving the door open continuously could
seriously overheat the chimney and adjacent combustibles. Do not operate the insert if
there is an abnormal air leakage into the unit, such as through deteriorated gaskets or
cracked or broken glass. Do not operate the insert without a door gasket. Leakage can
result in overheating, or in very airtight homes, could possibly cause smoke spillage into the
room. Smoke may contain carbon monoxide, which is poisonous, and in sufficient quantities
is a health hazard.
11. We recommend that you have a fresh air or make up air supply for the insert. In Canada
this is a building code requirement. If this is not done, it could cause poor air quality in the
home, poor and incomplete combustion, and poor efficiency in the insert.
3.2 Fuel
1. Fuel for the insert must not be stored closer than the required clearances to combustibles
and not in the space required for ash removal.
2. Your Osburn insert is designed to burn
C ORDWOOD F UEL O NLY
. Do not burn coal, charcoal, or
trash in the unit. Highly flammable items such as trash may ignite creosote in the chimney,
resulting in a chimney fire. Never burn salt wood, beachwood, chemically treated wood, or
wood removed from salt water, since the deposits left will deteriorate the firebox. Damage
caused by chemicals or salt is not covered under warranty.
3. Seasoned dense wood is recommended. Wood should be air dried in a covered ventilated
area for six months to a year or more. This reduces the moisture content of the wood,
resulting in better insert performance. Wood species with moisture content of 20% or less
are ideal. Dry seasoned wood can be distinguished from green wood by the checks or
cracks in the ends.
4. Wet or green wood will tend to cause the fire to smoulder, producing large amounts of
creosote. Creosote build-up could result in a chimney fire. This wood will also prove difficult
to keep burning properly, and fires will tend to go out. Green wood produces very little heat,
and sometimes causes customers to think that the insert does not work. If you must burn
wet wood, use only small amounts mixed with dry wood.
5. Decayed wood or low-density wood has very little energy content or heating value, and will
not burn satisfactorily for long periods of time.
An example of the energy values of some common wood fuels is given in the following table. For
recommended wood sizes, refer to the specifications.