Maintenance - Osburn Beyond Fire 1700 Installation And Operation Manual

The table below gives an approximate maximum burn cycle time, based on firebox volume.
FIREBOX VOLUME
<1.5 cubic feet
1.5 c.f. to 2.0 c.f
2.0 c.f. to 2.5 c.f.
2.5 c.f. to 3.0 c.f.
A longer burning time is not necessarily an indication of efficient operation. It is preferable to
build a smaller fire that will provide three or four hours of heating than to fully load the firebox
for a much longer burn. Shorter burn cycles make it easier to match the heat output of the stove
to heat demand for space.
5.7.5 Logs Orientation
In a relatively square firebox, the wood can be loaded north-south (ends of the logs visible) or
east-west (sides of the logs visible).
North-south loads allow more wood to be loaded at the same time. On the other hand, they
break into smaller pieces faster. North-south loading is good for high output, long lasting fires
for cold weather.
East-west loads allow a limited amount of wood since too many logs could cause them to fall
on the glass. East-west loads, placed in a compact way, take a long time before breaking down.
They are excellent for low-intensity, long-lasting fires in relatively mild weather.
5.7.6 Carbon Monoxide
When unburned logs remain in the firebox and the flame disappears, go outside and look at the
chimney exit. If there is visible smoke, it means that there is still combustible to burn but that
the fire lacks air to burn properly. In this situation, the CO rate will increase so it is important to
react. Open the door slightly and move the log with a poker. Turn it over and create a passage
for the air below, making a trench with the coal bed. Add small pieces of wood to restart the
combustion.

6. Maintenance

This heater will give many years of reliable service if used and maintained properly. Internal
components of the firebox such as firebricks or refractory panels, baffle and air tubes will wear
over time. Defective parts should always be replaced with original parts.
To avoid premature deterioration, follow the lighting and reloading procedures in section
Burning Wood Efficiently»
entire burn cycles.
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Table 1 : Approximate Maximum Burn Cycle Time
>3.0 c.f.
and also avoid letting the heater run with the air intake fully open for
MAXIMUM BURN CYCLE TIME
3 to 5 hours
5 to 6 hours
6 to 8 hours
8 to 9 hours
9 to 10 hours
Installation and Operation Manual - 1700
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