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The table below provides a very general indication of the maximum burn cycle times you are likely to
experience, based on firebox volume.
Long burn times are not necessarily an indication of efficient zero clearance wood inbuilt operation. When
you are home during the day and able to tend the fire, it is preferable to build a smaller fire that might
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 zero clearance wood inbuilt to the heat demand of
the space.
4.3.6.5 How to place the logs
In fireboxes that are roughly square, wood can be loaded so that looking through the glass door you see the
ends of the logs (north-south) or the sides of the logs (east-west).
East-west loads that are built compactly break down slowly when heated, but the amount of wood you can
load is limited because if you put in too many pieces, one may fall against the glass. East-west loads are
excellent for long, low output fires for relatively mild weather.
North-south loads break down more quickly, but much more wood can be loaded at a time. This makes
north-south loading good for high output, long lasting fires for cold weather.
18
FIREBOX VOLUME
< 0.042 cubic meter
3
0.042 m
to 0.056 m
3
0.056 m
to 0.071 m
3
0.071 m
to 0.085 m
3
> 0.085 m
OPERATING & INSTALLATION INSTRUCTIONS FOR STRATFORD CF ZERO CLEARANCE WOOD HEATER
MAXIMUM BURN TIME
3 to 5 hours
3
5 to 6 hours
3
6 to 8 hours
3
8 to 9 hours
9 to 10 hours
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