Bodart & Gonay Optifire OPTI700, Instructions For Use And Maintenance Manual

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8 Opti-
1.3.3. Reduced rate and long-lasting combustion
Maximum permitted load in one go at reduced rate (see previous table).
1. Keep a 3 to 5 cm bed of embers at the bottom of the fi replace.
2. Choose logs with a very wide section.
3. Position the thermostat according to the draught of your chimney. A redu-
ced rate is generally achieved between 0 and 3.
This kind of load can only be used at
reduced rate , to produce a long-lasting
fi re.
Piling logs in parallel encourages a long-lasting fi re. Add more logs when there are only embers left, just
after the last fl ames die out.
Continuous use at reduced rate may, through condensation, cause an accumulation of soot in
the chimney, and thereby a risk of chimney fi re, and dirty the glass more quickly.
Avoid reduced rate during unfavourable atmospheric conditions (low pressure and high humi-
dity), as there is a risk of backdraft.
1. Position the GRILL in OPEN position.
2. OPEN the air control to maximum: THERMOSTAT 9.
3. Lay crumpled (non-glazed) paper and KINDLING in the fi replace.
4. SET LIGHT TO IT.
5. Leave the door slightly AJAR to prevent the glass sooting up, as its still too low temperature causes
condensation and deposit of particles.
6. As soon as the GLASS is suffi ciently HOT, CLOSE THE DOOR.
7. START the FAN in MEDIUM POSITION (see 1.6).
8. Put the coal WITHOUT SPREADING IT OUT on the grill.
9. When the fi re has penetrated the mass (appearance of fl ames), add a SECOND LOAD.
10. Allow the fi re to continue to progress before reducing GRADUALLY the air intake up to the position
corresponding to the calorifi c requirement.
11. ADJUSTING FAN SPEED.
Use coal only in an casual way.
Use coal (anthracite or lean coal) of 12/22 or 20/30 grade.
Fuels containing sulphur, like coke and its by-products for example, are
prohibited.
1.4. O
PERATING WITH COAL
NB. Do not use the appliance with coal in mild weather. As the draught and rate are reduced, combus-
tion is liable to become incomplete.