RAIS Bionic Fire User Manual download pdf (Page 40)

English RAIS - manual for

IMPORTANT! - during kindling/refuelling

If an ash pan is used, it must be placed at the bottom

of the lower combustion chamber.

Stove functioning

The stove has 2 combustion chambers:

• the upper combustion chamber (UCC) is for kindling/refuelling

• the lower combustion chamber (LCC) is for post-combustion and may not be used

for kindling and refuelling

A post-combustion provides a good usage of the

fuel energi and an almost complete combustion

of the toxic and harmful substances from

the smoke.

Upon lighting the air ﬂows through the UCC and to the ﬂue

pipe (chimney). When the stove reaches a certain temperature,

the air ﬂow is diverted, and the still unburned gasses is lead

from the UCC through an opening in the bottom stone plate

to the LCC. Over the opening is placed a steel dome.

Flames are thus lead through the opening to the LCC for

post-combustion of the gases.

Automatic regulation of combustion air

This stove is equipped with an independent and self-regulating air damper.

Hence there is no damper handle.

The primary air is added to the primary combustion zone, i.e. the bed of glowing embers.

This cold air is only used in the lighting stage.

Secondary air is air added in the gas combustion zone, i.e. air which contributes to the

combustion of the pyrolysis gasses (preheated air, which is used for the cleaner glass

system and combustion). This air is sucked through the damper and is pre-heated through

the side channels and then emitted as hot scavenging air onto the glass. The hot air rinses

the glass and keeps it soot-free.

A clean combustion is indicated by clear yellow ﬂames.

The pilot nozzles are placed in the back plate of the upper combustion chamber. They

ensure that the bed of glowing embers is fed with air and therefore holds a high tempera-

ture. It provides a quick start when refuelling and reduces the risk of ﬁre going out.

Lower combustion

chamber (LCC)

Upper combustion

chamber (UCC)

Dome

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RAIS Bionic Fire User Manual Page 40