PELLET STOVES
Chapter 4
red
INSTALLATION AND USE MANUAL
page
29
Operation
Technical service - Rights reserved - Reproduction prohibited
4.11.
VIEWING THE FLAME
In order to obtain good operation from the stove, you need to know
how to "read" the flame. The characteristics that the user needs to pay
attention to are the basically:
The shape
The colour
The character
4.11.1.
The shape
In normal combustion,
the flame should be tapered and lively, as
wide as the grate that it comes out of and with the tip roughly vertical
or pushed towards the Alutec70 back of the firebox. You should have
the sensation that the flame is pulled upward so that it does not beat
against the glass of the door.
Fig. 1
On the other hand
a flame which at its base is bigger than the grate
and has a feeble character, whose tip is not "guided", or which beats
against the glass
(Fig. 2) may be a symptom of poor setting of the fuel
loading and/or smoke aspiration, or the smoke duct is obstructed or
there are high pressure areas that do not allow for regular smoke
outflow.
In this case you will ALWAYS have operating problems. Request
assistance from specialized personnel or ask technicians for advice.
4.11.2.
The colour
The colour is in some way connected to the shape of the flame. A
colour which varies between orange and yellow with a dark tip usually
goes along with an enlarged flame (as previously described) which
lacks oxygen or in any case indicates improper combustion. As the
colour changes to light yellow-white, the shape of the flame changes,
becoming thinner, showing the presence of a greater quantity of
oxygen.
4.11.3.
Character
Lively or feeble, this is closely connected to the shape of the flame.
NORMAL COMBUSTION
Shape:
Tapered, compact, vertical
Character:
Lively
Colour:
Yellow – light yellow - white
ABNORMAL COMBUSTION
Shape:
enlarged irregular not
compact
Character:
Tenuous - feeble
Colour:
Orange - yellow
Figure 2
Figure 1
