18
©2009 Eco-Orlan USA LLC. All Rights
Reserved
.
Revised August 2009.
Model/
Btu
output
% of air blower opening
Chimney draft 0.04 IWC
Chimney draft 0.08 IWC
Wood Moisture %
Wood Moisture %
15
20
25
30
35
15
20
25
30
35
Paxo
®
18
75,000 Btu
30
30
30
30
40
30
30
30
30
30
Paxo
®
25
85,000 Btu
50
50
50
60
70
50
50
50
50
60
Paxo
®
40
137,000 Btu
100 100 100 100 100 100 100 100 100 100
Paxo
®
60
205,000 Btu
50
50
60
70
80
50
50
50
60
70
Paxo
®
80
275,000 Btu
100 100 100 100 100 100 100 100 100 100
23. Air Controls Functions
The sliders on the blower/blowers-depending on the model, determine how much air is available to both primary and secondary
combustion chambers. These openings are the sole source of air for all combustion in the Paxo® boiler.
The primary air inlets
determine how much air is available in the primary (upper) combustion chamber, where the fuel undergoes
pyrolysis.
The secondary air inlets
regulate how much air goes into the steel tubes, where it is superheated before being used by the
nozzle/nozzles to achieve secondary gasification.
Proper air adjustment is critical to achieve the most efficient boiler’s performance. If dry wood is used for burning and it is positioned
properly over the nozzle, but there is smoke coming out of the chimney, usually it indicates that not enough air is reaching the
secondary air tubes.
The steel plate upon which the fan or fans is mounted can be removed with 12 sheet metal screws to gain access to the primary air
inlet sliders. When placing the steel plate back, make sure to apply even pressure to all the screws to form a consistent seal. Without
a consistent seal, smoke will leak around the gasket and into the boiler room.
