Solo Plus Instructions 1-800-782-9927 Version 12-13
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
4.14 Firing Tips
It is important to use wood of an appropriate size (length and diameter) and to stack it properly so that
there are no ―holes‖ and ―hanging pieces‖ in the wood stack, which must then be regularly stirred with
the poker to form it into a compact mass. The diameter of the wood ideally should not exceed 4-6
inches (100-120 mm) as ―holes‖ would then form more easily in the wood layer, creating a risk of re-
duced heating output. Thick pieces of wood ideally should be split to a diameter of 4-6 inches (100-
120 mm).
See
Figure 4.5
for correct flame length
.
4.15 Operation During Summer
Solo Plus boilers will operate at highest efficiency burning wood during the cooler months, but, be-
cause of the characteristics of the gasification combustion system, it is possible to operate the boiler
through the fall and spring whenever the outside night temperatures require central heating. Proper
chimney draft and gasket seals are more critical to operation during the times of low heat demand. If
the chimney draft is too high or air leaks around the fan or doors, the boiler may tend to overheat. If
the chimney draft is too low, the fire will tend to either go out or smoke back-up through the fan and
into the building. The key to operating the boiler in the warmer months and even in the summer is to
install a Thermal Storage Tank System. Contact Tarm Biomass or your local dealer for more informa-
tion on Thermal Storage Tank Systems.
Boiler Operation, Maintenance, and Service > Firing Tips
Page 43
Fig. 4.5
Too Much Air
The flame is blue and too
short. Adjust knob to the
right
Too little Air
Flame too long and reddish yellow
Adjust knob to the left.
Correct setting
The flame is yellow and
pale bluish.
WARNING
We recommend not firing the Solo Plus boiler in the summer or other times of low heat
demand unless used with a Thermal Storage System.
Operation at lower output will cause greater creosote formation in the firebox. This
creosote, if excessive, can lead to shortened boiler life.
