The heat exchange tubes in the boiler will accumulate fly ash on their inner surface
resulting in lowered boiler efficiency. These tubes should be cleaned daily by moving
the tube cleaning lever on the side of the boiler back and forth several times. Ash
should be removed as needed from the area below the heat exchange tubes via the
small ash door. This ash door may be located either on the left or right side of the boil‐
er and is down low on the boiler near the back. The turbulators should be removed
from the boiler and the heat exchange tubes manually brushed with the provided wire
brush on an annual basis. At the same time, the vanes of the draft induction fan
should be cleaned with a stiff paint brush and a vacuum cleaner. The flue gas temper‐
ature sensor should be wiped clean with a clean dry cloth and the oxygen sensor in‐
spected and cleaned if necessary also on an annual basis.
Gaskets on the fuel loading, lighting and ash removal doors should be checked for air
tightness periodically.
While the S3 Turbo burns exceptionally cleanly and produces little or no visible
smoke, it will, from time to time, produce small amounts of visible smoke and wood
smoke odor. Because of this, the boiler and chimney should be located so as not to
disturb building occupants or neighbors. Adequate chimney height is important and in‐
stallation in small valleys and too close to neighbors should be avoided.
This appliance’s rated efficiency was determined by an independent testing lab using
the higher heating value of wood and the test protocol prescribed by the US Environ‐
mental Protection Agency. Because the S3 Turbo is a batch-fed boiler and is intended
to burn at maximum output whenever it is operating, daily operating efficiency and An‐
nual Fuel Utilization Efficiency are the same regardless of time of year or outdoor tem‐
peratures.
Because of the S3 Turbo´s Lambdatronic control, this boiler is able to burn efficiently
using firewood with a moisture content of up to 25%. That being said, higher moisture
content fuel is inherently less efficient than drier fuel because more energy is used to
dry the wood before it can be burned. We recommend firewood with a moisture con‐
tent of between 15% and 20%.
The S3 Turbo is meant to be installed inside an insulated structure; preferable the
dwelling that it is heating. While a boiler installed indoors has heat loss from the boiler
jacket, that standby heat “loss” is recovered and contributes to the heating and so is
not in fact, “lost”. Thermal storage tanks will also have heat losses into the building. If
you are planning to use the boiler to produce your domestic hot water during the
warmer months, we recommend that you insulate the thermal storage tanks especially
well so as to minimize these losses and the resulting warming of your home.
The combustion of any fuel produces potentially harmful emissions of smoke and Car‐
bon Monoxide. The emissions data for this appliance may be found on the table listing
all boiler specifications found in chapter „Technical specifications“ in this manual. As a
batch-fed and Lambda controlled appliance, emissions are relatively consistent
throughout the burn cycle.
We recommend the use of both smoke detectors and Carbon Monoxide detectors in
buildings where this appliance is installed.
Description of the boiler
3
Functional description
Owner´s Manual S3 Turbo | B1390016_en-us
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