1.1 Boiler Fabrication and Testing
Your boiler was manufactured by Froling, a world leader in hot water
(hydronic) heating for over 40 years. The FHG Series boiler conforms to
traditional high standards for quality and reliability. It offers modern
wood gasification technology with high operating efficiencies at over
90%. If treated properly and operated according to the guidelines in this
manual it will provide years of safe, dependable, and economical heat-
ing.
FHG boilers are designed and built in accordance with European Stand-
ard EN 303-5. Safety and performance testing and listing for North
American markets have been performed by OMNI Test Laboratories,
Inc., Portland, Oregon. The boiler is tested and listed to applicable UL,
CAN and other standards. The boiler is not ASME stamped. The installer
should follow local or state installation requirements.
The FHG wood gasification boiler is a log wood fired boiler designed and
constructed for highly efficient combustion of log wood.
Do not burn other fuels in the FHG boiler. The FHG is not a self con-
tained weather-tight boiler. It should be installed within the heated
building. FHG log wood boilers must be installed with a thermal storage
system capable of absorbing the complete output of the boiler during
periods when the building is not calling for heat.
1.2 Models and Applications
Four FHG models are available (20, 30, 40 and 50) covering an output
range between 68,000Btu/hr and 170,000Btu/hr. Specification data for
each FHG is provided in the Installation Manual.
The boilers can be utilized as a single heat source, or in parallel with an-
other boiler.
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