The 3WOOD is a new generation of wood boiler that challenges our oil dependency. It is efficient, easy to use, and produces low emissions.
Unlike wood boilers from the past, the 3WOOD dispels the notion that wood boilers are labor intensive, inefficient and polluting. 3WOOD offers consistent high efficiency with a large heat exchange surface and secondary combustion chamber.
THE 3WOOD’s water-cooled grates, large finned firebox and secondary combustion chamber maximize the burn time and
minimize wood consumption. Easy adjustments to the automatic temperature control, secondary air regulator, and flue gas damper enhance fire maintenance.For over 70 years, the BIASI foundry has maintained a reputation for precision pressure castings and quality control that exceeds all international standards. The 3WOOD series is available in four sizes ranging from 75,000 to 120,000 BTU/HR. All threads and fittings are compatible with North American controls and accessories. 3WOOD, the only ASME certified and ETL approved cast iron wood boiler on the market, embodies the design innovation of QHT BIASI.
QHT BIASI 3-Pass Technology
1st Pass Wood burns in a large,finned combustion chamber with water-cooled grates.
2nd Pass Vented firebox gasses mix with very hot, preheated air in the secondary combustion chamber thereby enhancing oxidation.
3rd Pass Remaining exhaust heat is given-up in a wide finned, self-cleaning passageway before exiting the boiler.
ASME Certified Boiler Rated at 58 psi
ETL Approved for USA and Canada
Secondary Combustion Chamber for High Efficiency and Low Emissions
duct smoke detectors provide early detection of smoke and
products of combustion present in air moving through an
HVAC duct. These devices are designed for prevention of
smoke recirculation in
areas by the air handling systems. Fans, blowers, and
complete systems may be shut down in the event of smoke
detection. Universal voltage models will operate on any
one of four input voltages (230 VAC, 115 VAC, 24 VAC or 24
Firex® duct smoke detectors are available with
either an ionization detector head (2650-560) or a
photoelectric detector head (2650-561). Each
duct smoke detector contains two form “C”
alarm contacts and one form “C” trouble
contact. Visual indicators are mounted on
the housing front for ease of pilot and alarm
status indication from high mounting locations. A
manual test/reset switch is also provided on the
front of the detector to make frequent testing
Air sampling is accomplished by two tubes,
which protrude into the duct. An
exhaust tube of one standard length (7'') is
provided with each Firex duct smoke
detector. Intake sampling tubes, which must
be ordered separately, are available in
three standard lengths. Duct
smoke detector mounting is accomplished by
the use of a mounting template and four
sheet metal screws, which are provided. Also
available are special UL 50 listed, NEMA 3R
weatherproof enclosure (Model 0590) which
can be used in appropriate outdoor or indoor
applications for protection from the
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Ratings - 2 sizes
168,000 to 350,000 Btuh Input
1.20 to 2.50 GPH #2 Fuel Oil
AFUE’s to 86.5%
Heavy gauge stainless steel primary
Tube style aluminized steel secondary
heat exchanger with removable baffles
Compact size for easy replacement of existing equipment (see specs.)
Spring-loaded observation port with
PLB-210 - Multi-speed direct drive
PLB-350 - Belt drive
Appliance finish powder coat paint
PLP-350 is 230 Volt
CSA Design certified for U.S.A. and Canada.
Complete assembled, factory tested furnace, for heating or combination heating/cooling application.
For utility room, closet, alcove, basement.