Portage & Main Outdoor Water Furnace Brick Lined BL Ultimizer Series—Wood Burning-- January 2013
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THE PORTAGE & MAIN OUTDOOR WATER FURNACE
The Portage & Main Outdoor Water Furnace is safe and highly efficient, conveniently installed
outside your house to give you the comfort you desire for your heating season using the oldest
and most environmentally friendly fuel of all: WOOD.
This unique system has a fire pot and heat exchanger which are surrounded with a water
jacket that keeps its components from overheating and warping. The front door is insulated and
built of heavy gauge material to eliminate warping. The multi-pass heat exchanger is designed to
extract useful heat from the flue gases before they exit through the insulated stainless steel
chimney.
The water temperature is maintained at the desired level by aquastats. The heated water is
pumped to the house and the other buildings by means of individual circulating pumps through an
individual underground loop for each building or application.
The heating loop will provide the required amount of heat to your house or building,
regardless of your existing heating systems as described later on. You can also add a water-to-
water heat exchanger to your system to provide you with all your domestic hot water
requirements to increase your fuel savings considerably.
The Portage & Main Outdoor Water Furnace is equipped with a fan for forced combustion air
to modulate the burning rate as required, and with aquastat and hi-limit aquastat which in the
event of failure of the A419 control aquastat, the hi-limit aquastat will prevent the water from
overheating or boiling.
Please follow the instructions contained in this Manual to enjoy the comforts of heating with
wood in a safe manner.
LOCATION
Check with your local jurisdiction codes. In addition to the local codes other consideration may
include:
Outside your residence for safety and lower insurance rates.
In a separate structure such as your garage, shop or shed.
Away from storage of wood, chemicals and other flammable materials.
Downstream of prevailing winds relative to main residence.
On the side of pipe entry to residence.
