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THE OPTIMIZER 250 OUTDOOR WATER FURNACE
The Optimizer 250 outdoor (or indoor*) water furnace is safe and highly efficient, conveniently
installed outside your house to give you the comfort you desire all year round using the oldest and
most environmentally friendly fuel of all: WOOD.
(* inside outdoor buildings such as barn, shop, shed etc.)
This unique system has a fire pot and a multiple pass heat exchanger which are totally immersed in 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 boiler tube style heat exchanger is
designed to extract useful heat from the exhaust flue which is virtually smoke free before they exit
through the insulated stainless steel chimney.
The water temperature is maintained at the desired level by means of Johnson automatic controls.
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. Always use the best
insulated and water proof pipe.
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 Optimizer 250 Water Furnace is equipped with a fan for forced combustion air to modulate the
burning rate as required, and with safety instruments that would 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
The ideal location for the Optimizer Water Furnace should be:
1.
Outside your residence for safety and lower insurance rates.
2.
In a separate structure such as your garage, shop or shed.
3.
Away from storage of wood, chemicals and other flammable materials.
4.
No closer than 50 feet from existing residence and other buildings.
5.
Downstream of prevailing winds relative to main residence.
6.
On the side of pipe entry to residence.
7.
Proper clearance distance to combustibles.
RECOMMENDATION
For extra safety, we recommend a hot water circulation loop that will dissipate at least 10% (ten
percent) of the estimated heat output of the water furnace in the event that circulation is reduced
because of electrical power failure. This loop should be such that it can only be made inoperative by
a deliberate manual action. The minimum pipe to be used should be 18mm (.75 inch) in diameter.