To convert from the old style motor-to-fan coupling to the new style, view the fan hub picture below. Next to the motor shaft are two raised tenons on either side. Cut these off with a hacksaw so the surface is flat. You can now use the new style coupling. These couplings will work with any of the gearboxes or fans.
Stoker Coal Boilers automatically feed the coal and have controls and pumps just like any conventions boiler. They are intended to be used as a primary heat and often have domestic hot water coils as an added bonus. They can be set up independently or in dual sytem with your existing oil/gas boiler. They can accommodate both hot water base board or steam plumbing.
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