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Simple Fixes For Wood Furnace
Dawson Hill knows how to make a wood-fired boiler work better. His simple fixes automate basic outdoor furnaces.
  I added a few extra control systems with sensors, says Hill. They turn fans on and off according to the temperature in the house and in the boiler.
  Hill added a sensor and control for the combustion fan on his wood boiler. It automatically turns the combustion fan off when the boiler water drops below 100F.
  If the furnace is out of wood, this stops cold air from being blown into the house, says Hill.
  Hill also added 2 controls to his in-house system. The first senses hot water in the system. It turns on a fan to cool the water if it reaches 200F, thereby preventing it from boiling.
  I also added a sensor to turn the blower fan off if the water temperature gets below 100 degrees," says Hill. "It also triggers a small light I installed above the wood furnace thermostat. When the light goes on, it tells me the water temperature is very low, and I need to check on the furnace."
  Contact: FARM SHOW Followup, Dawson Hill, 6805 Mansfield Rd., Stittsville, Ont., Canada K2S 1B8 (ph 613 838-5165).

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2015 - Volume #39, Issue #6