Corn Furnaces


Corn Furnaces

A corn furnace is an alternative heating appliance that can be used to priovide the heating needs for homes and businesses that use a warm air ducted heating system. All corn furnaces are designed to burn shelled corn kernels as the primary fuel supply. The main component of a corn furnace system is the furnace unit itself. A typical corn furnance unit includes a combustion chamber, a combustion blower, an ash pan, a furnace blower and finally the connections for the ducted warm air distribution system. Also needed as part of the system will be a storage bin used to store the fuel corn and a regulated auger to transfer the shelled corn fuel kernels from the storage bin into the combustion chamber. A power supply is needed for the augers so if you live in an area subject to frequent power outages you should note that some models of corn furnace incorporate a backup battery power supply, otherwise you may need a power generator as backup.

A modern efficient corn furnance with an induced air flow supplied by the combustion blower will operate at maximum efficiency of a 99% burn, hence the residue from burning 100 pounds of corn would be approximately one pound of ash. A large storage bin will need less frequent refilling during the heating season. As a general guide a large 14 bushel storage bin should be big enough to supply at least 10 days of fuel corn on a single load during the heating season.

In recent years corn burning has provided a very cost effective method of providing heating, however you do need to keep an eye on the commodity prices as there have been large fluctuations in the price of corn over the last couple of years. Corn is of course a renewable energy source that is carbon nuetral and it reduces our dependency on foreign fuel sources and on burning fossil fuels such as oil and coal.