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A-Maize-Ing Heat Corn Burning Furnaces

Highlighted Features

Storage Bin - Fourteen bushel capacity for up to 10-day operation on a single load.

Corn Metering Auger - Transfers kernels from storage bin to combustion chamber.

Furnace Auger - Supplies fuel to the fire pot.

Fan Control - Adjustable with high limit safety.

Built-in Heat Exchanger Cleaner - Removes residue ash from heat exchanger elements.

Combustion Chamber - Induced air flow generates maximum efficiency. Burn 99% complete, leaving about one pound of residue from 100 pounds of corn.

Ash Pan - For easy removal of ashes.

Heavy Duty Heat Exchanger - Made from 14 gauge steel for a long life.

Specifications (Model BM620-9)

Dimensions - Furnace 53" H x 27" W x 46" D
Dimensions - Bin 48" H x 36" W x 52" D
Weight - Furnace 440 lbs
Weight - Bin 50 lbs
Flue Pipe 6"
Plenum Openings 14 gauge steel
Fire Pot Cast Iron
Air Filter 20 x 20 x 1
Bin Capacity 14 bushels
Combustion Blower 60 CFM
Hot Air Blower 1/3 HP - 3 speed - 1,500 CFM
BTU's 100,000
Clearance to Combustibles:  
  Top .... 32" Front ... 30"  
  Side ... 6" Rear .... 18"  
  • Thermostat Controlled
  • UL Listed
  • Manufactured in right or left hand feed
  • Wood Pellet Model also available (with the substitution of fire pots and feed auger motors)

Cost Analysis

All heat output is measured in terms of BTU's. One BTU is the amount of heat needed to raise one pound of water one degree. Available heat per unit in alternative sources of fuel:

 
BTU Value Per Unit
Units Required to Produce 18,000,000 BTU's
Current Fuel Price Per Unit
Total Cost to Produce 18,000,000 BTU's
Dry Shelled Corn 9,000 / lb 2,000 pounds
(56 lbs per bushel = 36 bushels)
$4.00 per bushel
$143.00
Electricity 3,412 / KWH 5,275 KWH $0.08 per KWH
$422.00
Fuel Oil 140,000 / gal 129 gallons $2.70 per gallon
$348.00
L.P. Gas 91,000 / gal 198 gallons $1.46 per gallon
$289.00
Wood (Oak) 26,300,000 .7 cord (full) $115.00 per cord
$80.00
Coal 13,000 / lb 1,384 pounds (.7 tons) $140.00 per ton
$98.00
  • The above chart can be easily adapted to any price fluctuations by supplementing the applicable price in column 3 (Current Fuel Price Per Unit).
  • The BTU content of shelled corn will vary between 8,000 to 10,000 BTU's per pound. Use corn at 14-15% moisture content for peak efficiency.
 
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