Grain stoves look similar to
wood or pellet stoves but
instead burn corn, wheat,
rye, or other organic
materials such as cherry or
While most customers are
farmers with easy access to
corn crops, he says word is
spreading across the country.
Pictured below is the Lil' Cozy
Grain Stoves - Multi Fuel Stoves and Furnaces
This mobile home, UL approved stove has a heat input of
30,000 - 35,000 Btu; enough to heat 1,000+ square
According to the manufacturer, the stove consumes 2.8
pounds of fuel per hour giving you 14 - 16 hours of burn
time from each fill of the 40 pound hopper.
Grain stoves burn the grain kernel's starch, emitting
mostly carbon dioxide. The only waste product is a lava
rock-like substance that is mostly potash and can be
recycled as fertilizer.
|The Lil Cozy stove
measures 24"x 24"x 30"
Heat is circulated by an electric blower, but if the power to your home goes
out, the blower(s) won't work and you won't get any heat.
You can avoid this chilly prospect by purchasing a back-up power system
consisting of a marine battery and inverter or a portable generator for
The Prairie Fire grain stove is roughly half again
the size of Lil Cozy with a heat output of
Manufactured in Saskatchewan, Canada, it is
UL/ULC listed and certified for mobile home use.
In addition to wheat, rye, and corn, it also
burns wood pellets. The hopper accommodates
one bushel of fuel which should last 12-24
hours depending on the heat setting.
Installation of grain stoves is simple and
straightforward with a direct vent from the
stove through the nearest wall.
Venting kits cost $250 - $500 depending on main level, corner, or through
the roof installation.
Grain Burning Furnaces
Moving up in size, and BTU output, are indoor grain
furnaces capable of heating your entire home.
One example is the 110,000 BTU Maxi Comfort
Grain Furnace which will heat up to 3,500 sq ft.
The list of features include a 200 lb (4 bu) capacity
hopper, 5 position modulating temperature range
setting, manual or thermostatic control, dual augers
to prevent burn back smoke issues and a fuel break
According to the manufacturer, maintenance is as easy as emptying the burn
pot every 2 or 3 weeks. Cleaning the heat exchanger is done by pulling a
Cleaning Handle in and out a few times.
Also included with the Maxi Comfort is a wood pellet burn pot insert, powered
vent with WMO safety switch and a battery back up.
it's the experience of the manufacturer that an average 2,500 sq ft home will
require 3-4 tons of fuel per year. For the 2015 heating season bulk corn fuel
is selling for around $225 a ton for an annual fuel cost of $900.
The beauty of having a multi-fuel stove or furnace is having the option to
choose the cheapest available fuel at the time; whether it be corn, wood
pellets or grain.
Constant heat vs on demand heat
The literature for the Maxi Comfort furnace highlights how the constant heat
of a grain furnace provides heating comfort superior to on demand heating
systems such as oil and gas fired furnaces.
The reason for this is the burn pot is always fired up as opposed to an oil or
gas burner which cycles on and off. However, in order to enjoy constant heat
from the grain furnace it must be operated manually and run continuously.
Otherwise, if the furnace is run thermostatically, the circulation blower will
cycle on and off just like an oil or gas furnace.
Tax incentives and rebates
Multi fuel stoves of all types are very efficient. Testing has shown them to
have efficiency ratings exceeding 80% which qualifies them grants, rebates or
tax credits depending on the available incentive programs where you live
|Maxi Comfort Grain Furnace