Ask These Questions When Buying A Corn Stove
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As you consider the purchase of
a corn-burning stove or boiler,
you will undoubtedly have many
questions.

Below you will find questions
that are designed to help you
make an informed decision.

The answers to these questions
may vary from model to model,
and the anticipated location and
function of the stove.

Many of these same questions
are equally useful when
considering the purchase of a
wood pellet stove.
  • Does the corn-burning stove have UL or CSA certification on the testing label?

  • Does the operator's manual for the stove state that 100% shelled corn can be
    burned or must the corn be mixed with wood pellets for good combustion?

  • Are there any other fuels that can be burned in the corn-burning stove? If so, what
    adjustments or stove modifications are required to burn some other fuel?

  • How often will the supply hopper need to be filled when the stove is burning at full
    capacity?

  • What are the maintenance requirements of the corn-burning stove compared to
    other stoves? How often do clinkers need to be knocked loose and removed? Must
    an additive (such as oyster shells) be burned along with the corn to ease the
    cleaning requirements?

  • Are sugars from burning corn likely to accumulate in the combustion chamber? If so,
    what is the recommended way to remove the sugars?

  • Where can shelled corn be purchased in this area? Be sure to have a plan for
    storing the shelled corn you purchase for the heating season and perhaps beyond.
    (See the link on the web site to “Storage Requirements of Shelled Corn.”)

  • What is the recommended moisture content for the shelled corn in order to get good
    fuel combustion?

  • What type of exhaust ventilation system must be provided for the corn-burning
    stove? What are the local code requirements and insurance requirements for
    handling the combustion exhaust?

  • What size corn-burning stove is needed for the intended application? Is the house
    layout appropriate for the convective movement of the heated air throughout the
    whole house? You need to decide if the stove is intended to be the primary heat
    source for the building or if it is intended to serve as a supplementary or back-up
    source.

  • Can the corn-burning stove be connected with an existing hot water or hot air
    distribution system?

  • How much experience does the dealer have with installing and servicing corn-
    burning stoves and boilers?

  • Which stove models are intended for residential applications and which models are
    for commercial and industrial applications?

  • What warranty comes with the stove? Under what conditions will the warranty be
    voided?

Visit the Department of Agricultural and Biological Engineering - Penn State University for
additional corn related information and  
Energy Strategies.                        
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