No. 98% combustion efficiency heats larger homes using equal or less
fuel than to heat some smaller homes. Why? What should smaller homes
do to use less fuel?
Small homes often select the smaller and less efficient corn stoves.
Larger stoves have a larger and more efficient heat exchanger than the
smaller stove. The larger heat exchanger delivers more heat to the
inside and waste less heat out the exhaust even though combustion is
98% with about 5 gallons potash cake for both small and large
Smaller homes may select the larger corn stoves to benefit from the
larger heat exchanger. Selecting the larger corn stove will deliver
more heat using less corn energy. Larger homes benefit from the more
efficient heat exchanger from the larger corn stove.
Interestingly we have experienced smaller homes using more corn energy
for heat than larger homes. Large homes that start with the smaller
stove to heat one floor often exchange the smaller stove for a larger
corn stove. The larger corn stove heats the whole house and uses
about the same amount of corn energy that the smaller corn stove was
usign to heat one level. This phenomenon has been experienced on
several larger, multiple level, log homes.