snipped-for-privacy@ece.villanova.edu wrote in news:dg3vs1
> $ snipped-for-privacy@acadia.ece.villanova.edu: >
>> George wrote:
>>
>>>> only about 65% efficient...
>>>
>>>"Efficiency" is a matter of how long you can keep the warmed air in the
>>>space to be heated.
>>
>> You are talking about something different. We might say that a heater's
>> efficiency is the ratio of the amount of heat released to the house to
>> the total amount of heat released when the fuel is completely burned and
>> the combustion products are cooled to room temperature.
>>
>> Nick
>>
>>
>
> "Combustion efficiency: (actual heat produced by combustion) divided by
> (total heat potential of the fuel consumed)"
>
>formatting link>> This is a very good resource about bioenergy.
I still read Ed as talking about stove efficiency, which is how much of what's produced by burning is recovered to heat the space rather than the chimney. Nick's definition.
Combustion efficiency suffers on oil burners as well, do to incomplete atomization and combustion.