Gas fires and woodburning stoves are highly efficient

Gas fires and woodburning stoves are highly efficient

How modern gas fires and wood burning stoves measure up in today’s high tech world

With the need for energy efficiency on everyone’s lips, it is interesting to see how modern gas fires and wood burning stoves measure up in today’s high tech world.

 Energy conversion efficiency is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The useful output may be electric power, mechanical work, or heat. Energy conversion efficiency is not defined uniquely, but instead depends on the usefulness of the output. Here are the approximate efficiencies for some items you may know:

Energy efficiency*
Combustion engine 10-50%
Water Turbine up to 90%
Wind Turbine up to 59%
Solar cell current maximum 42.8%
Fuel Cell up to 80%
Household refrigerators Up to 50%, according to rating
Incandescent light bulbs 5-10%
Light Emitting Diodes (LEDs)             up to 35%
Fluorescent lamps 28%
Electric shower 90-95%
Electric fires/heaters around 95%
Gazco gas fires/heaters up to 86%
Stovax multi-fuel stoves up to 87%
   

* Source: Wikipedia, except Gazco and Stovax figures

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Posted by on June 1, 2010