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 engine10-50%
Water Turbineup to 90%
Wind Turbineup to 59%
Solar cellcurrent maximum 42.8%
Fuel Cellup to 80%
Household refrigeratorsUp to 50%, according to rating
Incandescent light bulbs5-10%
Light Emitting Diodes (LEDs)            up to 35%
Fluorescent lamps28%
Electric shower90-95%
Electric fires/heatersaround 95%
Gazco gas fires/heatersup to 86%
Stovax multi-fuel stovesup to 87%
  

* Source: Wikipedia, except Gazco and Stovax figures

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Posted by on June 1, 2010