Scott worked out a couple ways to improve the efficiency:
1- Adding an air supply to support secondary combustion. This improves combustion efficiency and heat output, and reduces pollution.
|The added air supply to support secondary combustion.|
|New piping to supply preheated air for secondary combustion near|
the top of the firebox.
2 - Retrofitting a catalytic combustor which goes into the flue to burn the remaining burnable stuff in the smoke. This also improves the combustion efficiency and heat output, and further reduces pollution.
|Close up of the catalytic combustor (on right) and the bypass|
damper to allow the cat to be bypassed.
|Shows the new catalytic combustor installed just |
above the stove in the flue.
Scott provides a lot of detail on how he built the two devices and also goes through a nice, simple and inexpensive way to measure wood burner efficiency with just an anemometer and a thermometer.
All the details on Scott's wood burner efficiency project...
More projects and information on wood burners and biofuels...