I have information on the only oil stove that is tested and certified to burn biodiesel.  If anyone would like more information please don't hesitate to email me luke@nwdinc.com.  There are 3 models available with capabilities of heating between 800 and 3,000 sq. ft.  If you currently are making or have access to biodiesel this is an excellent alternative to heating your residence.

Thank you for displaying your fireplaces at the recent Seattle Forum 2007. It was great to see some heating alternatives to fossil fuels!

more info:

http://www.kumastoves.com/bio_diesel