"Biodiesel previously was overlooked as a heating fuel because heating oil was cheaper. But prices for conventional heating oil have doubled since 2001...
... the National Biodiesel Board's website now lists 19 companies that supply biodiesel-blended heating oil, known as BioHeat, to residential customers, and the list is growing. Most companies provide BioHeat blends that contain 5 percent, 10 percent or 20 percent of biodiesel (known as B5, B10 or B20, respectively) mixed with conventional heating oil, all of which can be used in existing oil-burning furnaces."
News and information about Biodiesel & alternative fuels.
Biodiesel Not Just for Cars Anymore
Wired reports on biodiesel-as-heating-oil for home use: