biofuel to heating Submitted by an Anonymous Greaser on Mon, 2008-07-21 15:01 I was wondering if I could use biofuel for home heating in my oil furnace Reply to this post Waste Oil Heaters Submitted by an Anonymous Greaser on Tue, 2008-07-22 11:30 Not if it's a typical oil fired furnace (clean oil). There are special waste oil heaters available that can handle the dirt and grime. These waste oil heaters are for use with used engine oils. reply Reply to this post Your name Comment * Location * What code is in the image? * Enter the characters shown in the image.