A waste oil fuel burner can be beneficial for industrial or personal processes, which generate large amounts of waste oil. The burner can save on disposal costs, or even covert energy into heating. There are, however, a number of technical, environmental, and legal considerations involved.
There are many different designs available for a homemade waste oil fuel burner. Some can be purchased online and some are available from hobbyists for free. The process, however, should involve clean burning--both for your own safety when heating rooms and for local pollution regulations. Consider purchasing plans from a reliable source if you are unsure of your own technical knowledge and abilities.
A waste oil fuel burner generally consists of several components, including: A furnace or boiler (some models incorporate copper tubing for this); a system of preheating the fuel; and an air compressor or air intake mechanism.
In addition, many conventional furnaces and boilers can be simply modified to accommodate waste oil, if they have a combustion chamber.
Waste oil can be quite expensive to dispose of, and many sources will gladly give it away. Possible sources of inquiry include anyone working with or servicing heavy machinery. Many burners can run on vegetable oil as well, which can be obtained from restaurants.