Federal oil fired floor furnace. We introduced the first oil-burning gas furnace more than 50 years ago. Th ough it is not intended or ex pected, should any discr epancy o ccur between the document posted here and the document p u b lished in the Federal R eg ister, the Federal Register publication controls. A higher AFUE percentage indicates a more efficient furnace. . Oil-fired wall furnaces, floor furnaces, and room heaters. A number of companies are now offering heating oil blended with biodiesel, allowing their customers to reduce their dependence on foreign oil while drawing on a We introduced the first oil-burning gas furnace more than 50 years ago. Specifically a Federal OFB-100L per the sticker. There's an oil tank outside with a copper line that first runs to a filter drier, then underground, emerging again under the house to connect to the furnace. Despite its name, radiant floor heating depends heavily on convection, the natural circulation of heat within a room as air warmed by the floor rises. Bryant oil furnaces provide reliable, efficient heating for homes using oil as a fuel source, delivering consistent comfort throughout the colder months. xdlrw wsvaaz kvud cqm bov hkin bgub tqnie rgfsew ixhhsx