Furnaces and Boilers | Department of Energy – Energy.gov
Boilers heat water, and provide either hot water or steam for heating. … over to oil or gas are prime candidates for replacement, as well as gas furnaces with pilot …
Oil-Fired Boilers and Furnaces | Department of Energy
A number of companies are now offering heating oil blended with biodiesel, … Steam boilers benefit from vent dampers more than hot-water boilers, and bigger … hour (GPH) rated nozzle in an oil fired combustion appliance to reduce fuel use.