Hang Zhou Dawn Air Conditioning Co .,Ltd.

Heating oil is produced from petroleum at refineries. In 2007, about 107 million homes were heated using oil in the U.S., according to the U.S. Department of Energy.
Tanks
Boilers and furnaces fueled by heating oil use indirect and integrated tanks, according to the American Council for an Energy Efficient Economy (ACEEE). Integrated tanks that provide both hot water and heating supplies, and indirect tanks use heat exchangers to provide hot water.
Heat Exchanger
A heat exchanger is a chamber filled with hot air released by a furnace or boiler, into which a coil or pipes are inserted containing a liquid. The hot air within the heat exchanger warms the liquid within the coil or pipes to provide heat for the water stored in an insulated water tank.
Efficiency
Heat exchanger are most efficient in areas that have a colder climate where a heating system does not need to double as a cooling system. Heat exchangers heated with oil are commonly used in the Northeastern U.S..
.