According to the American Iron and Steel Institute, the purpose of a blast furnace is to produce enough heat to extract iron from raw ore. Iron ore, coke and limestone are placed into a blast furnace and then heated unti... More »

Blast chillers rapidly cool food by circulating cold air through the unit until temperatures fall to safe levels. They are designed to lower the temperature of cooked foods quickly enough to minimize bacterial growth, en... More »

One prolonged blast from the horn of a vessel serves as a warning to other ships that an unseen vessel is in the water. Any vessels within earshot of the prolonged horn blast should reply with a prolonged blast of their ... More »

The annual fuel utilization efficiency measures the efficiency of a furnace by comparing the annual heat output of a furnace to the total annual fossil fuel energy consumed by that furnace. The Federal Trade Commission r... More » Home & Garden Heating & Cooling

A gas furnace is a part of a heating system, the purpose of which is to convert gas to heat. Gas furnaces are most commonly used in residential systems in cold weather climates. More » Home & Garden Heating & Cooling

Hot-water furnaces heat, store and distribute water throughout a home or building. Various types of furnaces use different fuel sources for heating and have varying storage capacities. More » Home & Garden Heating & Cooling

A Payne furnace provides heat to a home by circulating warm air through ductwork. Payne sells a range of high-efficiency gas furnaces with a variety of features. More » Home & Garden Heating & Cooling