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 until liquid iron can be separated from the ore.
Once the blast furnace is heated, there are several chemical reactions that take place. The coke is used to produce carbon monoxide, which is a reducing agent used to extract the molten iron from solid ore. The limestone serves as a fluxing agent that bonds with impurities to produce slag, which is then removed before the liquid iron is poured.Learn More
To clean a furnace, vacuum off the burners, and then get the debris off other important components, including the blower, flame sensor, surface igniters and pilot. Change the furnace filter to keep your furnace operating at its peak for another year.Full Answer >
The on-and-off cycling of your furnace depends on many factors, including proper system sizing, thermostat settings and weather conditions. Cycles that are too close together may indicate an oversized system.Full Answer >
Troubleshooting a furnace that does not turn off begins with examining it for a malfunction or clog. The thermostat, air filter and fuel supply can all be examined in less than an hour. If the error cannot be identified during these steps, contact your manufacturer and have a certified technician examine the furnace.Full Answer >
Lighting a gas furnace involves turning off the pilot valve, lighting the pilot with a long fireplace match, then turning the gas knob to the On position. This process takes less than half an hour.Full Answer >