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In contrast with older gas furnaces, an oil burning furnace does not use a pilot light. An oil furnace typically uses an electronic ignition switch system. to power up. More »

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Once the pilot valve has been set to the "pilot" position, lighting a pilot light simply requires using a match or lighter. After the pilot light is producing a steady flame, the valve can be set to the "on" position, wh... More »

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To light the pilot on a Williams gas furnace, turn the valve to off, and wait at least 3 minutes for any gas to dissipate. Locate the pilot inside the furnace, light a match, place it near the pilot, and turn the valve t... More »

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To troubleshoot problems with a gas furnace's pilot light, it is important to check the pilot light mechanism and flame as well as the gas supply and the condition of important parts, such as the thermocouple. This cover... More »

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Oil furnaces burn heating oil, which is similar to diesel, while gas furnaces use natural gas. Heating oil is delivered by truck to each customer and stored in an aboveground storage tank. Natural gas customers are hooke... More »

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Typically, gas furnaces cost about 10 to 25 percent more than oil furnaces initially, but the average cost of heating oil is higher than natural gas. Gas furnaces are also about 10 percent more efficient than oil furnace... More »

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Wood-burning furnaces offer a potentially cheaper heating alternative, based on the fluctuation of gas and oil prices, reports eHow. However, the advantage of a multi-fuel furnace is the ability to alternate between wood... More »

www.reference.com Home & Garden Heating & Cooling