NATURAL GAS FURNACES
OIL FURNACES
An oil furnace offers efficient heating, proven reliability and easy maintenance. They are built for a
long life and efficient operation.
An oil fired warm air furnace uses no. 2 fuel oil burned in a sealed chamber to heat an exchanger.
Then with the help of a blower or fan, forces air across the exchanger, into ductwork to warm the
structure.
The basic components of an oil furnace are: the burner, heat exchanger, fire box, blower and cabinet,
sometimes known as the jacket.
Accessories that can be installed inside or outside of the oil furnace include: a fan center, an air filter,
electronic air cleaner, or high performance media filter, humidifier and air conditioning evaporator
coil. With central air, sometimes a condensate pump will be used to remove the water discharged in
the dehumidification action of the air conditioning.
A zone control panel and motor actuated dampers will be present on the oil furnace or ductwork if the
system is zoned.
Routine oil furnace maintenance includes; monthly filter replacement or washing the electronic air
cleaner grids when in constant use, cleaning the humidifier if there is one and an annual tune up of the
burner
An oil burner tune up includes a nozzle and filter replacement, heat exchanger and smoke pipe
cleaning, and a fuel to air mixture adjustment. Since the mixture adjustment requires the use of
special instruments to meet federal standards, it is best left to a professional to obtain peak efficiency.
ELECTRIC FURNACES
An electric furnace may have a few different characteristics.
Electric Heat Elements
These units work from metals being heated by a certain current flow (either 120v or 240v).
These can be installed as baseboard heaters,
heating wire embedded in ceilings or walls or panel
units built into the wall.
There are three types of electric heating elements:

Natural gas is a combustible, gaseous mixture of simple hydrocarbon compounds, usually found in
deep underground reservoirs formed by porous rock. Natural gas is a colorless, odorless fossil fuel
composed almost entirely of methane, but does contain smaller amounts of other gases, including
ethane, propane, butane and pentane.
Natural gas is used extensively in residential, commercial and industrial applications. It is the
dominant energy used for home heating with about 51% of American homes using gas. The use of
natural gas is also rapidly increasing in electric power generation and cooling, and as a
transportation fuel.
Natural gas is the cleanest burning fossil fuel, producing primarily carbon dioxide, water vapor and
small amounts of nitrogen oxides. Other fossil fuels are coal and oil, which together with natural gas,
account for about 88% of U.S. energy consumption.
Gas heat makes homes feel more comfortable because it circulates air that is warmer than body
temperature.
Energy Efficient: With efficiencies up to 98% and the fact that 90% of the natural gas that is mined
and drilled actually makes it to the end user, natural gas furnaces are one of the most efficient
heating options available.
Warm Air Circulation: The air circulated by a natural gas furnace is about 115 degrees, which is
substantially warmer than body temperature.
How Gas Furnaces Work: Gas is delivered to a combustion chamber where heat is created. This hot
air is contained in the heat exchanger, where air or water is used to deliver the warm air to the house.
The by products are vented outside.
Oil Furnace
Larry Harding "Captain of Comfort"
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