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:

The buildings in which electric furnaces are most
efficient are the buildings where the walls and ceilings
have been insulated as thoroughly as possible to reduce heat losses. This will cut the
operating cost to a minimum. Basement walls or the floor slab of buildings without a
basement must be insulated. Windows should be double glazed. Wood or plastic
window and door frames are preferred, rather than metal. Walls should have 4" of
insulation and ceilings, 7". The floor slab should be insulated 4" thick and 42" deep. The
basement wall should have 2" to 4" insulation.
Humidity control may require dehumidification rather than humidification. The building is
likely to be very tight. Relative humidity builds up from cooking, laundry, bathing, pets and
other sources. Compared to sources of heat that require burning, electric heating
produces no draft. It does not pull excess water vapor out and replace it with drier
outside air.
About Natural Gas:
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.
Natural Gas
Furnace
Oil Furnace
Larry Harding "Captain of Comfort"
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HEATING HARDING COOLING 1-866-YOU-WARM (968-9276) "For Your Comfort"
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