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A heating system that breaks down in the middle of a cold winter night can be a
chilling experience.
That's why heating experts at the Trane Home Comfort Institute recommend that you
have your system inspected and serviced by a qualified heating contractor prior
to the beginning of each heating season, regardless of what type of fuel you use.
If you have a gas furnace, they say the best person to call is the dealer who installed
it or the manufacturer's local representative listed in the Yellow Pages.
While every inspection will vary somewhat, the Trane Home Comfort Institute has
compiled the following list of procedures most dealers will perform to ensure the
safe and efficient operation of your gas furnace all season long:
Check Thermostat Calibration.
An improperly calibrated thermostat will call for more or less heat than desired.
The former will cost you money, both will cost you comfort.
Check Air Filter.
A dirty air filter can reduce heating efficiency, increase energy usage and affect
the reliability of the equipment. Following the inspection, homeowners should clean
or replace the filter monthly during the heating season.
Check Blower.
A clean, properly adjusted blower and blower components are necessary to provide
the air flow that ensures proper capacity and maximum efficiency.
Check Burners.
To ensure smooth ignition and proper fuel combustion, burners are observed for proper
burning characteristics.
Check Heat Exchangers.
This inspection for cracks and corrosion helps ensure safe operation of the furnace.
Check Fan Control.
This ensures that the fan goes on and off at predetermined temperatures in order
to deliver the proper temperature of air to the house.
Check High Limit Control.
This is the furnace's principal means of preventing overheating and possible damage
to the unit.
Check Manifold Gas Pressure.
Proper pressure is required to control fuel input to the furnace burners.
Check Venting System.
All flue connections and elbows should be firmly fitted. There should be no cracks
or openings where the flue enters the chimney or side wall. There should be no obstructions
in the flue or the chimney to prevent the exit of combustion byproducts.
Many dealers offer preventive maintenance contracts that cover periodic inspections
and, if needed, repairs. According to the Trane Home Comfort Institute, the cost
of such a service is usually well worth the investment, especially in terms of peace
of mind.
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