Preparing Your Furnace for Winter

Regular maintenance along with periodic checkups by a
licensed heating professional are essential for continued safe and
efficient operation of your furnace. But don’t wait until the first
cold snap hits to make sure your furnace is ready for winter. Here
are some simple steps you can perform, plus some things you can ask
your contractor to do, to make sure your natural gas furnace will
keep your home warm and comfortable all winter long.
1. Clean or replace the filter. A
clogged filter restricts the flow of heated air from your furnace,
causing it to work harder and deliver less heat. 2.
Check the blower belt and oil the blower motor.

Loose belts can increase furnace operating time. Replace frayed or
cracked belts. Two or three drops of oil in the motor will keep it
running smoothly. (Sealed blower motors require no lubrication. If
you have questions, check your owner’s manual or call a heating
professional.) 3. Make sure blower doors are replaced
This keeps combustion byproducts such as
carbon monoxide separate from the warm air circulated through your
home. 4. Check to see that vents in the house are
Air in your home needs to circulate
easily through the vents. Your furnace works less when heated air
is not blocked and the cooler air can circulate back freely.
5. Check to see that the exhaust flue to the outside
is clear of obstructions and in good condition from the furnace to
the roof cap with all connections securely fastened.

You can check it by removing the flue cap near the furnace and
water heater and looking through the flue to the outside. Make sure
you replace the flue cap securely. If the furnace or water heater
are in an enclosed room or closet, make sure they get plenty of
air. These appliances need ten cubic feet of air for one cubit foot
of natural gas to operate properly. Furnace rooms or closets should
have door louvers or vents or a duct directly to the outside to
provide sufficient combustion air. 6. Remove all
flammable objects from around your furnace and water
Boxes, clothes, paints, aerosols, gasoline,
motorized yard tools, and any other flammable products should not
be stored near the furnace or water heater. 7. Check
to make sure your furnace, boiler and water heater have a green
sticker (Utah residents only).
This sticker
indicates your appliances are properly adjusted to safely burn
local gas supplies and are working as efficiently as possible. As
part of a complete annual checkup, your heating contractor can
perform a Green Sticker inspection and make any necessary
adjustments. For more information about Questar Gas’s green-sticker program click

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