The Ultimate Furnace Cleaning Quiz

By: HowStuffWorks.com Contributors

The Ultimate Furnace Cleaning  Quiz
Image: iStockphoto/Perry Gerenday

About This Quiz

Your furnace has the tough job of continuously keeping the air in your home warm. Your furnace, therefore, requires some tender loving care for continued efficiency. Not only should you change or clean your furnace filter regularly, you should also clean the interior of your furnace.
Regular furnace cleaning can reduce your energy costs by:
1 to 5 percent
5 to 15 percent
It's worth the effort. Regular furnace cleaning can save you between 5 to 15 percent on energy costs. If you live in a cold climate, this can mean significant yearly energy savings.
15 to 20 percent

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What do you need to clean a permanent furnace filter?
a sink and a vacuum
a hose and scrub brushes
both of the above
If you have a permanent furnace filter, you'll have to clean it on a regular basis. You'll need a vacuum or shop vac, a sink, a garden hose and scrub brushes to do the job.

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What is the most important part of the furnace that needs regular cleaning?
the filter
Above all else, you should regularly clean or replace your furnace filter. The cleanliness of this item essentially dictates how clean the air in your home will be.
the burners
the pilot

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How often should you clean your furnace?
every six months
once a year
You, or a maintenance technician, should clean and inspect your furnace once a year.
every two years

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What should you do after you cut off your furnaces electricity and/or gas?
Check for overheating.
Perform a visual inspection of the furnace.
both of the above
Check your furnaces wires for any overheating, which may be a sign of furnace malfunction. Also perform a general visual inspection for any noticeable problems.

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How do you clean a furnace?
Vacuum the inside of the furnace.
Clean the surface of the furnace with a brush.
both of the above
It's important to clean off any debris or dust from the furnace. Do this by vacuuming the furnace and cleaning the surface of the furnace with a brush.

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How do you clean a outdoor furnace unit?
with a garden hose
with a rag
both of the above
First, clean your outdoor furnace unit by washing down the grid from the inside out with a garden hose. Next, wipe down the blades with a rag.

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What is the purpose of coil cleaner?
to easily clean the coils on an outdoor furnace unit
Coil cleaner can break down dust and debris that fall on the coils of your outdoor furnace. First, apply the coil cleaner to the coils from the outside. Next, wash down the coils with a garden hose.
to clean the burner coils of an indoor furnace unit
both of the above

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What part of the furnace should be cleaned with a toothpick or toothbrush?
the coils
the burners
the area where the filter sits
It's best to clean away as much debris and dust as possible. So get down there and clean the area where the filter sits with a toothpick or toothbrush.

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How often should a furnace be oiled if it has oil ports?
every six months
every year
Most furnaces do not require oiling. However, if your furnace has oil ports, you need to lubricate it every year with a 10-weight nondetergent motor oil.
every two years

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Besides reducing your heating bills, what's another advantage of regularly cleaning your furnace?
reduces the risk of carbon monoxide poisoning
Regularly cleaning your furnace helps improve the quality of the air inside your home. It also potentially reduces your risk of carbon monoxide poisoning.
reduces the risk of a house fire
both of the above

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Why does your furnace need to be dry before you turn it back on?
A wet furnace does not work properly.
You can cause an electrical short circuit.
Water and electricity don't mix! Avoid spilling water around your furnace and definitely do not turn on your furnace if it's not dry.
The furnace will send water through the vents.

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What should you wear when cleaning your furnace?
safety boots
a mask
Cleaning your furnace may release a lot of dust and particles into the air, so you may want to wear a mask.
an apron

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What tool from your toolbox will you need to clean your furnace?
a screwdriver
The only tool you need to clean your furnace is a screwdriver. You'll need the screwdriver to open the furnace panel.
pliers
a hammer

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How much does it cost for a professional to clean your furnace?
under a hundred dollars
around a hundred dollars
hundreds of dollars
It may be worth your while to clean your own furnace. A professional typically charges hundreds of dollars for yearly furnace cleaning and maintenance.

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You Got:
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iStockphoto/Perry Gerenday
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