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Quick Answer: How To Replace A Furnace Filter

Can I replace furnace filter myself?

To Change Your Home Air Filter, You’ll Need To Turn Off Your Furnace. To prevent the HVAC unit from turning on while you are changing the filter, make sure you turn the thermostat to the “off” position. For maximum safety, disconnect power from your furnace system while you are doing maintenance.

Which way does a filter go in the furnace?

Slide the new filter in with the arrow pointing toward the furnace. Replacing your air filter is not difficult. Remember that air flows from your ducts, through the filter, and into the furnace. The arrow on the filter should always point toward the furnace.

What happens if you put a furnace filter in backwards?

When a furnace filter is placed backwards, the fibers can’t do their job properly. This means your furnace has to work harder to generate the same air flow, resulting in increased energy costs. Particles are also allowed to build up irregularly, making the furnace working even harder to draw air.

How do I know when to replace my furnace filter?

The best test to know if a furnace filter is ready to be changed is to hold it up to a bright light . If you can still see light through the filter then air is still getting through the filter. If you suspect the filter is dirty enough to restrict the air flow, then change it out to a new filter.

Can you run a furnace without a filter?

Technically, you can temporarily run a furnace without a filter. The consequences of running a furnace without a filter include: Poor air quality: For one, not having a filter in place means there is nothing to prevent dust and debris from being sucked into your furnace and recirculated throughout your home.

How do I know which way the airflow is on my furnace?

If you are looking at a furnace filter, find the arrow that indicates the proper air flow direction. That arrow must always face toward the furnace and away from the return duct that carries the air in need of heating or cooling.

Does the arrow point up or down on an air filter?

Air filters have arrows printed on the sides of them that show you which way they are supposed to be installed. These arrows should be pointing in the direction that air flows through your system, which is away from the supply ducts and (typically) toward the blower.

Which side of furnace filter should be dirty?

In all cases, the furnace filter should be dirty on the side that the air comes into the furnace from. If your air filters are dirty in some other fashion, it is likely your furnace is not working properly, or the filter was installed incorrectly.

Why does my furnace filter get dirty so quickly?

Leaky Duct Work According to ENERGY STAR, a typical house loses 20-30% of air through leaks in the duct work and poor duct connections. Leaving these untreated can not only kill your furnace filter quickly, but also result in higher energy bills.

When replacing pleated filters describe the correct orientation of the filter?

With most pleated filters, the direction of air flow is critical . The dirt should not be accumulating on the metal mesh side of the media; if that is happening, you put it in wrong. Switch it. The mesh side is the back side ; the air should flow through the front side first.

Can I change my own air filter?

You may not be ready to tackle car maintenance jobs like changing the oil or replacing spark plugs, but changing your vehicle’s engine air filter is an easy job that you can do. Doing this job yourself can result in big savings. Many quick lube shops charge up to $25 or more to change an air filter.

How much does it cost to change a furnace filter?

Although flat filter designs offer the most savings upfront, they need to be replaced more frequently and may cost you more in the long run. Replacing these filters can cost anywhere from $40 to $200 a year.

Do I need to change my furnace filter if it doesn’t look dirty?

If your filter isn’t dirty despite your air conditioning seeing regular use, then you should inspect the filter to make sure it is installed correctly. If it is, and you aren’t making any efforts to keep dust out of your house, call a professional to make sure nothing is wrong with your air conditioning.

What happens if furnace filter is dirty?

When your air filter is dirty and clogged, your furnace must work harder than usual in order to compensate for the increased blockage of airflow. Not only does this significantly increase your utility bills, but it also results in your furnace system overheating or shutting off too quickly.

Will a dirty filter Keep furnace from working?

1. Dirty furnace filters. Dirty air filters are often the culprit behind an inefficiently performing furnace. That’s because air filters trap dust, dirt and debris like hair, which over time can restrict or block vital airflow, overheating the heat exchanger and preventing your furnace from working as it should.

Where is furnace filter located?

The furnace filter is usually located inside of the blower compartment, where the return air enters the blower compartment. Most units have built-in furnace racks. The large metal furnace compartment contains a filter and blower.

How do I know what size filter to buy for my furnace?

Almost always, furnace filter sizes are printed on the side of the filter. They are read as Length x Width x Depth. When inspecting furnace filters, homeowners may find two different sets of sizes. First, there is the nominal size expressed in whole numbers.

Is no air filter better than a dirty one?

Running your air conditioner without a filter is worse than running it with a dirty one. Instead, get to the store as soon as possible for a replacement or call an HVAC professional for replacement. Without a filter, your air conditioner is at risk for severe and expensive problems.

How many filters are in a furnace?

Most furnaces will have a V shape filter system; the system will take 2 filters. The filters go up into the plenum in a V shape. Make sure that when you re-install the top door, it goes over the furnace frame so it engages the safety switch.