Question: What Happens If You Don’T Replace Your Furnace Filter?

Why does my furnace filter get dirty so fast?

When the thermostat’s fan setting is set to “ON” the indoor blower will run 24/7, constantly circulating air over the air filter.

So now the filter is constantly catching airborne contaminants, causing it to quickly get dirty.

Furthermore, your energy bills are higher because running a blower nonstop ain’t cheap..

Can a furnace filter catch fire?

When your furnace is working hard to pull air through, the dirty air filter could eventually get sucked back into the system. When this happens, air flow is compromised and you’re at serious risk of a fire starting at the furnace level.

How often should you change air filters in your house?

As a general rule, you’ll want to replace pleated air filters and furnace filters in your home every 90 days. The longer the filter is in place, the more dirt, dust and allergens are trapped clogging the filter and decreasing their efficiency.

How often should you change your furnace filter in the winter?

three monthsProfessionals, like our team at Airco Service, Inc. say that you should change your air filter at least every three months. During the winter, when you rely on your heating system more, you want to increase that frequency. During the winter, when the system is in constant use, change it out every month.

How often should you replace your furnace filter?

every 90 daysThe general rule is to change a furnace filter—usually located behind a return-air vent or in a slot on the furnace itself—at least once every 90 days.

How much does it cost to have furnace cleaned?

The price of duct cleaning services will depend on many factors, but the average price is around $375. However, the cost can range anywhere from $250 to $500 or more, depending on the company you choose and where you live.

How can I tell if my furnace filter needs changing?

How Can I Tell That My Furnace Filter Needs to Be Changed?Filter is a different color. … Energy bills are higher than usual. … Low air flow. … Rise in physical issues. … Headaches. … Allergies. … Carbon monoxide poisoning. … Forces HVAC systems to work harder.More items…•

Can not changing your furnace filter make you sick?

Making sure the filter is changed regularly in the furnace can help keep homes and loved ones safe. Not changing the furnace filter can be dangerous. Furnaces are very important, but if they aren’t maintained correctly they can become hazardous, and this can certainly be the case if the filter inside is old.

What happens if you don’t replace air filter?

When the air filter gets too dirty, it will get clogged and the engine won’t be able to suck up enough air to the combustion chamber. When this happens, the engine will use more gas and less air, which will result in poorer performance and a drop in fuel efficiency.

How long does a furnace filter last?

A three to four-inch filter can last for six to nine months. If you have a thick five to six-inch filter, it can last from nine to twelve months. By making sure that your filters are changed when they need to be, you can enjoy having a heating and cooling system that will work its best.

Are 4 inch furnace filters worth it?

You’ll change 4-inch filters a lot less than 1-inch filters. … That means they have more surface area to catch particles, making them last 3–5 times longer than 1-inch filters. Most HVAC technicians recommend changing 1-inch air filters every 30 days, while 4-inch filters can be changed every 3–6 months.

Is it bad to run your furnace without a filter?

The two main reasons you shouldn’t run a furnace without a filter are that your furnace could break down suddenly and that air will be filled with contaminants that are unsafe to breathe in. If your heater goes out in the middle of winter due to a clogged air filter, call the HVAC professionals at John C.

Can a dirty filter break a furnace?

A dirty furnace filter restricts airflow to the furnace, leading to higher energy spending, poor heating performance, and even a potential heating breakdown. … Your furnace may break down well before its expected lifespan and you’ll probably notice reduced heating in one or more areas of the house.

How long do air filters last?

60 daysFor basic 1″–3″ air filters, manufacturers typically tell you to replace them every 30–60 days. If you suffer from light to moderate allergies, you could install a better air filter or replace them even more regularly.

Is no air filter better than a dirty one?

Without a filter there to trap air pollutants, your home’s air quality will deteriorate. That’s because the same air contaminants will just circulate through your home. But what’s worse is that you’re likely bringing even more pollutants into your home on a daily basis.