What is the longest lasting furnace filter?

How long do furnace filters really last?

How Often Do I Need to Replace It? The basic consensus among HVAC professionals is that you should replace your furnace filter every 90 days — or every three months. However, that depends on the filter’s thickness. Thicker filters have more room to collect dirt and dust, so they don’t have to be changed as often.

What is a permanent furnace filter?

Most HVAC system manufacturers recommend installing a new disposable filter monthly during the air conditioning season and at least every other month when the furnace is running. Permanent filters incorporate a washable filter media that often lasts for up to five years.

How can I make my furnace filter last longer?

Change the Furnace Filter

Extending the life of your furnace starts with changing the filter regularly. Instead of waiting a full 90 days before changing the filter, inspect it every 45 days to see if it’s dirty. This is important for making the furnace last longer.

How long do MERV 12 filters last?

Your furnace’s owner’s manual will specify the best MERV rating for your furnace, and in general, filters with a MERV rating of 6 through 9 should be changed every 90 days, while those with a MERV rating of 10 through 12 should be changed every 60 days.

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How often should you change 1 inch furnace filter?

In general, this is how often changing furnace filters needs to be done: For 1- to 2-inch filters, replace them every 1 to 3 months. For 3- to 4-inch filters, replace them every 6 to 9 months. For 5- to 6-inch filters, replace them every 9 to 12 months.

Do more expensive air filters work better?

Expensive air filters give you more surface area to filter particulate matter. … All dimensions being equal, a filter with a higher MERV rating and more pleats per inch will have the same or better air flow than the same filter with a lower MERV rating and fewer pleats.

How long do electrostatic filters last?

Instead of replacing it every three months, you just wash it out, let it dry, and replace it. These guys run anywhere between $30 and $80 and typically last around three years, although some can last as long as five.

Can you clean and reuse furnace filters?

If you run a disposable filter in your furnace, it needs to be changed every 2 to 3 months, depending on the size and type. Permanent furnace filters, on the other hand, are designed to be cleaned and reused, so it’s simply a matter of checking your filter occasionally to make sure it’s not too dirty.

Why does my furnace air filter get dirty so quickly?

When your A/C is on the thermostat fan will constantly be running causing air too run over the air filter continuously and causing it to get dirty more quickly. … You may have a leak in your air ducts – Leaky air ducts can also cause your filter to clog up and especially if it is near your AC unit.

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Do you change furnace filters in summer?

The same HVAC system that moves air throughout your home during the winter, will be moving the air throughout your home in the summer. … Frequent filter changes will help to increase the lifespan of your entire HVAC system. So, yes, your furnace filter needs to be changed even in the summer.