How long does a 4 inch thick furnace filter last?

How long does a 4 inch thick furnace filter last?

Filters that are 3 to 4 inches thick should be replaced every 6 to 9 months. Filters that are 5 to 6 inches thick should be replaced every 9 to 12 months.

Are 4 inch furnace filters worth it?

The 4-inch thick air filter has a definite advantage over the 1” filter in terms of longevity, airflow and maximum filtering potential. Thus, if it fits your furnace, then a 4-inch air filter is better than a 1-inch air filter in regards to improving air quality.

How long does a 4 filter last?

Rules of thumbs are 1 inch filters change at least every three months if not sooner, 2 inch filters 4 months, 4 inch filters can last 6 to 8 months and 5 inch filters can last as long as a year depending on the quality. 50% of your filter is plugged in if you can see dirt on it.

How often do you really need to change your furnace filter?

every 90 days
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.

How long does a 5 filter last?

5″ Furnace Filter: 9 – 12 Months.

How long are furnace filters good for?

Change Your Filters Regularly For example, a one inch furnace filter should be changed out every one to three months. 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.

Can I use a 4 inch filter instead of 1?

While a 4-inch-thick filter is more efficient than a 1-inch filter, the right size depends on your furnace. If you measure the filter slot, and it’s large enough to accommodate the thicker filter, then you can use it. However, if the slot is less than 4 inches wide, you’re stuck with using that thickness.

Do bigger furnace filters last longer?

The general rule for filter replacement is once every 3 to 6 months. Thicker filters don’t have to be changed as often, such as 6-inch filters, which can last between 9 to 12 months before they need to be replaced. For a loose frame of reference refer to this chart: 1″ Furnace Filter: 1 – 3 Months.

How long should furnace filters last?

How long does furnace filter last?

Is a thicker furnace filter better?

The Thicker, the Better Furnace filters can range anywhere from 1″to 5″ in thickness. In general, the thicker the furnace filter is the more efficiently your unit work and the longer it will last.

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