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4 Inch Vs 1 Inch Furnace Filters


4 Inch Vs 1 Inch Furnace Filters. A 4 inch furnace filter will last a. You certainly don't want the return pulling any air or exhaust from the water heater.

Cardboard Disposable V/Form 4 inch Filters
Cardboard Disposable V/Form 4 inch Filters from rainbowfilters.com.au

This size isn’t as common as 1” or 4” filters, but they are available. You can ensure that a larger filter would work/fit by checking the actual size for the 5 filter you are considering. I also know how stats like that can be scewed.

So Another Question About A New Install.


Stores sell filters with those specific dimensions (i.e., 16x25x5) specially designed to fit. The reason you want to use the appropriately sized filter is straightforward: Furnace filters are available in thickness that range from to 1 inch to more than 4 inches.

The Best Thing To Do Is Upgrade To A 2 Inch Filter Or Even A 4 Inch Filter.


Many cabinets allow for either a 1 inch or a 2 inch filter. You certainly don't want the return pulling any air or exhaust from the water heater. A 4 pleat has a dramatically lower pressure drop and are good for about 6 months.

There Are Some Benefits And Some Disadvantages:


1 inch furnace filters, pressure drop and high merv. Just adding a 1 inch pleated filter may be detrimental to your system if it is border line already. A furnace filter is used to protect your furnace motor and a/c coil from getting dirty, nothing more.

Common Sense Tells Me That A 4 Filter Would Certainly Trap More Particles Than A 1 Filter, But I Have A Few Questions.


Naturally, the denser the filter, the more material the air has to pass through before it reaches the inside of the furnace. I have been told 4 captures 80% of particles vs. I also know how stats like that can be scewed.

So The 4 Inch Will Last Longer Between Changes.


The five inch filter would be 1/8 smaller in the 16 direction, not too bad, although. A 1 pleat is good for only 1 month. I was at a friend’s place on the weekend and noticed he’d purchased a case of four 16 x 25 x 4″ thick merv 8 furnace filters, and rose at the opportunity to ask him to cut one open and measure the length of the filter fabric.


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