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forum thread Posted by SensiblePenguin377 • Jan 8, 2024
forum thread Posted by SensiblePenguin377 • Jan 8, 2024

3M Filtrete Air Filter MPR 1900 (MERV 13), 3 pk. $34 Various Sizes $33.98

$34

$43

20% off
BJs Wholesale
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https://www.bjs.com/product/filtr...0000191145
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Clip the $9 Coupon (limit 1)
Sizes:
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16x20x1
14x20x1


https://www.bjs.com/product/filtr...0000191145

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Jan 8, 2024
1,227 Posts
Joined Nov 2011
Jan 8, 2024
Dreamliner330
Jan 8, 2024
1,227 Posts
This is a decent deal but be certain your furnace can handle them, most cannot…especially if you have 1" filters.

If you do some research you'll find this sentiment: A furnace filters job is to protect the furnace, not filter the air.

What happens when you use these high rating filters, especially if you have 1" filters, is that they clog super quickly and starve the furnace for air. Leading to possible fan burnout and whistling from the furnace trying to suck in air.

Best bet is to get the lower filters (I have 1" and stick to one level above fiberglass) and change them often.
Jan 9, 2024
6 Posts
Joined Jun 2013
Jan 9, 2024
nchoi6
Jan 9, 2024
6 Posts
Quote from Dreamliner330 :
This is a decent deal but be certain your furnace can handle them, most cannot…especially if you have 1" filters.

If you do some research you'll find this sentiment: A furnace filters job is to protect the furnace, not filter the air.

What happens when you use these high rating filters, especially if you have 1" filters, is that they clog super quickly and starve the furnace for air. Leading to possible fan burnout and whistling from the furnace trying to suck in air.

Best bet is to get the lower filters (I have 1" and stick to one level above fiberglass) and change them often.
My assessment is the same. These could overloading the furnace blower leading to an early failure.
Jan 9, 2024
962 Posts
Joined Dec 2008
Jan 9, 2024
eurostylin
Jan 9, 2024
962 Posts
1" merv 13 filters? lol. I see many replacement blowers in the near future, unless you're swapping them out once a day.

I bet the back pressure on a clean 1" merv13 has to be huge when it's new as well.

I wouldn't even think of using merv 13 on my 4" filter housings.

This is a killer deal for those who love static pressure.
Jan 9, 2024
292 Posts
Joined Sep 2008
Jan 9, 2024
Neilio517
Jan 9, 2024
292 Posts
Quote from eurostylin :
1" merv 13 filters? lol. I see many replacement blowers in the near future, unless you're swapping them out once a day.

I bet the back pressure on a clean 1" merv13 has to be huge when it's new as well.

I wouldn't even think of using merv 13 on my 4" filter housings.

This is a killer deal for those who love static pressure.
Explain please
Jan 10, 2024
962 Posts
Joined Dec 2008
Jan 10, 2024
eurostylin
Jan 10, 2024
962 Posts
Quote from Neilio517 :
Explain please
In order for your house air to circle properly, and in order for your fan to last, you need to weigh the restriction of high merv filters vs duct pressure in your system. Pleated 1" filters are normally a huge no-no.

The cost to move air through a merv 13 can be upwards of 300% more than running it through a merv 7 with pretty much zero difference in the air quality.

https://www.youtube.com/watch?v=Kl4t6P36g7Q
Sep 5, 2024
24 Posts
Joined May 2010
Sep 5, 2024
940
Sep 5, 2024
24 Posts
https://www.youtube.com/watch?v=RkjRKIRva58

This review of the static pressure of this 3M 1900 was pretty good according to this test from The Farm Project. It actually scored better than some of the lower MERV rated filters.

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