Score breakdown ×
Varies on the size of filter. My understanding is that 1" is every 1-3 months. Depends on the size of home, pets, and how much is collected from the returns. 4" is every 3 to 6 months.
Can you link out to those cheap filters?Bidjaan wrote: ↑ Varies on the size of filter. My understanding is that 1" is every 1-3 months. Depends on the size of home, pets, and how much is collected from the returns. 4" is every 3 to 6 months.
I have 1 inch filters, and change them monthly, but don't waste my money on expensive 3M filters that either don't offer additional benefit or cause my furnace to work harder. Purchase good quality Merv 6 or Merv 8 filters for a fraction of the cost, and change frequently. Better end result and still lower overall cost. My statement doesn't factor in any health conditions which may have special needs. My dad has 4" filters, and he changes them every 6 months which works perfect for his home.
Once a year I have never heard of.
I use the 1” and I get a box of 12-generic MERV 10 once a year and change the filter once per month. We have pets, enjoy the windows open, and keep our furnace fan running consistently to move the air around. We like the air quality this provides.Bidjaan wrote: ↑ Varies on the size of filter. My understanding is that 1" is every 1-3 months. Depends on the size of home, pets, and how much is collected from the returns. 4" is every 3 to 6 months.
I have 1 inch filters, and change them monthly, but don't waste my money on expensive 3M filters that either don't offer additional benefit or cause my furnace to work harder. Purchase good quality Merv 6 or Merv 8 filters for a fraction of the cost, and change frequently. Better end result and still lower overall cost. My statement doesn't factor in any health conditions which may have special needs. My dad has 4" filters, and he changes them every 6 months which works perfect for his home.
Once a year I have never heard of.
Looks like they ship to Alberta. Sick of paying so much for 3M and not happy with the cheapo generic from Home Depot.shopper-X wrote: ↑ I use the 1” and I get a box of 12-generic MERV 10 once a year and change the filter once per month. We have pets, enjoy the windows open, and keep our furnace fan running consistently to move the air around. We like the air quality this provides.
The 3M listed by OP are MERV 11 and generic MERV 11 are $79-shipped or $65-picked up at FurnaceFilters.ca.
$79/12 = $6.58-each
$65/12 = $5.42-each
$34/3 = $11.33-each
Not sure what secret sauce 3M adds that doubles the price.
Yes and yes.RyanfromYEG wrote: ↑ Question for all, the higher the MERV the faster it will clog up which means changing more often? Also higher the MERV the more the resistance.
3-6 months if using the 1" depending how dusty it gets
As a person who once purchased a lot of 3M products for a client: Why does 3M charge so much? Because the name means consistent repeatable quality. It doesn't mean the best necessarily, it just means you get the same thing every time you buy. As @Abhish3k mentioned, the OP filters always freeze his coils. Every time. There's value in that repeatability, assuming it's the product you want.shopper-X wrote: ↑ I use the 1” and I get a box of 12-generic MERV 10 once a year and change the filter once per month. We have pets, enjoy the windows open, and keep our furnace fan running consistently to move the air around. We like the air quality this provides.
The 3M listed by OP are MERV 11 and generic MERV 11 are $79-shipped or $65-picked up at FurnaceFilters.ca.
$79/12 = $6.58-each
$65/12 = $5.42-each
$34/3 = $11.33-each
Not sure what secret sauce 3M adds that doubles the price.
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