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Started By
Message
Anybody order AC Filters online?
Posted on 6/26/23 at 6:36 pm
Posted on 6/26/23 at 6:36 pm
I know Amazon stocks them, but wondering if there is a better source. TIA
11
Posted on 6/26/23 at 7:04 pm to ItzMe1972
Discountfilters.com
Posted on 6/26/23 at 7:15 pm to ItzMe1972
Every now and then homedepots deal of the day. I order like a year or two worth and just stick them in the attic.
Posted on 6/26/23 at 7:31 pm to ItzMe1972
Check out https://filterbuy.com/
Posted on 6/26/23 at 7:34 pm to ItzMe1972
Filterbuy.con
Posted on 6/26/23 at 8:16 pm to lgtiger
Pretty good prices here guessing they are decent?
Posted on 6/26/23 at 8:22 pm to ItzMe1972
I’ve used the Nordic Pure filters from Amazon for a while. Very good sturdy construction and made in the USA. Best ones I’ve found yet
Posted on 6/27/23 at 9:25 am to RaginCajunz
quote:
I’ve used the Nordic Pure filters from Amazon for a while
this is the way. Amazon brand filters are also good and cheap. Don't overthink it. Just find your size and subscribe and save on amazon. same quality as HD/Lowes for half the cost
Posted on 6/27/23 at 9:30 am to ItzMe1972
We have Aprilaire filters on all 3 of our units. They would incredibly well and I change them once or twice a year.
Posted on 6/27/23 at 9:37 am to kengel2
quote:
Every now and then homedepots deal of the day. I order like a year or two worth and just stick them in the attic.
This is what I also do.
Posted on 6/27/23 at 9:55 am to bbvdd
quote:
We have Aprilaire filters on all 3 of our units. They would incredibly well and I change them once or twice a year.
When perusing professional HVAC forums like HVAC-Talk, Aprilaire filters are the ones most favored, considered the best, by techs but they don’t make a wide variety of sizes or thicknesses - in my case I’d have to change both my air return grills/plenums, to use them. Might be a project for down the road.
Main thing is if using 1 inch thick filters is to not use a highly restrictive, high MERV pleated filter as it restricts air flow and increase total external static pressure (TESP) which can shorten the of life of the unit/blower motor over time as it tries to overcome the resistance to air flow, also reduces air flow in CFM with PSC blower motors. In those cases better to use a low MERV filter and change it more frequently.
This post was edited on 6/27/23 at 11:43 am
Posted on 6/27/23 at 11:05 am to ItzMe1972
I rotate between discountfilters, filterbuy, and amazon. They all have sales at different times so I go with what's cheapest at the time I need to purchase.
Posted on 6/27/23 at 11:10 am to ItzMe1972
Yep. Have it set up on subscribe through Amazon. New filters arrive every 3 months
Posted on 6/27/23 at 12:28 pm to CrawDude
quote:
Main thing is if using 1 inch thick filters is to not use a highly restrictive, high MERV pleated filter as it restricts air flow and increase total external static pressure (TESP) which can shorten the of life of the unit/blower motor over time as it tries to overcome the resistance to air flow, also reduces air flow in CFM with PSC blower motors. In those cases better to use a low MERV filter and change it more frequently.
I have always heard this, but every hvac tech I've spoken to about it says that this is no longer the case.
Posted on 6/27/23 at 9:48 pm to ItzMe1972
I also use filterbuy. Set up the subscription and it’s one less thing i have to worry about remembering lol.
Posted on 6/28/23 at 8:19 am to GoldBlooded
This post has been very useful and I’d like to switch to ordering online.
quote:Looking at the dimensions for 24x24x1 filters and they measure 23.38"L x 23.38"W x 0.75"Th. Anyone find an issue with them not fitting tightly in the return opening? These are the only negative reviews I see on them.
filterbuy
Posted on 6/28/23 at 9:32 am to lsujro
quote:
I have always heard this, but every hvac tech I've spoken to about it says that this is no longer the case.
Perhaps they are referring to the fact “newer”, since 2020, furnaces or air handlers/fan coils use constant torque or variable EMC blower motors and not PSC motors. EMC motors will ramp up speed to in an attempt to maintain a constant air flow with a restrictive or restricted air filter - but it comes a increased energy cost and potentially shorter life of the blower motor. EMC motors are many times more expensive than PSC motors found on many/most “older” units, “old” being several + years.
The main function of the HVAC filter is to protect the HVAC equipment, motor/coil from becoming dirty, not improve IAQ for human health - that’s a secondary benefit if your system can handle a higher MERV filter.
If you want to devote 1/2 hour of your life, this Y/T video by a HVAC tech/instructor in FL, teaching a class to other HVAC techs, discusses filters, it’s a bit more complex topic than most realize.
What Air Filter is the Best
Another by a tech
What Filter Should I Use for My Air Conditionet
Posted on 6/28/23 at 10:10 am to CrawDude
So what’s the go to “cheaper” non-pleated filter to get?
Posted on 6/28/23 at 10:26 am to CrawDude
good links thanks. makes me want to add a 4" filter in my system and lost the return filters 
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