The filter is clean because the old one was so bad it was being bypassed and destroyed the coil. You didn’t even pull the coils cover you are just making shint up based on half assed information. You are part of the problem. I wish you the best of luck.
55metalmonkey that is not the coil cover that is the coil door. The cover is the little a shaped piece of metal that shows the inner portion of the coil. I wish you the best of luck in your vocabulary. The door needs to be removed( he couldn’t get it off because of the fuel lines) and coil cover removed for a complete inspection.
Commercial system design engineer here, and I completely agree. Most small gas furnaces like this don't have a lot of static pressure capability from the fan. No more than MERV 8 filters should be installed for these. Even MERV 6 "rockstopper" as we call them are fine for non-dusty climates. Bonus tip: Don't ever use carpet freshening powder. It's bad for your vacuum and bad for your air filters!
One of my relatives was complaining about air flow and was using one of these restrictive filters in her old HVAC system. She only had one small filter intake in her two story house. It has been my experience that the majority of HVAC systems are not designed for these restrictive filters but they remain very popular. The big box stores really push these expensive filters and consumers don't realize which is the best filter for their system.
My man, I had the same exact service call this week. Brand new home owner thinking he's doing good by spending a ton of money on 3M filters. Tripping high limit. Always, always tell my customers to go cheap. Great video!!!
I like some of the commercial equipment I work on. It has pressure test ports on each side of the filter to attach a differential manometer and a pair of pitot tubes to check airflow too. Nothing needs opened to measure the airflow and filter restriction. Normal airflow is just under 1/2 inch WC and HEPA filter is about 3 inches water column.
1" pleated filters are good for up to around 900-1000 cfm, beyond that the pressure drop is way too high at 16x25x1. Allergen 3Ms are even worse when they plug up. Fiberglass really sucks though, so the solution is to install a merv 8 media filter on larger systems.
Just had a recent call very similar to this one. White buildup on the filter choking air flow. Wasn't there 5 minutes. If a new tech hasn't experienced this yet, they will sooner than later. Thanks for the video.
I've found out that those filters look white like that for a few reasons. It's plugged with shit from the humidifier, or they use that sprinkle powder carpet cleaner. I can't count how many times I skipped the filter because it looked white like that only to find it was plugged solid with white powder....
It comes down to the equipment (furnace or air handler). The manual tells you what type of filter is good for the furnace. Filters & furnaces are matched to work together, you can’t just throw any type of filter. High efficiency filters cause more pressure drop & the fan motor should be designed specifically to work with those filters.
So I just read my entire 120 page furnace manual over the last 6 hours and it barely makes any mention of the filters at all. They really should include such info. Was a Rheem Prestige Series RV96 if you want to read the manual yourself to see.
I just installed a 3M filter (16X25X1) in my furnace last week and now find out how bad they are and from other sources too. If they are really that bad, then what filter would be the best filter to use?? I can take that one out and put in one that I don't hear so many horror stories about.
I've always had problems with those filters. 3m has always been especially bad. What was it 2 years ago when they changed the style of their filter. Majority of our calls during the polar vortex were pleated filters and nest thermostat issues.
That was not a 3M filter that was taken out. It was an Arm and Hammer filter. They preload those with baking soda....white powder. That is what caused the blockage.
They need to change their air filter every once in a while. I have to change mine at least vacuum it out with dogs running around once a week. I seen those charcoal ones with the mini charcoal bits glued to the inside of the filter. I really enjoy spending a weekend ripping apart my furnace to vacuum those micro black bits out of the secondary exchanger.
The water pads are a paper material and even with calicum in the water isn't enough to cause it to even come close to clogging it. Simple the owner doesn't do maintenance or use the right filter
Thats what it is, people put tap water in portable humidifiers, it says on directions use distilled water. When water evaporates it will cause the white sediment in water to suck into return back to filter. This is a callback, title should be portable humidifiers kill furnaces. Once you run into it once, it want throw you off. 5 calls just this week on this issue.
Huh. I've been running 3M filters rated at MERV 11 for almost 10 years in my place, and haven't had a problem. I've replaced them religiously every three months, don't have any pets, and my house stays pretty clean. I wonder if that makes a difference? Edit: I do give them the "daylight" check every time I replace them, and they've never seemed plugged, I can still see a lot of light through them. Maybe I should just save myself the money and get the cheap ones.
Exactly! The one with the purple frame is the worst. I call it the Purple Devil. I don't know what filtrete is doing with their filters. That's only something that I've seen occurring over the last couple of years. It's very strange. Some of the filters almost feel like paper mache.
I use a Merv 8 and change it every 30 days . Hard to come by as all the store only carry the higher ratings so I stock up on them when I see them on the store shelves . Every body I know with a gas furnace use the highest Merv rated filter they can find , they follow the science not common sense . Thanks for the Video Mi Guy !
I tell customers who don't have an air cleaner: cheap filters more often. Unless they have filter grills. If you want higher merv, spend 500 on an air cleaner, cheaper than a motor
Just ran into the same exact thing,guy called and said that the sheetrockers were complaining that the new furnace wasn't keeping the house warm enough!
Those SOB's don't care about dust, they came in sanded down drywall without caring about the furnace, or any fixtures, tools, or anything else laying around. When they come in, there's gonna be mud and dust on every inch of everything on the job site. Also mental note 38483892 don't ever let them use your scissor lift because when you get it back you have a cluster full of nails, pieces of very sharp sections of metal corner bead, mud caked on everything, dust all over, and boxes just littered all over it sitting outside in the rain with a dead battery. No no no, dont ever leave anything laying around because they complain about everything. The placement of studs, electrical boxes, plumbing extensions, windows, doors, everything they had to cut around. You could put one of those bastards in a perfectly 8' centered on perfect box and they'd have to bitch about something.
The cheap fiberglass filters are about as bad if not worse they will eventually let everything through maybe stop some pet hair & lint, dust will pass through it and clog the coil or the intake of the furnace
Ive used a merv11 or the 1300 series for over 15 years and have never had an issue with my ac or furnace. Still has all original parts. Change it before it gets extremely dirty and you’ll be fine.
I total agree with you, I been used the merv 11 ten years straight and not one problem. System get s checked once a year. Filter get changed every six months. 20x20x5. In the summer if i didn't turn the temp up. You could hang meat and me. No air flow problems.
Always check the filter first. Those filters will cause the blower to burn out faster. People are better off getting a few clean air machines. The Furnace was never made to be an air cleaner. I use the lowest restriction filter.
Have a Carrier infinity system, use Honeywell Merv12 16x25 filters as designed with the Honeywell compartment. Never have an issue. Change em on time and NO CARPET POWDER !!!
I've warned people about the WC pressure drop caused by these filters. Most small systems like this will tolerate up to .5" and with these filters NEW your hitting around .2". They're 'OK' if you swap them every 30 days but who ever does? I use the middle of the road 6-8 or the cheap glass ones with a tack spray. Talked to many friends that use the allergen filters and they keep them in 6 months or until they notice a problem.
I agree...I hate those filters. Have you seen the CPS bluetooth cfm meeter? That thing is super easy to use and gives some what accurate cfm reading. If I can use it then I know anyone can use it. Thanks again for the clip.
Best Air contractor filters are one of the better filters I've used, we had low airflow and a whistling noise coming from out furnace, the economy 20x20x1 filters that don't have any extra bracing and use the thinnest of cardboard can't handle much suction and need replaced every 90 days, I replaced a 20x20x1 economy filter with a 20x20x2 Best Air contractor filter and the low airflow and howling noise have yet to come back even after 180 days, the little bit of extra cost is worth it, saves you an angry callback and it's still cheap enough that most cheapskates won't question whether it's the cheapest option
Only use Merv 13 if you have allergies or prone to respiratory infections, and change once a month. Personally as an HVAC tech of 10 years I recommend everyone replace filters once a month. I found from experience, over time changing the filter only when it’s pretty dirty causes the blower motor to wear out well before it should.
Make a simple U-tube manometer to check the pressure on the intake side of the blower. Decide how much negative pressure is acceptable for the system and install a filter that will not clog up and exceed that negative pressure
my hvac system is 19 years old never had problem always use 3M filtrete filters change every 6 months think in my opinoin i would not want dirt and dust going threw my a/c coil and duct work.
@@jeromesosnoski7001 I've seen them cut the airflow from 3 tons down to a ton and half. That's a guess on the seer loss, it could be worse. But usually it will start freezing up beyond that.. I wouldn't run anything more than 8 unless you have multiple filter grills. Or maybe a 20x30 on a 2 ton. If you want good filtering in a house HVAC system you need to run them four to six inch thick ones that's made especially for that. If you spread out the material in one of those things it's about 24 ft long. So much more surface area
The ceramic coating on the humidifier pads does get everywhere, even on the OEM #35 Lennox ones. Annoying as frig! Also looked like his flames started dancing a lot when the blower came on.
So it's the fault of a filter that is filtering and not that the filter needed to be changed? I use those filters and my air flow is fine, but then I can change my filter when needed.
i used one back in the summer and it might have damaged our 94 AC but i look all over for reg chap filter every place said they could sale them due to Covid-19 but 2 week later i found some 99cent ones at local hardware store put that in . but even that only had 3M i ask them why did not have cheap ones before Governor allowed to them sale the cheap ones again . from walmart to home depot to local ones did not have cheap one for priod of time last Summer i found that very strange . but best to have something then nothing at all . i never had issue finding the cheap one . i mean 5$ plus is scam to me . they should outlaw them mine is 20X20X1
The cheaper 3m filters don't even put the arrows in the right direction, so people install them with the structure facing the wrong direction, blower sucks it in, also destroying motors, even blower wheels
A common issue i come across is people who use portable humidifiers. The water here is so hard and all those minerals get into the air a clog up the pores and make the filters become crusty and solid and unable to flow
I’ve told customers for years to use nothing more than MERV 8 filters. I tell people that if they have allergy concerns they will be better off in the long run with an air cleaner and a U V light. 🇨🇦
I recently purchased a 6 pack of merv 5. I may pull out the fairly new Merv 11 I have in the furnace right now and consider it a loss and put in the merv 5.
Must have been doing something inside like sheetrock work or something or like people saying humidifiers. I get bulk air filters online but not 3m just pleated but not anything crazy
I had the same question. I’m using a 4” pleated MERV 10 in an old electronic air cleaner. When the filter gets dirty, it will trip the high limit and cause the furnace to cycle but a fresh 4” filter gives me no error codes and no cycling issues.
I see that Pre-2004 water heater (looks like an older AO Smith) and I pity the guy who has to change it out. The sediment likely inside and that crappy plastic drain valve. UGH
When I have low air flow the first thing I check is the filter. I never run filters higher than MERV 5 or below, even 3 or 4. Hi MERV filters will cause your furnace to overheat and damage it A filter is cheaper than a new furnace!!!
If you can’t see light through the filter then it’s to thick and is killing your blower motor and drawing more amps then it needs .. 15 years as a hvac tech ...any company that try’s to sell you a media filter is a snake
On psc motor if the filter is plugged your amps go down, not up. Your heat exchanger temp goes up. Result is open limit and your are badly stressing the heat exchangers, but your motor is not over amped. You are reducing the air load on the fan thus the motor is not working hard at all, but the net result is robbing air across the heat exchanger.
That is just terrible advice. I only use MERV 13 filters in my 13 year old Goodman condensing furnace (6400 burner hours in last 8 years since I began measuring) and I get acceptable 45-50 degree rise on med-high blower speed. Absolutely no problems. Increase blower speed if necessary to limit rise. High density MERV 13 filters trap 89% of Covid 19 on first pass as part of cleaning the air better and reduce electrical demand on the blower whenever air flow is reduced. There is absolutely no reason to replace them until heating temperature rise becomes excessive. Contrary advice is just sales hype for people who don't/can't monitor performance. Air flow requirements may be greater with AC, but that's why there are higher speeds available and proper furnace installation requires adequate duct work - not elimination of quality filtration.
nothing wrong with 3m filters if you change them reg. from the get go. Once furnace gets clogged up you have to do a very deep clean to get back to good flow. I don't think your methods are valid.
Why wasn't this checked 1st? I have seen filters plugged so bad that they were collapsed inward from the negative air pressure. Most idiots are lucky to change the filter once a year and sometimes never. Poor maintenance as usual by the homeowner.
If you listen to his explanation, he states he checked it first but it didn't appear dirty. It was filled with white dust that was the same color. Until he ran his finger over it he couldn't tell.
I've had this conversation so. many. times. with customers. Stop using these filters. They aren't helping with air quality. They are killing the life expectancy on your furnace.
Maybe a better title would be "Lack of Maintenance Will Kill Your Furnace" I have used the Filtrete 1200 Allergen Reduction Filters since I built my house in 2008. Not one problem with the furnace in 13 years. Don't believe everything you see on the interweb.
Wait you don’t check a filter first whenever you’re doing a service call, instead you like to crawl around looking at ductwork and gas lines fiddling with a fan and checking airflow.
I bet you anything they’re running those stand alone humidifiers in their bedrooms. That causes that white film on those filters, we see it all the time
Need to install TWO ! 20” X 30” X 5” deep (just example) to replace that single 1” filter to step up to MERV 11, MERV 13 and make it big enough in surface face area in case they go crazy and install MERV 16. Get that surface face air velocity down around 200 per square foot of high Merv surface medium face velocity. 400 face velocity is pushing the edge of laboratory conditions only with clean air as soon as you collect even a little amount of dust you go right into restriction. Always over engineer it more surface face velocity on MERV filters is better. But they will cry like a little baby when you give them the price to make up the custom sheet metal cabin and the price of the filters. “ but I only want to spend $20 for a Home Depot filter” with very few pleats so it gets restricted faster and has less surface area face
![YoungBoy Never Broke Again - Missing Everything [Official Video]](http://i.ytimg.com/vi/dTYeMZGzOzw/mqdefault.jpg)
The filter is clean because the old one was so bad it was being bypassed and destroyed the coil. You didn’t even pull the coils cover you are just making shint up based on half assed information. You are part of the problem. I wish you the best of luck.
...did you watch the video?
Russell Speer yes. What is your point.
@@eprofessio He pulled the coil door at 3:00 and showed the coil
55metalmonkey that is not the coil cover that is the coil door. The cover is the little a shaped piece of metal that shows the inner portion of the coil. I wish you the best of luck in your vocabulary. The door needs to be removed( he couldn’t get it off because of the fuel lines) and coil cover removed for a complete inspection.
@@eprofessio Its a down draft furnace, if you suspect the coil is clogged you would inspect the side where the air enters.... not where it exits.
Commercial system design engineer here, and I completely agree. Most small gas furnaces like this don't have a lot of static pressure capability from the fan. No more than MERV 8 filters should be installed for these. Even MERV 6 "rockstopper" as we call them are fine for non-dusty climates. Bonus tip: Don't ever use carpet freshening powder. It's bad for your vacuum and bad for your air filters!
Your right . I just pulled my filter out after 1 month in my new Goodman furnace . now I have twice the airflow with the fiberglass one.
One of my relatives was complaining about air flow and was using one of these restrictive filters in her old HVAC system. She only had one small filter intake in her two story house. It has been my experience that the majority of HVAC systems are not designed for these restrictive filters but they remain very popular. The big box stores really push these expensive filters and consumers don't realize which is the best filter for their system.
They need to be sued for it
My man, I had the same exact service call this week. Brand new home owner thinking he's doing good by spending a ton of money on 3M filters. Tripping high limit. Always, always tell my customers to go cheap. Great video!!!
I like some of the commercial equipment I work on. It has pressure test ports on each side of the filter to attach a differential manometer and a pair of pitot tubes to check airflow too. Nothing needs opened to measure the airflow and filter restriction. Normal airflow is just under 1/2 inch WC and HEPA filter is about 3 inches water column.
1" pleated filters are good for up to around 900-1000 cfm, beyond that the pressure drop is way too high at 16x25x1. Allergen 3Ms are even worse when they plug up.
Fiberglass really sucks though, so the solution is to install a merv 8 media filter on larger systems.
Joe taught me about this several years ago when we worked together. He's the man.
Just had a recent call very similar to this one. White buildup on the filter choking air flow. Wasn't there 5 minutes. If a new tech hasn't experienced this yet, they will sooner than later. Thanks for the video.
i have used filtrete filters for years i have never had a problem with air flow over heating or freeze ups with these filters
I've found out that those filters look white like that for a few reasons. It's plugged with shit from the humidifier, or they use that sprinkle powder carpet cleaner. I can't count how many times I skipped the filter because it looked white like that only to find it was plugged solid with white powder....
It comes down to the equipment (furnace or air handler). The manual tells you what type of filter is good for the furnace. Filters & furnaces are matched to work together, you can’t just throw any type of filter. High efficiency filters cause more pressure drop & the fan motor should be designed specifically to work with those filters.
Ductwork that isn't sized correctly had a lot to do with it also
So I just read my entire 120 page furnace manual over the last 6 hours and it barely makes any mention of the filters at all. They really should include such info. Was a Rheem Prestige Series RV96 if you want to read the manual yourself to see.
I just installed a 3M filter (16X25X1) in my furnace last week and now find out how bad they are and from other sources too. If they are really that bad, then what filter would be the best filter to use?? I can take that one out and put in one that I don't hear so many horror stories about.
I've always had problems with those filters. 3m has always been especially bad. What was it 2 years ago when they changed the style of their filter. Majority of our calls during the polar vortex were pleated filters and nest thermostat issues.
That was not a 3M filter that was taken out. It was an Arm and Hammer filter. They preload those with baking soda....white powder. That is what caused the blockage.
They need to change their air filter every once in a while. I have to change mine at least vacuum it out with dogs running around once a week. I seen those charcoal ones with the mini charcoal bits glued to the inside of the filter. I really enjoy spending a weekend ripping apart my furnace to vacuum those micro black bits out of the secondary exchanger.
They probably had a room humidifier running. Puts a white sediment from the water in air and plugs up filters fast.
The water pads are a paper material and even with calicum in the water isn't enough to cause it to even come close to clogging it. Simple the owner doesn't do maintenance or use the right filter
Thats what it is, people put tap water in portable humidifiers, it says on directions use distilled water. When water evaporates it will cause the white sediment in water to suck into return back to filter. This is a callback, title should be portable humidifiers kill furnaces. Once you run into it once, it want throw you off. 5 calls just this week on this issue.
Huh. I've been running 3M filters rated at MERV 11 for almost 10 years in my place, and haven't had a problem. I've replaced them religiously every three months, don't have any pets, and my house stays pretty clean. I wonder if that makes a difference?
Edit: I do give them the "daylight" check every time I replace them, and they've never seemed plugged, I can still see a lot of light through them. Maybe I should just save myself the money and get the cheap ones.
My HVAC company comes twice a year per service contract. They recommend and install the cheap ones for exactly this reason.
That's a very least it cuts your efficiency bad on air conditioning
Exactly! The one with the purple frame is the worst. I call it the Purple Devil. I don't know what filtrete is doing with their filters. That's only something that I've seen occurring over the last couple of years. It's very strange. Some of the filters almost feel like paper mache.
I use a Merv 8 and change it every 30 days . Hard to come by as all the store only carry the higher ratings so I stock up on them when I see them on the store shelves . Every body I know with a gas furnace use the highest Merv rated filter they can find , they follow the science not common sense . Thanks for the Video Mi Guy !
I learned something new here today. Thank you! 👍
Those filters are the bane of my existence. Already had countless calls for those in a few months
Yea and people get pussed I still charge them a service call for changing their filters.
Like wisdom teeth for dentists
I tell customers who don't have an air cleaner: cheap filters more often. Unless they have filter grills. If you want higher merv, spend 500 on an air cleaner, cheaper than a motor
How do you feel about 5" filter cabinets with a MERV 11 or MERV 13 filter? Much more surface area than a restrictive 1" filter.
Yes, that would be right.
Just ran into the same exact thing,guy called and said that the sheetrockers were complaining that the new furnace wasn't keeping the house warm enough!
Those SOB's don't care about dust, they came in sanded down drywall without caring about the furnace, or any fixtures, tools, or anything else laying around. When they come in, there's gonna be mud and dust on every inch of everything on the job site. Also mental note 38483892 don't ever let them use your scissor lift because when you get it back you have a cluster full of nails, pieces of very sharp sections of metal corner bead, mud caked on everything, dust all over, and boxes just littered all over it sitting outside in the rain with a dead battery. No no no, dont ever leave anything laying around because they complain about everything. The placement of studs, electrical boxes, plumbing extensions, windows, doors, everything they had to cut around. You could put one of those bastards in a perfectly 8' centered on perfect box and they'd have to bitch about something.
Even in the Installation Guide on our new (2020) American Standard Furnace it states to only use High Flow Filters.
The cheap fiberglass filters are about as bad if not worse they will eventually let everything through maybe stop some pet hair & lint, dust will pass through it and clog the coil or the intake of the furnace
Ive used a merv11 or the 1300 series for over 15 years and have never had an issue with my ac or furnace. Still has all original parts. Change it before it gets extremely dirty and you’ll be fine.
I total agree with you, I been used the merv 11 ten years straight and not one problem. System get s checked once a year. Filter get changed every six months. 20x20x5. In the summer if i didn't turn the temp up. You could hang meat and me. No air flow problems.
Always check the filter first. Those filters will cause the blower to burn out faster. People are better off getting a few clean air machines. The Furnace was never made to be an air cleaner. I use the lowest restriction filter.
Good filter advice. "those filters are not for you, but for the furnace."
I used 3m ones that say about smoke cause of when my dad smoked in the house and they worked great
Have a Carrier infinity system, use Honeywell Merv12 16x25 filters as designed with the Honeywell compartment. Never have an issue. Change em on time and NO CARPET POWDER !!!
I've warned people about the WC pressure drop caused by these filters. Most small systems like this will tolerate up to .5" and with these filters NEW your hitting around .2". They're 'OK' if you swap them every 30 days but who ever does? I use the middle of the road 6-8 or the cheap glass ones with a tack spray.
Talked to many friends that use the allergen filters and they keep them in 6 months or until they notice a problem.
I agree...I hate those filters. Have you seen the CPS bluetooth cfm meeter? That thing is super easy to use and gives some what accurate cfm reading. If I can use it then I know anyone can use it. Thanks again for the clip.
Ive been saying that for years. Had a customer that insisted on the filtrete filter. Guess who put a new heat exchanger in this year?
Best Air contractor filters are one of the better filters I've used, we had low airflow and a whistling noise coming from out furnace, the economy 20x20x1 filters that don't have any extra bracing and use the thinnest of cardboard can't handle much suction and need replaced every 90 days, I replaced a 20x20x1 economy filter with a 20x20x2 Best Air contractor filter and the low airflow and howling noise have yet to come back even after 180 days, the little bit of extra cost is worth it, saves you an angry callback and it's still cheap enough that most cheapskates won't question whether it's the cheapest option
Only use Merv 13 if you have allergies or prone to respiratory infections, and change once a month. Personally as an HVAC tech of 10 years I recommend everyone replace filters once a month. I found from experience, over time changing the filter only when it’s pretty dirty causes the blower motor to wear out well before it should.
Make a simple U-tube manometer to check the pressure on the intake side of the blower. Decide how much negative pressure is acceptable for the system and install a filter that will not clog up and exceed that negative pressure
I spend so much time telling people thanks for the video
my hvac system is 19 years old never had problem always use 3M filtrete filters change every 6 months think in my opinoin i would not want dirt and dust going threw my a/c coil and duct work.
You cut the efficiency by at least 6 seer.
@@Bryan-Hensley only using merv 11 anything above merv 13 will reduce seer by that much
@@jeromesosnoski7001 I've seen them cut the airflow from 3 tons down to a ton and half. That's a guess on the seer loss, it could be worse. But usually it will start freezing up beyond that.. I wouldn't run anything more than 8 unless you have multiple filter grills. Or maybe a 20x30 on a 2 ton. If you want good filtering in a house HVAC system you need to run them four to six inch thick ones that's made especially for that. If you spread out the material in one of those things it's about 24 ft long. So much more surface area
The ceramic coating on the humidifier pads does get everywhere, even on the OEM #35 Lennox ones. Annoying as frig! Also looked like his flames started dancing a lot when the blower came on.
So it's the fault of a filter that is filtering and not that the filter needed to be changed? I use those filters and my air flow is fine, but then I can change my filter when needed.
i used one back in the summer and it might have damaged our 94 AC but i look all over for reg chap filter every place said they could sale them due to Covid-19 but 2 week later i found some 99cent ones at local hardware store put that in . but even that only had 3M i ask them why did not have cheap ones before Governor allowed to them sale the cheap ones again . from walmart to home depot to local ones did not have cheap one for priod of time last Summer i found that very strange . but best to have something then nothing at all . i never had issue finding the cheap one . i mean 5$ plus is scam to me . they should outlaw them mine is 20X20X1
The cheaper 3m filters don't even put the arrows in the right direction, so people install them with the structure facing the wrong direction, blower sucks it in, also destroying motors, even blower wheels
A common issue i come across is people who use portable humidifiers. The water here is so hard and all those minerals get into the air a clog up the pores and make the filters become crusty and solid and unable to flow
Good rant
I supply AAF merv 8 pleated and no problem
Wow good advice cause I've been using them allergen filters for years
So if those are bad, what about Nordic Pure 20x20x5 MERV 12?
Unit came with a HEALTHY CLIMATE MERV 11
I’ve told customers for years to use nothing more than MERV 8 filters. I tell people that if they have allergy concerns they will be better off in the long run with an air cleaner and a U V light. 🇨🇦
3m filters will definitely kill a Carrier furnace
10yr old furance all I have ever used was 3m no issues.
Hey! Stop giving us the finger! haha
Only pleated filters I recommend are CAMFIL!
I own a heating and air co. Been telling customers not use filtretes for years
I switched to MERV 5 a couple years ago and both my heating and cooling bills went down.
I recently purchased a 6 pack of merv 5. I may pull out the fairly new Merv 11 I have in the furnace right now and consider it a loss and put in the merv 5.
i've seen ultrasonic humidifiers will do that to filters
Must have been doing something inside like sheetrock work or something or like people saying humidifiers. I get bulk air filters online but not 3m just pleated but not anything crazy
Is a higher MERV filter okay to use if the filter size is thicker (16x25x5)?
I had the same question. I’m using a 4” pleated MERV 10 in an old electronic air cleaner. When the filter gets dirty, it will trip the high limit and cause the furnace to cycle but a fresh 4” filter gives me no error codes and no cycling issues.
I see that Pre-2004 water heater (looks like an older AO Smith) and I pity the guy who has to change it out. The sediment likely inside and that crappy plastic drain valve. UGH
Those finely pleated ones aren’t filters. They are airflow restrictions.
Those filters are great for selling new furnaces . Pay now and more later.
They keep the coil clean and kill the furnace all at the same time. Lol.
When I have low air flow the first thing I check is the filter. I never run filters higher than MERV 5 or below, even 3 or 4. Hi MERV filters will cause your furnace to overheat and damage it A filter is cheaper than a new furnace!!!
I'm not a doctor, but an hour into the service and then you check the air filter. ?
Merv 8 and what change out interval would you recommend?
30 days during high use season unless you leave system blower running constantly then more often
So true good job i make bank on those calls thanks to home depot and lowes and stupid people
Yes they can.
If you can’t see light through the filter then it’s to thick and is killing your blower motor and drawing more amps then it needs .. 15 years as a hvac tech ...any company that try’s to sell you a media filter is a snake
On psc motor if the filter is plugged your amps go down, not up. Your heat exchanger temp goes up. Result is open limit and your are badly stressing the heat exchangers, but your motor is not over amped. You are reducing the air load on the fan thus the motor is not working hard at all, but the net result is robbing air across the heat exchanger.
First ad was for filtrete filters
good advise. thanks.
That is just terrible advice. I only use MERV 13 filters in my 13 year old Goodman condensing furnace (6400 burner hours in last 8 years since I began measuring) and I get acceptable 45-50 degree rise on med-high blower speed. Absolutely no problems. Increase blower speed if necessary to limit rise. High density MERV 13 filters trap 89% of Covid 19 on first pass as part of cleaning the air better and reduce electrical demand on the blower whenever air flow is reduced. There is absolutely no reason to replace them until heating temperature rise becomes excessive. Contrary advice is just sales hype for people who don't/can't monitor performance. Air flow requirements may be greater with AC, but that's why there are higher speeds available and proper furnace installation requires adequate duct work - not elimination of quality filtration.
nothing wrong with 3m filters if you change them reg. from the get go. Once furnace gets clogged up you have to do a very deep clean to get back to good flow. I don't think your methods are valid.
#Mi Heating Guy What brand and type of air filter is good to use
Merv 8 or less
I've taken those filters out thinking they were new because it was white but I couldn't see through it. They suck
Why wasn't this checked 1st? I have seen filters plugged so bad that they were collapsed inward from the negative air pressure. Most idiots are lucky to change the filter once a year and sometimes never. Poor maintenance as usual by the homeowner.
If you listen to his explanation, he states he checked it first but it didn't appear dirty. It was filled with white dust that was the same color. Until he ran his finger over it he couldn't tell.
I hope that's your finger 9:30.
Thick filters will end up tripping the limit switches
I've had this conversation so. many. times. with customers. Stop using these filters. They aren't helping with air quality. They are killing the life expectancy on your furnace.
Also I changed it every three months
Had people been to a home show and bought $100 filter. New blower motor.
Yeah, filters only catch that bright white dust. Here's your bill.
I always tell home owners a 4 is enough.
yea nut its in the fire gonna b hot get the ov glove on
change mine every 4 weeks
Steve Lav tells his customers the same thing. Buy the cheap filters.
in one his video he did put 3M one in
Ok
put in a new filt this time joe leave the plastic wrapper on da some folks should still b in apts or mommas basement
Maybe a better title would be "Lack of Maintenance Will Kill Your Furnace" I have used the Filtrete 1200 Allergen Reduction Filters since I built my house in 2008. Not one problem with the furnace in 13 years. Don't believe everything you see on the interweb.
Wait you don’t check a filter first whenever you’re doing a service call, instead you like to crawl around looking at ductwork and gas lines fiddling with a fan and checking airflow.
so you didn't watch the whole video and listened to what i said at the end of the video and you just wanted to make a stupid comment
I bet you anything they’re running those stand alone humidifiers in their bedrooms. That causes that white film on those filters, we see it all the time
Same here.
Using distilled water in those humidifiers prevents that mineral white powder from forming. But most people don't.
Don't use pleated filters
Why do people waste their money on that crap as seen on tv the kid at home depot said it was good, like the water heater blanket. .
3m filters are the best for your health
not good for your bank account when you need new system from using them them over priced filters
Change the water heater there while you're at it , Looks old
I was thinking the same thing. Late 80s early 90s by the color scheme.
#139 thumbs Up
Filters dont kill furnaces...clueless people do
Need to install TWO ! 20” X 30” X 5” deep (just example) to replace that single 1” filter to step up to MERV 11, MERV 13 and make it big enough in surface face area in case they go crazy and install MERV 16.
Get that surface face air velocity down around 200 per square foot of high Merv surface medium face velocity. 400 face velocity is pushing the edge of laboratory conditions only with clean air as soon as you collect even a little amount of dust you go right into restriction.
Always over engineer it more surface face velocity on MERV filters is better. But they will cry like a little baby when you give them the price to make up the custom sheet metal cabin and the price of the filters.
“ but I only want to spend $20 for a Home Depot filter” with very few pleats so it gets restricted faster and has less surface area face