Common Myths regarding Furnace Heat Exchangers
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- เผยแพร่เมื่อ 17 ก.ย. 2024
- Myth #2 I have a carbon monoxide alarm so I'll just wait until that goes off to determine when it's time for a new furnace. Okay, then wait until your smoke detectors go off before you fix those faulty wires in your wall. Many times a heat exchanger that has areas of concern or a crack will not emit CO. However, according to the AGA (American Gas Association) any visible failure is reason to repair or replace.
See ALL common myths at www.heatexcahngersafty.com
liked the video, the removal of the disc is required on a LP conversion of carrier Furnace we worked on. It soots up all the time and had a spongelike hard crystal that isn't black but rather grey and the only solution we found was to lower the gas pressure...rotate heat exchanger replacement and clean out with rods and power washing till next year.... has been a thorn in my side for a few years now. wish I knew what this stuff was, Carrier hasn't a clue. Thought it might be the fuel, but two larger ones on a higher roof work fine although newer and different model
Should have bought a Trane or American Standard; Carrier stinks and it has for many years!
The restrictor disc is a small orifice located behind many inducer or vent motors on high efficient gas furnaces. If the restrictor disc is left out after a repair it can cause issues.
Manufacturers field tested in your home. Except for carrier high efficiency,
Burners were at bottom of heat exchanger condensation formed in primary on start up & could not escape, also they used 4 pass heat exchanger condensation happened to early in primary on these, Next they went to 3 pass primary to solve that problem. This took years at the expense of the consumer. When they would solve a problem it's like they deliberately caused another one like replacing stainless headers with plastic or replacing stainless secondary with aluminized steel with polypro liner.
It happens all the time; consumers are like guinea pigs and paying for it!
I learned something today about how carbon monoxide can leak & cause issues. I just called Mr Holland services & has an appt. On Wed. To look at my HVAC system to evaluate this.
Thanks for the video. I have a goodman furnace, now about 4 yrs old that has been running beautifully. (GMEC96). When the installer put it in , he didnt replace the plenum that sits on the burner cabinet. That plenum has a patched area i removed easily, because i was interested in looking at the condition of the ACOIL . Well as i peered in, much to my shock, I noticed 3 rust blotches on the heat exchanger. A dark one, a lighter one behind it and a third lighter one down the same side (Theres is a heavy-duty, aluminized-steel tubular heat exchanger and a stainless-steel secondary heat exchanger. ) I touched the tubular affected area with my hand and it was still solid no cracks. How worried should i be in this situation . I intend on unclogging or replacing the ACOIL that has a heavy rust spot on it that know is where the drip came from to cause the rust spots. What would you do this situation? Im concerned about carb monoxide but the exchanger seems solid still. Thanks for your time.
I have a 'pipe / tubular" style heat exchanger on a Goodman GMT 090-4A (part# 4021309S) which is 18 years old. I have inspected the heat exchanger inside and out with a camera and I see very little rust or discoloration. I am located in Dallas with a dry climate and the unit is horizontally installed in the attic. I considered replacing the heat exchanger due to age, but I am not sure if it is really necessary. Steve, what do you think?
Sounds like a lot of quality and quality control failures.
@Google user incorrect new furnaces are not junk. They are just more sophisticated and require installation and proper maintenance by someone who knows what they are doing. When furnaces are set properly and maintained there are usually very few issues.
Is that why my G11e that is 35 years old has NEVER needed any repairs but the new 96% furnace my workplace replaced it with had 4 service calls the first year and a cracked heat exchanger just out of warranttee, and said warrantee's fine print essentially says the exchanger is not covered at all because they can claim you didn't change the FILTER frequently enough and worm their way out of the warrantee, LOL!!
My Coleman is 25 years old, it went 20 years with no problem with yearly cleaning. I replaced a few thing's and now they fail once or twice a year?! New anything is JUNK prove me wrong.
@Neb6 Your bullshit ass ITT Tech degree does not qualify you to even look at a PCB.
Hi mr Holland the 2e heat exchanger exemple you show to the video is from carrier design they know about that problem and they have a written procedure to follow up about 2e exchange that cumulate and partiely block!
I see some Lennox Pulses and whisper heats there. The wavy heat exchanger design was a big failure. I believe the york stellar was the same way
Great video
All those heat exchangers that are on the floor are from carrier correct?
awesome vid.. thanks for taking time to make this..
is the air exchanger the same as the heat exchanger
The bulge was caused by flame impingement not a manufacturers defect.
Carbon monoxide test of exhaust should be required to be first check on any sevice call
Just had our furnace replaced due to a plugged secondary. I have it cleaned every year and no one caught it.
Good video, thanks for sharing.
Please elaborate on the missing disc.
the exhaust motor pulls the air and flames into the burner tubes. If it pulls too hard, the flames will get sucked through the heat exchanger too fast and become a flame thrower, of course thats exaggerated, but I think you get the point. This cuts down on the draft from the inducer draft motor, this also gives the heat more contact time with the sheet metal to transfer its heat to the exchanger and then into the airstream. This makes it more efficient. The disc is a piece of sheet metal to reduce the draft because its not adjustable.
THEY ARE MOSTLY MADE LIKE TRASH ..THESE COMPANIES SHOULD BE ASHAMED..BUT I BELIEVE THEY ARE NOT AND TO THE CONTRARY THEY JUST WANT THE MONEY!!!
Hi Steve, if there was a attic fire in a house and furnace was running at the time of fire, should furnace be replaced? Furnace was located in basement and has no visable damage.
That's a tough call. My concern would be if water from the firefighters made it to the furnace. If it was me, I would replace the furnace.
Thanks Steve, I made the same call.
Yes, if any smoke got into the domestic air side of the system then yes, it needs to be replaced
It would be nice if he can show how to test it without taking it off. If i have to take it out, i would install a new heat exchanger rather than put old one back it.
Nice video
Bravo 🙏🙏🙏🙏💐💐 😍😍😍👍👍👍👍👍
Great video, very informative. In Florida we rarely get to work on those things, could you explain to me how the cover comes off? just kidding. You may want to fire whoever came up with that music tho:-)
if a furnace passes the composition test but if put if I test for. CO inside the heat extanger it reads over 60 PPM
0 PPM in supply air
20 years old Carrier
10 PPM in Flue pipe
by the way that's my own furnace
I'm a new Tech
The biggest ripoff is a tech telling you your geat exchanger us bad cuz you cannot see it. Always get a second opinion