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Started By
Message
AC Duct Cleaning
Posted on 11/5/21 at 3:21 am
Posted on 11/5/21 at 3:21 am
My house is now 30 years old, and the air registers are having to be removed and cleaned yearly. I'm pretty sure the inside of my ducts are filthy and could use a good cleaning. All my ducts are of the flexible type, and I know in years past having them cleaned was running a risk of damage. My house is two stories and it has only one large A/C unit. The air handler is located downstairs. If the ducts were to be damaged by the cleaning it would be an expensive pain in the arse to repair due to the sheetrock that would have to be replaced. I am reading claims of new equipment that can now clean flexible ductwork with no damage.
Has anyone here had their flexible duct work cleaned, and done so damage free?
TIA
Has anyone here had their flexible duct work cleaned, and done so damage free?
TIA
3
Posted on 11/5/21 at 6:05 am to LsuFan_1955
My experience with this is it is much more cost effective in the long run to just replace the flex duct altogether. I do not think you will be able to successfully clean flex duct - if you had rigid ductwork, I'd say give it a shot.
Ultimately, regardless of system age, if you have ductwork that is dirty enough to require cleaning, then you probably have a leak somewhere that should be fixed.
Ultimately, regardless of system age, if you have ductwork that is dirty enough to require cleaning, then you probably have a leak somewhere that should be fixed.
Posted on 11/5/21 at 6:33 am to Ziggy
I'm pretty sure I have a leak or two upstairs, and those are easily fixable. It's the downstairs that concerns me. To replace the ductwork downstairs I'd have to open a lot of sheetrock up.
Posted on 11/5/21 at 10:16 am to LsuFan_1955
quote:
I'm pretty sure I have a leak or two upstairs, and those are easily fixable.
Use the smoke trick to find the locations. Worked on mine (I also have flex ducts and they suck)
Posted on 11/5/21 at 11:33 am to LsuFan_1955
quote:
I'm pretty sure I have a leak or two upstairs
the leaks for air coming out hurt efficiency but arent critical or cause dust in the ducts.
its the leaks in the return air filtered side of the system that is super critical to be well sealed since that is where all the dust gets in and its the only way it gets in
Posted on 11/5/21 at 2:44 pm to LsuFan_1955
Couple articles for you to read
Should You Clean Your AC Ducts
Duct Cleaning
As keakar stated, if you have dirty ducts you need to look for duct leaks on the return side of HVAC (under negative pressure) which are bypassing the HVAC filter.
Flexible ducts are recommended to be replaced not cleaned but I’ve not read new equipment is avaiable to clean flex ducts. I would not chance it if you would have to remove drywall to access the ducts should they be damaged.
Should You Clean Your AC Ducts
Duct Cleaning
As keakar stated, if you have dirty ducts you need to look for duct leaks on the return side of HVAC (under negative pressure) which are bypassing the HVAC filter.
Flexible ducts are recommended to be replaced not cleaned but I’ve not read new equipment is avaiable to clean flex ducts. I would not chance it if you would have to remove drywall to access the ducts should they be damaged.
This post was edited on 11/5/21 at 6:41 pm
Posted on 11/5/21 at 2:53 pm to LsuFan_1955
Replace ducts Good winter time job
This post was edited on 11/5/21 at 2:54 pm
Posted on 11/6/21 at 4:32 am to CrawDude
Good articles, thanks! Thank you everyone for the advice. I'm going to have my AC guy inspect everything, especially the return side. If he finds any leaks around there the sheetrock work will be minimal. I'll update this thread after he does his inspection, and I make my decision on which way to go.
Posted on 11/6/21 at 4:34 am to Hamma1122
quote:
Replace ducts Good winter time job
You're right, Hamma, and since I am doing some remodeling already it is making me lean towards giving the duct cleaning a shot first. If it works, it saves me thousands in sheetrock repair. And if it doesn't work, well...like you said "it's a good winter time job."
This post was edited on 11/6/21 at 5:55 am
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