Gordon Smith
  • Seattle, WA
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Duct Cleaning? Good value or a waste of money?

Started this discussion. Last reply by Charles Buell Nov 30, 2018. 39 Replies

I have lots of my auditing customers who ask me about duct cleaning, and if they should do it.  It seems like the only way to get them really clean is with some sort of roto brush, but it also seems…Continue

Tags: cleaning, duct

 

Gordon Smith's Page

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Charles Buell replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"First of all, I certainly did not mean to imply it never happens, it certainly can and does happen, just not for the reasons you suggest."
Nov 30, 2018
Kent Browning replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"There is not a "Reply" button on the last post. So I came back up to this post since it contains the statements about theory vs data not matching means keep the data and get a new theory. Attached are two pictures showing mold growth in…"
Nov 30, 2018
Charles Buell replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"The dew point temperature is so close, that it only takes a very few degrees of rise in duct temp that there is no chance of condensation.  Add to that the fact the duct surface temp will always stay warmer than the air temp coming into it,…"
Nov 29, 2018
Kent Browning replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"I hate beating a dead horse but - Quoting "...very near it the humidity is going to be close to 100%, but as the air moves away from the coil the humidity is going to drop considerably and will very quickly be above the dew point." I would…"
Nov 29, 2018
Charles Buell replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"Yes of  course, I meant the indoor coil.  Obviously the coil at 40 degrees is going to be well below the dew point sufficient to condense moisture out of the air where it can be drained away, so on that surface or very near it the humidity…"
Nov 29, 2018
Kent Browning replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"I'm not even sure how to address that comment. First - If we are talking about the "condenser" (sic) then we are talking the outdoor unit of an air conditioner or a heat pump in heating mode. Neither of which will condense water from…"
Nov 29, 2018
Charles Buell replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"To reach dew point at 55 degrees F, the humidity in the duct after the condenser would have to be above 99%---I think that would be unusual.  It is more likely warm moist air is finding its way into the cold duct and condensing."
Nov 29, 2018
Kent Browning replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"I agree the air is saturated because the temperature is at the dew point. The "amount of moisture" is irrelevant - the air is saturated. At a 55 degree dew point there is plenty of moisture to wet the inside of the ducts. Any condensation…"
Nov 29, 2018
Charles Buell replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"The air is only saturated because it is very cold.  The amount of "actual moisture" in the air is very low.  Any condensation that happens should be outside the ducts, not inside the ducts.  That would be an inadequate…"
Nov 29, 2018
Kent Browning replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"There is some good info in that article but there are also errors. I give the author credit - I think he is reporting accurately on his experience. However, in most humid climates the air leaving the cooling coil is saturated and may keep the…"
Nov 29, 2018
Charles Buell replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"  Duct Cleaning"
Nov 29, 2018
John White replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"Ductless air conditioning systems allow you to break away from larger units that weave ductwork throughout your home. With a ductless ac installation, small groups are installed in each area of your home providing heated or cooled air directly where…"
Nov 20, 2018
tedkidd replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"Why are they calling? Get 4 or 5 why's. Are supplies dirty?! Why!! In most cases, changing from tiny return with restrictive 1" filter to Big A$$ Drop with 4" media filter will be MUCH better way to improve comfort, health, and…"
Nov 15, 2018
Daniel Baur-McGuire replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"Kristoff Irwin had an episode on his Positive Energy podcast about this. He interviewed a guy with the epa (i believe) who is also doing his own research actively on larger systems.  Basically yes it does help but sometimes the cleaning can be…"
Nov 8, 2018
Ed Minch replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
""They are taken in by the return ducts and circulated around the home by the HVAC system. A regular duct cleaning can help reduce the number of these particulates building up and being pushed back into the home." If they are circulating…"
Nov 5, 2018
Franco Oyuela replied to Gordon Smith's discussion Duct Cleaning? Good value or a waste of money?
"WHAT IS THE PURPOSE OF DUCT CLEANING? A cleaning every year by a professional that doesn’t make the duct cleaning a waste of money can provide relief from a whole host of problems. Proper duct cleaning can reduce the amount of dust being…"
Nov 5, 2018

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Revolution Green Power
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BPI, NABCEP, Energy Star Home Verifier
Professional Interests
Solar Power, Energy Efficiency, Green Building
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http://www.RevolutionGreenPower.com

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