Tony C.
··Ωf Jury memberWell worth a read (full thread linked below)...
https://threadreaderapp.com/thread/1753906606738125119.html
https://threadreaderapp.com/thread/1753906606738125119.html
Unless distilled water is used, it's inevitable that solids will precipitate when the ultrasound-generated water droplets evaporate. Other types of humidifier, that generate water vapor instead of droplets, will generally be better in this regard. Of course, that leads to scaling of the heating element, but I haven't found that to be a problem in practice, they still function adequately for many years.
Please set me straight if I misread or misunderstood the article
We have a humidifier unit on our main HVAC system, and as you say the mesh gets scaly (we clean it every year to remove that) but we just have city water going to that and there's no issue. I was surprised when we started seeing all this white particulate all over the place when we used these small units...
Breathe those particles or swallow them, either way your dead in the end.
My furnace started short-cycling a couple years ago. I replaced the filter as the first, easy troubleshooting step. That fixed it, but the issue came back after a couple weeks. Called a technician, who blamed it on using a very restrictive (MPR 2200) filter. It made no sense to me, but his diagnosis was at least related to the main issue. I compared a 2-week old filter to a new one, and realized how much more white it looked. The culprit was what you shared above.
I don’t have a reason to use a humidifier all the time anymore, but when I do, I fill it with the water from my reverse osmosis tank and don’t have to deal with the white dust that goes all over.