Snake oil.

Thank you for the input. Is this based on experience with the device?

Real actual science (rather than manufacturer anecdotal ''evidence'') shows that all of these types of devices are bunkum.

Yes, that is exactly what I am looking for! Can you please point me toward some real actual science on these things?

Did you get one of these last year? We are looking into one now and wondering the same thing...they seem to have good reviews.

I'm trying to decide on this device as well. Any more personal experiences? I did find that the Housetron in particular was actually studied under a federal General Services Administration "green proving ground" study conducted by the Department of Energy. They did find it performed as claimed when installed to protect a courthouse water heater that kept failing due to limescale. While this was not a large scale study, it does give some legitimacy to the claims: https://www.gsa.gov/portal/category/102575

I'm getting constant calcification in my aerators and it has also caused issues with my washing machine and cost me money. I need to figure out how to deal with this problem but don't like water softeners (for many reasons). I'm considering the Housetron as well as the Hydroflow S38, although so far I'm convinced by the simplicity and longevity of the Housetron.

Any further input appreciated.

For followup, we have now had a Housetron installed for about a year. My opinion based on our experience is that it does nothing. We have a little calcium buildup on our new bathroom fixtures that were installed at the same time as the Housetron, and we continue to have mineral deposits on things such as faucets, refrigerator water dispensers, tea kettles, etc that existed before the Housetron and had previous deposits. Yes, there could be a slight decrease in mineral deposition but my opinion is that if such a decrease exists it is not enough to justify the device. Anyone else have any experience?