Earlier quoted context omitted.
Last week I switched from Rancher Desktop back to Docker Desktop because I couldn't get VSCode Dev Containers to work properly. I was stumped because it should work out of the box. However it didn't work on a fresh install of Docker Desktop either. Apparently when Rancher Desktop was first released I've installed it and setup a Docker alias in my ~/.zshrc: alias docker=nerdctl After removing that alias everything wor…
Hi, Sorry for using this comment as a way to get ahold of you but there is no DM function on HN and the comment I was wondering about was posted by you 18 days ago and the comments are locked now. Here is the comment in question: https://news.ycombinator.com/item?id=33347058 I have been controlling my water heater with HA for a few months and I too am risk averse when it comes to legionella. You have taken it to anot…
First of all, I'm also concerned by legionella growth. However all the sources I can find suggests that at a legionella run above 60 degrees celsius once a week should be enough to kill all bacteria. So that's what I'm doing.
My sensor installation was extremely easy. My warm water heater is in fact a barrel within a barrel. And some insulation material between those barrels. If it would only be metal, you lose too much heat. In the outside barrel (excuse me for lack of a better term) there was an analogue thermometer. This thermometer has a metal back so it makes direct contact with the inside barrel. I just pulled this one out and replaced it with a DS18B20 probe. Again metal against metal, so maximum contact.
Finally I have calibrated the sensor by running it with hot water at the tap and measuring the temperature both there and on the warm water heater (with 2 DS18B20). I've done this for several temperatures with intervals of 10 degrees. I've ignored possible sensor deviations. Finally I used Excel's INTERCEPT and SLOPE functions on the range to calculate the value needed for a linear equation. I have used the formula:
boiler_temperature * SLOPE + INTERCEPT
I've also added my personal page to the 'About me' on here, and I have the same Reddit username if you want to DM me there.