Humidity from a whole-house humidifier makes a house more comfortable in the winter.
This is a writeup of my experience adding humidity control to my home automation. Includes working piston and hardware information.
[https://docs.google.com/document/d/1zyxMPVNPm3gf4zfv2qMw8uKWWXY1FH6u0Ieamx-TZ3U/edit?usp=sharing]