This was a short week as I have to go to Malta for work. I did add some insulation and walls to the upstairs toilet room. Besides I put a digital thermometer in the sauna. This ds18b20 waterproof sensor is connected to a Sonoff basic which is running tasmota firmware, so it can be easily added to the home automation software. I created an automation to switch on the salt wall LEDs once the sauna hit 70 degrees.