Can patch but it’ll be 1-2 days of work for a good painted finish. Would have to do multiple patching/sanding coats, masking, priming then a couple of rolls of paint of the wall. It’s not trivial amount of work. For a slap-dash finish I could skip some of the steps but then again for a slap-dash look I can keep the wall plates. 😅
No, it really is 25° in the two rooms this unit heats up. 🦎
With that said, the temperature rarely falls below 25°C due to the heat coming off of the neighbouring units in the building, unless I open the window. 🥹
Yeah, I suppose one could do a generic thermostat in HA and use just a few smart switches. However that requires some rewiring of the previously thermostat-controlled device.
I measured the signal generator alone, not connected to the input. It goes to 4.5V high and 0.001V low. Then I connected it to the input and measured at the input. I got 4.5V high and 1.1V low.
Also I ordered the 74LVC1G07 buffer along with a breakout board which should allow me to hook it up inline and test. I'll report back when I do.