Double check that the AC unit doesn’t pull more than 15A {Amps). That’s all those smart plugs are rated for. It’s probably fine, but you don’t want to start a fire. I’ve seen pictures of smart plugs that melted when used on some refrigerators.

Good plan. I think the temp sensor will be an excellent addition. Whole setup could pay for itself in saved energy not leaving the AC running unnecessarily.

Waste of a perfectly good pillow case. 🤨

I bet her son got a hold of her unlocked phone and posted that himself.

Roughly $30k pre COVID.

2 holes, 400’ each.

We have a WaterFurnace geothermal system. Love it. Was expensive to have installed (drilling rig in our yard for a couple days drilling deep holes for the piping was the biggest expense), but after several years of use now, totally worth it.