If you have an existing thermostat you can usually just swap them out for the Ecobee. We couldn't use smart thermostats in our condo because we had a central cooling tower and heat pumps. The wiring there was more like a commercial building.

Yes! It was an early HE Samsung model (2009) and it was horrible. The controls were so complex! I'm partial to the LG brand myself -- they make a wonderful washer and dryer.

How old is the dish washer?