Yes, too funny about WiFi HVAC systems. The new development where we built a home a few years ago had that as part of the features the builder provided. People eventually realized the builder/HVAC company set ALL of the thermostats to the same default password. I can recall our HOA sending out a message to all homeowners to either change the password and/or turn that feature to OFF if you didn't plan to use it. I can see programming your thermostat if everyone is at work/school during the day (or going on vacation) and adjust the temp to the desired setting an hour or two before you arrive home to save money, but doing that via WiFi doesn't seem necessary. WiFi microwave...........hmmm so you can pop some corn while at the other side of your house? Oh, wait, you still have to put the corn in the microwave, another useless feature.