Living in the north makes a big difference when it comes to HVAC. The people in the north have a different set of needs than those in the south. You need better heating than you do air conditioning. I know a lot of people who have window air conditioners, but they have premium heating systems. My sister lives down south and they have the best air conditioning system you could get. They make sure they have their regular maintenance and repairs done. When it comes to heating, they have an electric fireplace that I have yet to see working. My youngest brother has central heating and air conditioning in his home. He had Zone Control installed so he would be able to close off the unused rooms and not worry about heating or cooling them when they weren’t being used. He also had a sensor installed in the family room. When it wasn’t in use, they had the thermostat down low. All it took was for someone to walk into the room and the thermostat would adjust to a much more comfortable temperature. My older brother does a lot of traveling. When he had his HVAC installed, he opted for a Smart Thermostat. The Smart Thermostat is really good for him. He can monitor his HVAC system from anywhere that he has WiFi. He has an app on his phone. Whenever he wants, he can check the temperature of any given room. He can also see if there are any problems with the HVAC. If he sees there is something wrong, he can notify the HVAC company, even if he is five thousand miles away.