They are nearly double the price of what a typical residential HVAC program is! So my advice to you is get yourself a portable heating unit to help heat your overly cold home with the uneven temperatures
When you have an overly freezing home there is no need to have to crank the heck out of your furnace! There are things you can do to keep your home warm like you want. That is to buy a portable heater and run it on a low setting while running your regular heating unit. Now you don’t have to crank that thermostat anymore! The heating from the portable furnace on the low setting will make it so that it evens out the offset of the freezing uneven temperatures in your home. Another program would be to invest in the HVAC control zone. Although if you want a a/c zone control then you are going to need to expect to pay a lot of money. They are nearly double the price of what a typical residential HVAC program is! So my advice to you is get yourself a portable heating unit to help heat your overly cold home with the uneven temperatures. The reason for overly freezing homes most of the time is because there is something off with the build of the house or the general air flow of the central HVAC system. A portable heating unit can assist in making it so you do not have to go insane to get things finally working respectfully and having good heating in your home.