Now that our partner and I live down south, we are going to get a heat pump system! A long time ago I study about how efficient heat pump units were. They transfer existing heat energy rather than create it. It is so much more cost effective rather than using gasses. The heat pump uses refrigerant, piping and more than one units to transfer the air conditioning inside the home too. The heat pump system is a more than one for one unit, but you get both heating and air in one system that you buy maintenance for. So that saves money there. Also, since the system is ductless, it can be hooked up to be Heating, Ventilation, and A/C zone control capable. Add a couple of thermostats and each room of the home can be set to a bizarre temperature control program, however vacant rooms don’t need Heating, Ventilation, and A/C and not every space has to be the same. This saves even more energy, and but, our partner and I living in the north were not able to purchase a heat pump. Since the heat pump uses existing heat in the air quality, the northern winters would have been rough. There is no heat in the air or underground to use when the un-even temperatures drop below 50 degrees. So I have been waiting to transfer to a warmer location in order to get the amazing heat pump. Now that we are in the south, I can’t wait to have it installed. Yes, the initial cost of heat pump replacement will be a bit much. But, overtime the energy savings will spend money that asking price back.