Now that our spouse plus I live down south, we are going to get a heat pump system, and a long time ago I learn about how efficient heat pump units were.
They move existing heat energy rather than create it.
It is so much more cost effective rather than using gasses. The heat pump uses refrigerant, piping plus 2 units to transport the cooling system inside the apartment too. The heat pump plan is a 2 for one unit, however you get both heating plus air in one plan that you buy service for. So that saves money there. Also, since the plan is ductless, it can be hooked up to be Heating plus A/C zone control capable. Add a couple of temperature controls plus each room of the apartment can be set to a odd temperature control program! Vacant rooms don’t need Heating plus A/C plus not every space has to be the same. This saves even more energy, then but, our spouse plus 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 rapidly decreasing temperatures drop below 50 degrees. So I have been waiting to move 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.