I live in a progressive state in the US and currently renovating a house. Holy crap they all fight me tooth and nail telling me what a horrible idea they are. Nothing but problems, always break, oh my goodness what if the power goes out, the grid cannot handle the load so don’t do it. These old timers need to go away.
Their point is use a small generator to power the gas heater where as a heat pump is ‘impossible’.I mention a whole house battery is in my 5 year plan to which they laugh and say your house will burn down. I don’t have the patience. I told them I’m an electrical engineer specialized in battery systems and to let me worry about the lithium fires. That shut him up fast.