Goes to show the huge differences in different countries for energy costs. Our electricity is $0.11kw/h and natural gas is $0.08 so with 300% efficiency vs. gas

Goes to show the huge differences in different countries for energy costs. Our electricity is $0.11kw/h and natural gas is $0.08 so with 300% efficiency vs. gas air furnace which is probably 50% efficient (so much heat gets lost in leaky ducting). Our heat pumps will have paid for themselves in ~5 years conservatively, and we also get to cool the house which we could not do before. Moving the heat around the house requires doors to be open and thoughtful placement of the head units which have fans in them to push the air around. It is certainly not ideal but we are comfortable.