The cheapest method of heating a house depends on your regional utility rates, but operating a modern, high-efficiency heat pump or utilizing low-cost natural gas provides the lowest operating costs. Heat pumps move ambient thermal energy with high efficiency, while natural gas burns fuel cleanly and affordably compared to expensive electric resistance baseboards. Beyond equipment, practicing passive solar heating by opening curtains on sunny winter days and sealing household air leaks represents the cheapest overall method to cut heating expenses.
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