Some HVAC pros prefer to call it routine maintenance. Whatever you call a tune-up, it keeps your furnace in top shape and ...

A simple annual do-it-yourself tune-up can help to keep your heating system running near its peak efficiency. Keep in mind though, if your furnace or heat pump is old, its peak efficiency may ...

A tune-up will also help heating systems run more efficiently, he said. Always close the furnace flue, or else it will lead heat outside the house, advises Wolfe. Lastly, manually turn down the ...