Invest in a high efficiency furnace, boiler, or heat pump. Of course it will cost you upfront, but with the money you'll save on heating costs due to increased efficiency, a new system will end up paying for itself!
More importantly, you will enjoy the peace of mind that comes with a brand new warranty, which means no expensive repair bills to worry about.
Call us at (214) 985-0268 and we'll make a recommendation based on your home and budget.