Some models of Winchester furnaces can achieve very high efficiency ratings, making them more cost-effective in the long run through savings on fuel costs. In addition, these furnaces are easier to install than older designs, potentially saving buyers on up-front costs for installation as well.
Winchester two-stage multiposition gas furnaces can achieve average fuel use efficiency ratings of up to 96 percent, comparable to the most efficient furnaces on the market, as of 2015. Older designs often only achieve fuel efficiencies of 65 percent or less, so the potential for savings when replacing older models is considerable. In addition, the cooler exhaust gases produced by Winchester high-efficiency furnaces can be expelled through plastic pipes, so there is no requirement for an expensive chimney or flue installation.