The economic Lennox ML Gas Furnace has efficiency ratings of AFUE and can save you hundreds of dollars each year, compared to standard furnaces..Provides replacement furnace filters for Air Bear, Honeywell ande Guard high efficiency air filters..Federal tax credit for high efficiency air conditioners and water heating equipment..How much a furnace should cost. Average costs and comments from CostHelper’s team of professional journalists and community of users. Replacing a gas furnace can cost.
All other ENERGY STAR federal tax credits expired at the end of . The tax credit information contained within this website is provided for informational .