When harsh winter weather hits, a reliable gas furnace is the ultimate source of warmth and safety. Not all furnace systems are equal, but the MRCOOL 45k BTU single stage, 80% AFUE gas furnace stands out as one of the best on the market. It can be installed upflow or horizontal, providing powerful heating capabilities that will last for decades. Its 80% AFUE energy efficiency rating ensures that 80% of your heating fuel budget is converted into effective heat for your home, keeping your heating bill
