I removed this barely-used furnace from my home. It is a quality, 80%-AFUE, single-stage, Heil, natural-gas furnace originally installed in July 2019. I choose to replace the unit with a higher-efficiency system. This unit is 33.5" tall, 29" deep, and 21" wide; a multi-position furnace that can be mounted upflow, downflow or horizontal; 110,000 Btu/hr-input; and, has a 4-ton, 1600-cfm blower. It is missing the front door. OBO