Goodman GMH951155DX Gas Furnace, Two Stage Burner/Multi-Speed Blower, Upflow/Horizontal - 115,000 BTU Goodman -- multi-position installations: upflow, horizontal left or horizontal right; Multi-speed motor; Two-stage gas valve; Long life, durable silicon nitride ignitor; Comply with California LO-NOX emissions standards; BTU input: 115,000; BTU output: 11