November 18, 2024: Drake arrived to install new Goodman 80k furnace. Removed old unit. Cored new 3” hole and ran new 3” system 636 exhaust. Piped 1/2” black iron gas line and leak checked. Installed 2 co detectors. Reused thermostat. Installed new 3/4” pvc drain line. Furnace ran for 20 mins. Gas pressures set to 1.8-3.5”wc.