Install new burner assembly and gas valve for existing Coleman gas furnace. Inspect incoming gas line to unit for any internal rust damage. Verify proper operation upon completion of repairs. Collect quoted price upon completion of repairs. This quoted price of $1100 was approved by PA and includes 15% discount applied. 5/3/23-PT. Upon arrival I powered the Coleman furnace down. Mode #TG9S100C16MP11B, serial #W1E7771130. I removed the access panel and turned off the gas. I removed the burner assembly and gas valve and installed a new one. Once all the connections were made I checked for gas leaks using bubbles.I also secured the gas line to ensure someone doesn’t damage it by mistake. Upon completion I had the homeowner call for heat. The system started without any issues. I took a combustion analysis test and received the following readings. O2 is at 9% and the co levels are 14 ppm. The system is operating properly at this time.