Tech noticed furnace flue pipe for main level system wasn’t in hvac industry code! Tech noticed lots of rust and corrosion at furnace heat exchanger. This leads to cracks and carbon monoxide poisoning that can enter the home or can cause a fire hazard at anytime in the home. Customer wants to schedule for a CA tomorrow morning to come out and quote for a full system replacement for main level and possibly upstairs level systems. Thanks for choosing TE Certified if you liked your technician service today don’t hesitate to leave a 5 star review!