2022 upstairs gas upflow 3t goodman - friend of the homeowner install. 1995 downstairs gas upflow Coleman. 2010 goodman condenser. Expired manufacturers warranty. Liquid propane systems. Heavy flame rollout damage. Compromised heatexchanger. Hot surface igniter compromised. Gas pressure (lp) below manufacturers specifications. Flue pipe Compromised and against code. Evaporator coil is extremely rusted. Blower wheel has heavy buildup. Blower motor has leaking oil. Blower capacitor weak. Filters are not replaced regularly. Vapor line needs insulation. System is not pulling humidity out of the air correctly and the upstairs unit is showing signs of rust. No proper Indoor disconnect. Husband is out of town but was able to FaceTime with him and educate on system saftey and performance. I shared all my photo evidence with Mrs.Teague and brought her to the issues. Both homeowners agreed that the 30yo system needs to be replaced. They mentioned getting other quotes. Cash buyers.