Upon arrival, customer stated furnace was new but wasn’t working. Upon inspection of the unit found 2024 Goodman, gas furnace that is partially installed with the flue vent disconnected, high wire not up to code or have a kill switch, all the ductwork is messed up and destroyed. Unit has no low-voltage wire to it. Existing flue vent cannot be used because it’s not up to code. We have to install a side vent power ventor. We’ll have to hook up ductwork and bring unit up to code before I can perform a wire up and start up. Crawlspace is very low. recommending getting install manager out to replace all new ductwork and install 90% gas furnace for proper installation. Sent email to customer of all estimates.