We leave our dogs our FW all the time. They are too big to take along on day trips. We leave the radio on, A/C or heat on and they are fine, have stayed alone for over 8 hours. For some reason a lot of folks get theor knickers in a not about an RV will become super heated in the summer sun in 30 minutes if the A/C shut down. We live in Alabama and our FW sits uncovered in the sun all day. I have yet to walk in the RV and it's any hotter than the outside air. Our dogs will sit outside for houra and not get a heat stroke so I seriously doubt they would if the A/C were to shut down for a couple of hours. Just my two cents, now bash away.