Box Overheating, need advice 🌿”

89F yes too hot. Well technically it's not bit you would need to max out every metric and push hard. But your little grow box must learn to walk before it can run. You have your tent. You have your lung room. You have fresh air exchange. Daytime you kinda want to extract heat but keep some of the humidity. Vpd during daylight generally likes higher rh if you look to optimize. With that much extraction to control temps your going to create too strong a negative pressure with hot and dry conditions. Regular air pots in that environment will need watered potentially multiple times per day. Light go on when it's dark outside. Lights off when it's light outside. This will help mitigate heat. Extract all heat outside, fresh air pulled in from lung room. You can either save up and purchase portable ac unit which is a little pricy. Game changer. As a cheaper alternative you could cut out a window size hole for a window styled ac unit. Have it sit inside the box with the back end out of it, collecting water that drips out from bottom. Or you can cool the lung room with ac. Both will work. Cooling during the day is the issue. Once you get past August things should cool down and your box should drop a few degrees ambient. Making it perfect for autumn/ winter then your enemy is RH overnight. Stick to the fundamentals then do what all of the rest of us have done for years, fuxk it all up then learn from our mistakes 😀👍😉😄👏. Best of luck.