Ever had one of those days where your greenhouse heater decides to blast hotter than the Sahara? I was adjusting the settings for optimal tomato growth, and suddenly it’s a sauna in there. Thankfully, those heirloom varieties love the heat, but I might need to schedule a cooling system tune-up before they start asking for sunglasses.
Sounds like your greenhouse turned into a tropical vacation spot! I’d suggest adding a thermometer to monitor the temps better, especially with those heirlooms; they might get a bit too relaxed otherwise. Have you thought about installing a fan or misting system to cool things down when needed?
I’ve had that happen too, and I ended up installing a backup cooling fan that kicks in when it gets too hot. It saved my plants from turning into sun-dried tomatoes! Have you thought about how you’d handle it if it got even hotter?