heat problem I'm getting ready for my first serious grow but the only place I can put my tent is in a hot room because of my house air conditioner eng

Way too warm. 28c is top end.

37 at night with no lights just isn't going to work.........it will be 50+ when the lights are on, most probably, and trying to grow plants at that temp range is going to be a challenge. I would be looking seriously for a better place to put the grow tent...........or waitng for summer and growing outdoors.

I have the same problem. I am running 5 fans and a 4" inline fan. I have a 6" coming and hope that will help. Other than that, I'm waiting for the new a c. infinity air conditioner to be restocked. Sometimes my humidity is in the 70 s.

Self sabotage either compromise or have less optimal grows. maybe some strains even struggle to survive at 37c. you might find the right genetics that can reasonable handle it but it's going to limit you one way or another. portable ac for that room... all you can do.

Also try to blow fresh cold air from outside/a cool part of your home into one opening of the tent while using a strong exhaust fan to blow the hot air from the tent away from it again ( into your home or through the window. Good luck bro! 😊

37 celsius at night/no lights is way too hot bro, you might need an air conditioner. Im not saying its not possible growing with such temperatures, but you will definitely have stressed out plants, inferior product with low terpenes and perhaps more problems. Definitely research for heat resistant strains, maybe even consider an outdoor strain or something closely related.

good luck bro