Hey indica how many vent holes those DR80's have? I know loudblunt runs a DR150 w/ no heat problems. I am going to be investing in a DR300 soon and i expect no heat issues ( have a 8,000 Btu a/c gonna use) Its all about air movement man.
But i could see in certain areas temps being way too hot in the summer to effectively vent these. They are thermally sealed, so no heat escapes through the fabric, so that might be making your situation worse. Have you thought about running it with the doors open? or is security an issue? There are so many different aspect of everyones grows, be it climate or equipment nothing is going to work 100% the same for one as it did for another.
Personally I think these are the best tent out of the market, i mean their construction is solid, they are reflective on the inside, thermal sealed, light supports, vent socks, doors and windows, and to top it all off they make a 9ft version
