Hello and thank you for reaching out. Much appreciated.
Its a room in the top floor/loft with one window. One 4x4 tent and one 2x4. There is no ventilation canals i can take use of. Its an old house.
In the 4x4
720 w led boards in total. Drivers mounted in the roof. Plan on getting hold of longer cables so I can Mount them outside of tent.
2 x oscillating 20w fans.
1 too small filter and one extractor fan. Its in the 200-300 cfm range i think.
Not running dehumidifer or humidifier. Have access to it though.
The 2x4 seems to be doing allright but its the veg tent.
I have tried to duct heat out the window but it seems to be little efficient. It seems to mix with the air coming in.
So now its just blowing heat straight up out top of the tents.
This room is not insulated.
In winters it can be -25 degree celsius and in summer it goes to 30 degrees, some days