Got some temperature problems - need help!

heyhey people! Thank you so much for opening my post and HOPEFULLY read it all b4 u post some answer or at least ur 0.02$

first of all i need some advices and explanation about how to best take the temp.

atm im using a standard NON digital thermometer "hidden" underneath cardboard at the height of the plants, it says 27-28C - not half bad

ive been struggling to get the temp where it is now. first i had a fan blowing A LOT of air in and non out and the tent doors is kept open all the time, but the temp wud still get up to like 30-32!! so i took a flexi-pipe from an open window into the tent via the fan so the fan is blowing fresh air into the tent (wich still has open doors) the air outside is bout 9-10C so its cooling as fu*k, im just worried that im blowing too cold air into the room? atm its blowing right into some other cardboard inside the room so it dosnt blow right at the pots!

so my problem is that i have to check the temp. all the time cus the smallest fu**ing adjustment in outside temp, window closing or opening too much, doors closing and the temp wud either sink to 21C or rise to 31C! agh.. this crop is killing me..

my questions:

1. if i install a fan to blow in and a fan to blow out air, would that stabilize the temp inside or wudnt that help with anything? (if so should i do this WITH or WITHOUT the flexi-pipe to the window?)

i wish to be able to close the tent doors and the door to the crop room and KNOW that the temp is between 23-28 all day and night..



2. Should i remove the flexi-pipe from my window? is it stupid to blow that cold air into the room? as i said b4 the tent doors are open and its not blowing directly at the pots/plants



and finally 3. if i messure the temp in the shadow under cardboard, would that be presise? i mean if im blowing cold cold air into the room with the tent doors OPEN i would think that maybe the thermometer wouldnt "pick that up" and it would say 25C when the plants are actully freezing at like 21C or smthn? or am i just beeing dummmbbb? :wtf:


edit: for those who need to know:

20 C = 68 F
23 C = 73 F
25 C = 77 F
28 C = 82 F

sorry for this double post but forgot to add some info and too late for editing :(

if i messure the temp. by placing the thermometer on top of the pots (in the light) it reads 32C if i place it in the shadow of the cardboard (still right in between then pots) it reads 27-28

please explain, why should i take the temp from the shadow? the plants dont have any shadow? wouldnt that mean that the PLANTS are cooking in 32C and the thermometer is chilling in the shadow at 27?? :wtf:

what kinda of reflector are you using? are you running a carbon scrubber?

Im using a wannabe a-wing reflector. it came with the ballast and bulb.. atm im not using a carbon scrubber ( scrubber = filter?) cus thers no smell atm.. only 8 days old..