Extraction Fan

Hello,

This is the Information on my current grow tent below the EXTRACTION ADVISE is the extractor fan i should be using in the tent but the people i bought the tent from only gave me a TT100 Fan but i have another TT100 fan aswell can i use both of them as an extractors to get the temps down to average?.

If i put my temp gage where it is on my picture it's good temps is it ok to stay there to get the correct temps?.

This is the information on the fan they have sent me

http://www.amazon.com/Inline-Fan-TT100-115CFM-Speed/dp/B00374RJG4

Tent Configuration Advised

UE REF - DS120
UE DESIGNATION - Dark Street II 120x 120x 185 cm
REV - R2.50

EXTRACTION ADVISED

FLAGE - 125MM
EXTRACTOR - 1
FLOW M3/H - 220 M3/H
SOCK MM - 200MM

Adding the second one can't hurt if you think it's not venting enough. I saw this before in a professional grow room, guy says adding a second one will not double air flow but increases it about 50% or so.

is my temp gauge ok where it is?

i have moved my temp gauge is this ok for the accurate temp reading

Better to have it and not need it, than to need it and not have it.... Also, from the ad, I did see they had two speeds but no exchange ratings. Air exchange is important as well as regulating temps and your fans help in both these areas. Make sure you have passive inlets open for the air to be pulled in.

As far as the temps... both areas appear to be with in the correct range. I have meters in a couple places in my grow room.

its away up to 89.1F

I saw between 73 and 79... What exhaust rating is your fan?