joe-grow's first grow

[blue_ox]

blue_ox - what kind of venting are you using? I was told, using the fan that I picked up, that temperature inside the tent shouldn't be more than ~9F than room temperature, but that was just the 600w lamp. I've since picked up a T5, which I'm thinking of using for side lighting, once I switch to flowering and put the HPS on top.

I am also, considering switching to a cabnet, instead of the HydroHut. I figured a cabinet would be a little more stealth, but I'm still on the fence. I need to make a decision after this week. How do you like the tent so far?

I'm using Can-Fan RSS4HO 178cfm 4" with a Can 9000 filter, the hydrohut mini is only about 60cf so that should be enough for a 430w hps and a
200w cfl.

thats 600w total = 2049btu/hr or 3.412btu per watt
( http://www.infinitepower.org/calc_watts.htm )

A simple rule of thumb for calculating cooling flow requirements is:

CFM = 3.16 x watts/allowed temperature rise (°F)

This calculation only represents required airflow, not the fan rating. It is a conservative number because there always is some radiated cooling and turbulent flow within the chassis that can help remove heat from components. In a well-designed chassis, one can count on getting only 40-50% of the free airflow rating for a fan. Thus, a 300W system with a 20°F temperature rise would need about 47 CFM through the chassis or a fan with a free air rating of 100 CFM.


ok if security is needed then cabinet's are a good way to go .. lockable and
able to be in the open ... a hydrohut is not good for that.

take care man

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:stoned: