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Offlinehamloaf
Biometric Precursor.


Registered: 10/21/13
Posts: 193
Loc: Back in the USSR. Flag
Last seen: 5 months, 2 days
Re: Grow box in my attic Is there fire danger between hps and t5 [Re: Peardu]
    #694079 - 11/17/13 12:01 PM (11 years, 1 month ago)

Nah, the only way that 150 watt HPS has a remote chance of catching the insulation in your attic on fire is if the insulation makes direct contact with the bulb and is held there. 

Either to both lamps will be fine in an enclosed wood growbox.  Just be sure to construct and install an air intake and exaust with the ample air moving equipment to remove the excess heat from your growing area.  Multiply lenght by width by height to find the CFM of your growing area and get a fan rated to remove that amount of CFM's.  I'd go with a fan that moves a hundred or so more CFM's than what your growing area calls for.

I like the fact that that you noticed that those things can be built at a fraction of the cost than what you can buy them for already constructed.  Plus the builder is able be customize according to said builders wants and needs.  +5.

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