I have a little shed outside measuring 4'x4' and 6'high. I plan on using a 400w ballast which can take both halide and sodium. I will properly insulate and lightproof first.

I am just unsure on ventilation. I am presuming that because i am outside i will experience less heat (i'm in the UK!) but am aware that i will still need some fresh air passing through. I guess i am just unsure on how much heat a 400w sodium bulb produces and am really confused on fans and filters etc.

Can i get a fan which both exracts the air inside and intakes fresh air from outside????

Basically can someone advise me on what ventilation set up would be required on a room this size, bearing in mind it is an indoor setup outside (if you catch my drift)

Any help greatly appreciated, i have done my research but can't seem to find the answers

Cheers,

TB :smokin:
tripleblack Reviewed by tripleblack on . Help me set up...please guys :( I have a little shed outside measuring 4'x4' and 6'high. I plan on using a 400w ballast which can take both halide and sodium. I will properly insulate and lightproof first. I am just unsure on ventilation. I am presuming that because i am outside i will experience less heat (i'm in the UK!) but am aware that i will still need some fresh air passing through. I guess i am just unsure on how much heat a 400w sodium bulb produces and am really confused on fans and filters etc. Can i get a Rating: 5