400 watt hps, open basement, need vent or fan?

johnlauriaFebruary 27, 2014

This is my first attempt at using a hps system, I am hanging the light in a open basement, the rear and the sides will have reflective walls but the front and ceiling area will be open. Will I be ok with a small oscillating fan to move the air? or will I need to further vent to control the heat? I'd like to avoid running duct work, just uncertain of the amount of heat im going to generate. I have a plug in thermo stat for the fan but the wattage is low so I could run it off the lights timer for constant air circulation

Thank you for reporting this comment. Undo
dcarch7

400 w x 3.4 BTU = 1360 BTUs

No you don't need to do anything.

dcarch

    Bookmark   February 27, 2014 at 8:33PM
Thank you for reporting this comment. Undo
johnlauria

Thanks, That formula is very handy. I'm still going to run a small fan for circulation but that saves me from having to get fancy.

    Bookmark   February 27, 2014 at 10:50PM
Thank you for reporting this comment. Undo
dcarch7

If you have an electronic ballast, make sure it is well ventilated. Or it can be fried.

dcarch

    Bookmark   February 28, 2014 at 8:29AM
Thank you for reporting this comment. Undo
cityfisher

None needed, unless in a grow tent. My setup is pretty open and i just have a fan going.

    Bookmark   March 4, 2014 at 1:47PM
Sign Up to comment
More Discussions
Energy efficient grow lighting
We are probably going to buying a nice heavy duty heated...
oldbat2be
When to replace lights?
Hi, I have a 3-shelf cart with plant lights. I mostly...
frances_in_nj
More beautiful plumeria blossoms under grow lights
More proof that grow lights work! I planted this plumeria...
arctictropical
Lots of seeds - Please help me get started (Zone 6A)
I went a little overboard with a couple of seed orders...
oldbat2be
Correcting Lighting Later?
Hello, I am germinating Palmer amaranth for an experiment...
Tigger033
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™