Grow room questions

[Dutch Pimp]

Thanks, for the info-advice, guys.

[televisor]

I believe I'm going to build a small "light board" on a thin piece of wood, lined with 6-8 receptacles for CFL's for the lighting. Someone suggested a CFL setup for the VEG stage and then using an HPS light for the Flowering stage. My question is since I've been able to find high wattage 105w etc, CFL's in all light varieties, i.e. full spectrum, daylight, and warm... could i just use the light bar i'm building and just swap out the CFL's from the veg to flower stage? Or should I still invest in the HPS for the flower stage? All thoughts appreciated!


P.S. Anyone tried these? Could the air purification be significant enough to help a growroom? http://www.1000bulbs.com/products.php?cat=Air-Purifiers

[dion]

hps for flowering is inarguably better. but instead of cfls i prefer 4' flouro tubes.

btw flex hose to manuver around the duct is fine. im sure you know how to make an air tight seal. mind you that insulation is going to be key in your ability to control your environment and conserve your energy costs. if you make holes, make them airtight.

[BOYZNUS]

I'd planned on insulating with r38 around the walls and then placing drywall up.

Do you realize that R38 fiberglass is about 11" thick? Thats some pretty thick wall framing you have there. As an insulation contractor, I can tell you that R-11 is 3.5"(2x4 framing) and R-19 is 5.5" (2x6 framing). Even if ya cram it all in the framing,, you will only end up with R-11 or R-19.

good luck

[televisor]

Boyznus: Yeah, the R38 was between the ceiling of my grow room and the hardwood floor of my main floor. I only have R-13 in the walls. R-13 in the walls surrounding the actual grow room, and then R-13 in the walls surrounding the "tool shed" room front. As smell is the major concern, my only issue left is the exhaust, which helps now that I've confirmed that flex hosing is ok, (thanks Dion!) ... i'll likely do a home made carbon scrubber for the smell?

Another Q on the lighting, I see where Cool Cfl's are the way to go for Vegging stage.... so should I stack only cool CFLs in my light bar or is there a benefit to throwing some warm lights in there also?

Great help so far all, thanks a million!

[mobay]

http://greenmanspage.com/guides/growbox.html
hope this will help you on your project.