Help with 4x4/4x8 CMH set up questions

[Aviatorshades]

I have 2 315w cmh. Would it be better to put both in a 4x8 and only use about 6’ of my 4x8 and 2’ be empty or should I use two different 4x4 tents with one single cmh in each tent? Or does it even matter?

My legal state we are limited to 5 maturing

 

[Herb & Suds]

LOL
Congrats on getting dual cmh's
If you are vegging with them as well I would use the entire space and and manifold the five
Welcome to growing legally

 

[Aviatorshades]

So they will be fine for a 4x8? @Herb & Suds

 

[Herb & Suds]

So they will be fine for a 4x8? @Herb & Suds

Its a space big enough to learn in ...so why not use it
just locate both lights three feet apart and fill the bright area
It is not enough light to fill the tent you would another 1 k at least or two more cmh but then come the heat issues

 

[Aviatorshades]

@Herb & Suds i had those two in a 4x4 and they did great. Can I expect the same yields in the 4x8? I was hoping that they would just have some more space between and less crowded but if that’ll hurt yields I’ll have to rethink

 

[TintEastwood]

Herb touched on it....Be sure to plan for temp and humidity management.

 

[Herb & Suds]

@Herb & Suds i had those two in a 4x4 and they did great. Can I expect the same yields in the 4x8? I was hoping that they would just have some more space between and less crowded but if that’ll hurt yields I’ll have to rethink

I think , I would use the 4 by 8

 

[OldMedUser]

Invest in a light rail with a hanger kit to hang the two lights inline and use the whole 4x8 space. Then get a T-5 to veg in a 4x4.

Do you already have the tents? Budget?

 

[Aviatorshades]

I already have the tents yes. I just mainly wanted to know if the two 315 cmh would yield similar results in a 4x8 as they did in the 4x4. I plan on hanging a reflective thing so it drapes down from the ceiling to help reflect lights. So essentially inside would be a 4x6

 

[Aviatorshades]

So am I safe to assume every one is saying use the 4x8 and forget about doing two 4x4 tents with a single 315 in each 4x4?

 

[Herb & Suds]

So am I safe to assume every one is saying use the 4x8 and forget about doing two 4x4 tents with a single 315 in each 4x4?

You are going to be facing much greater concerns as you learn tent size has little to do with yield
If you want a staggered harvest then use two tents

 

[Aviatorshades]

My 4x4 yields have been great. They just always seem real squished together. I do uncle Ben topping and a manifold for my plants. Works great. Just 4x4 seems limited on space.

 

[OldMedUser]

What are your growing conditions like? Did you have heat issues in the 4x4 with the two lights going? If not then you'll be fine in the 4x8.

My grow room is in a cold basement/crawl space so with only one 400W HID going my heater has to kick in once in a while to keep the temp at 75 even during the summer. It takes two of those or a 1000W going to get the exhaust fan to kick in from too high a temp.

I'm vegging some plants under a 400W CMH in a spare bedroom now and with summer on the way it's already hitting 80F in there with the window open. I don't have an exhaust fan in there so it's passive ventilation. Impossible to keep my RH up over 30% even with the humidifier going as long as the window's open. It's only 14% here in the mancave atm.

You should get better yields with the plants spread out a bit.