Club 315w lec

thccbdhealth

Well-Known Member
Can someone please explain the use of flexible insulated ducting, my understanding is that solid pipe, ridged, is far mpre effective yet all i see in peoples pictures is flexible. The difference in resistance is 3-1. 10 feet of flexable is the same resistance as 30 feet of ridged , From what i was tought while doing hvac installs in new residential construction
 

ttystikk

Well-Known Member
Can someone please explain the use of flexible insulated ducting, my understanding is that solid pipe, ridged, is far mpre effective yet all i see in peoples pictures is flexible. The difference in resistance is 3-1. 10 feet of flexable is the same resistance as 30 feet of ridged , From what i was tought while doing hvac installs in new residential construction
You're absolutely right and most growers get their ducting from the hydro store, don't know better and that's what they end up with.

You should see all the noobs pushing cooling air too, lol
 

thccbdhealth

Well-Known Member
Well I am a Newb By All Account's So;

You should see all the noobs pushing cooling air too, lol ?
by that statement, do you mean they are having the filter and fan mounted together, then all the ducting- - rather then having the filter, some ducting, then fan on the end of all the ducting
What about the principle that's it always easyer to push then to pull?
What would be the best setup with ridged ducting.

or are you meaning intake fans, rather then natural draft threw ports creating a vacuum and pulling out the moisture from the tent
 

ttystikk

Well-Known Member
Well I am a Newb By All Account's So;

You should see all the noobs pushing cooling air too, lol ?
by that statement, do you mean they are having the filter and fan mounted together, then all the ducting- - rather then having the filter, some ducting, then fan on the end of all the ducting
What about the principle that's it always easyer to push then to pull?
What would be the best setup with ridged ducting.

or are you meaning intake fans, rather then natural draft threw ports creating a vacuum and pulling out the moisture from the tent
Pushing air compresses and heats it. MUCH better to draw cooling air than push it.
 

DemonTrich

Well-Known Member
2400 from sunplix (remote ballasts only, not the new style knob adjustable/od type)

9 ballasts
9 bulbs
7 adapters


Waiting to hear from nanolux with a quote, but with the Phillips 21837 CDM-T9-ELITE bulbs x 7, like above.

I'll post the price when I get it
 

Javadog

Well-Known Member
One of things to remember about ducting...(tho I am forgetting! :^) is that
bends equal extra distance.

"For example, each elbow used is equivalent to 30 feet of straight pipe or duct."

Ah, here
 

DemonTrich

Well-Known Member
Pushing air compresses and heats it. MUCH better to draw cooling air than push it.

I do a push/pull thru both sets of hoods in 2 rooms. I also run seperate intake/exhaust and scrubbers not in line with my hood set up. Both veg and flower have 2x8" 720cfm.
 

DemonTrich

Well-Known Member
Yes and no

315 uses 2.6a
600hps/Mh uses 4.5

315 have much better par, avb and light output comparable to the sun vs mh/hps.

315 put out less heat, therefore less work your ac has to do.

Light penetration is about the same for both.
 

thccbdhealth

Well-Known Member
is it plausible to yield a pound off a 315 as you would off a 600 in a 4x4 - better spectrum, better flowers, more cbd production, half the power consumption, But is the yield there
 

Evil-Mobo

Well-Known Member
is it plausible to yield a pound off a 315 as you would off a 600 in a 4x4 - better spectrum, better flowers, more cbd production, half the power consumption, But is the yield there
I think with a long veg time yes. My first plant ever was a northern lights vegged for 8 weeks and in a 3x3 by itself under a 315 LEC I could have easily had two plants it's size in there so double the yield.....?

It gave me a 1/2 p dried and cured.......
 

DuganNash

Active Member


So it's just about equal price to outfit this room with 12 - 630w CMHs in 4x4 vs 20 - 315w CMHs in 3x3. The 630w variation would technically get me 12sqft more canopy and around 1000w more overall, but go over the recommended 3x3 footprint with potentially more light crossover. The 315w variation is the exact opposite. Do you guys think at this point it's nitpicking and both would yield similar overall results?
 
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