Get Your Ducts In A Row Thread Closure ? Why ?

Flo Grow

Well-Known Member
Wondering why this thread was closed ?

Sub, you're my dude and all and I know you said you're a 3rd Generation HVAC so why would you post a pic with a 180 degree bend (mixed elbow with flexible AND rigid duct) then say there is NO air restriction ?

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I'm not here to start any BS, so let's get that out the way.
The concern here is HVAC facts and proper ventilation in our grow rooms.
EVERY bend/elbow, be it 30, 45, 60, or 90 degree causes an increase in air flow restriction with every increase in degree.
The effect is basically potentiated as a grower keeps adding elbows.
And the type of ducting used can add to that as well
, ESPECIALLY flexible ducting, even if it is running in a straight line it can cause an 50% restriction alone.
Unsupported flexible ducting again, adds to the problem, and you have plenty of that in your pics.
Reducer aid in restrictions too.
Anyone can go to dozens of HVAC websites, and they preach over and over about elbows restricting air flow and that flexible ducting is the least efficient.
When a home/resident is built, they are allowed only so much feet of duct work per law and regs for the point of safety (25ft total is usual standard).
For every elbow attached to said duct work, the HVAC tech HAS to reduce the actual ducting to accomodate those laws and regs so they don't go over the mandatory maximum length.

NEVER restrict the duct size. The single blower unit (B100) requires 6" round duct or equivalent (28 square inches), and the dual blower unit (B200) requires 8" round duct or equivalent (50 square inches). When combining multiple duct runs together, the square inch area must reflect the total square inch area of the ducts being combined. The proper method of combining two ducts is shown below.

Do not use flexible or corrugated duct. This type of duct will restrict air flow and reduce performance. Only use smooth galvanized metal duct.

Make the duct run as short and as straight as possible with as few turns as possible. Avoid sharp angled turns. Instead, use smooth gradual turns such as adjustable elbows or 45 degree angled turns. Air must not be restricted at the end of duct run. Do not use screen wire or spring loaded doors on wall louvers or roof jacks. Do not terminate vent into an attic or chimney. The hood must be ducted to the outdoors.



The pic showing " improper combining of two ducts" is what you have, and you also have more connections (on both side) than what they display :


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Not saying your rooms aren't working, because we all know they are.
But they're not connected and therefore working as efficient as a 3rd Gen HVAC should have them.

Just very surprised and had to ask.
I expect some hardcore "followers" to possibly get flamed by this simple discussion.
And that's all this should be.
Has NOTHING to do with buying your gear either, because I own plenty and will continue to be a TGA supporter.
But we are all here to learn, even if that means questioning the teacher.


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Gartner

Member
Great information, thanks, even i did a mistake as, i got huge noice from my duct, i thought its because of the fan,
once i removed the bend in the ducting, the noice reduced to a huge level..
Thanks again.. mainly for the pics....
 

Flo Grow

Well-Known Member
Thanks Gartner !
Glad you found what wasn't efficient.
I grow in a tent, and have nothing like Sub in terms of grow space.
Yet, after multiple attempts to get MY tent dialed in with temps and air flow, it finally took me trying something that I thought would not work.
NO ducting in my tent and no glass lens on my Sun System Yield Master II Supreme 6 inch air cooled hood.
My 6" CanFan sits outside and on top of my tent venting/exhausting my tent straight up into the attic via 3ft of Semi-Rigid ducting that's also wrapped in insulated pipe wrap.
The straight flexible ducting I had previously, still wasn't efficient PLUS it gave off serious radiant heat of over 100F.
Once I installed the semi-rigid ducting it was still 92F.
Put the insulated pipe wrap on from top to bottom, and now my radiant heat from the ducting is 78F !
I use 2 open flaps in my tent for passive intake, and I can get my canopy within 6 inches of my Horti 400w.
And yes, noise is to a minimum like your now.
I use a digital infrared thermometer to read radiant heat in my grow.
My own flesh radiates more heat than my ducting and hood does ! lol
I'm talking 88F - 89F too.


My digital infrared thermom
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subcool

Well-Known Member
I closed the thread because of post like this
I said all I have to say about venting simple.
I think my point was clear about having as few restrictions as possible.
I maintain 74 temps year round in all 7 of my work rooms,
My point was use fittings and straight duct as much as possible.
So the only point of this thread is to point out I am not prefect I think I have pointed that out often enough myself.
Sub
 

Flo Grow

Well-Known Member
I would first like to say, thanks for the reply bcuz I didn't expect you to in all honesty.
As stated earlier, this was NOT created to harrass you or point out your imperfections as you inferred.
The questions are and remain legitimate questions.
You pride yourself on your 3rd generation HVAC lineage and point that out to people, so don't get ruffled if someone calls you out or questions why you are doing something that someone with YOUR expertise shouldn't be saying nor doing.
Although you say your point was to have as few restrictions as possible, you didn't make that clear nor display it with your pics.
You show a 180 degree bend in duct work, claiming "NO" restrictions when every other HVAC website and science, says otherwise.
And I/we know your set up is still running good, bcuz I said that too !
But how much MORE would it be if you/we TRULY avoided alot of the contradictions you SHOWED.
You're obviously bothered by a simple request for further explanation.
The "do as I say and don't ask questions" parent mentality is the stance you're basically taking.
Next, I expect some more flippant remarks and then this thread being locked/closed by you or another mod.
INSTEAD of having an adult conversation.
I wish you nothing but blessings Sub.
I followed you to BBay and started growing again bcuz I liked what you were/are doing and love your gear.
But your over sensitivity every time someone "questions" you, even politely and in a adult manner, get's to be pretty annoying as well.

p.s. Happy Belated One Year Wedding Anniversary to you and Mz Jill !!
I mean that sincerely too.
I miss seeing her pink fonts on the forums !

 

xebeche

Well-Known Member
Beating a dead horse here? Why, I wonder?

He wrote, "I maintain 74 temps year round in all 7 of my work rooms," and your reply is" But how much MORE would it be if you/we TRULY avoided alot of the contradictions you SHOWED"? Sounds to me like he doesn't need "MORE" of anything.
 

subcool

Well-Known Member
I will do my best.
In my 30 years in the HVAC field I have seen some pretty messed up designs and they still work.
The sweep your making such a massive deal about is less that 6 feet long and the elbo makes a huge diff in the static passing through that joint.
Everything is over sized and air flo is amazing
You can deff do a better job and spend even more money on fitting

If I am over sensitive after a decade of the same questions over and over again then so be it.
I don't even know what your asking to be honest? can it be done better yes? Would it greatly improve air flow this grow room? No I am not concerned about Noise like I would be in a HVAC system I have plenty of force.
The whole point of the tutorial was not to run 4" flex all over the place like most people do but put some time into the design like we obviously did.
To close I am under zero obligations when it comes to teaching its just something I used to enjoy.
If your trying to impress people with the fact your smarter than me thats not hard either I flunked out of 8th grade.

Sub
 

Flo Grow

Well-Known Member
Beating a dead horse here? Why, I wonder?

He wrote, "I maintain 74 temps year round in all 7 of my work rooms," and your reply is" But how much MORE would it be if you/we TRULY avoided alot of the contradictions you SHOWED"? Sounds to me like he doesn't need "MORE" of anything.
I expected someone looking to score brownie points with Sub to respond.
But in all ADULTHOOD, he's a grown man that can converse for himself.
Converse.
He can do it in a PM and that would be fine with me and between US.
But in your effort to lick nuts, you clearly don't see the contraDICKtions either.
Fall back and take a seat if you're not here to do the same.
And that's an equal opportunity response for others who feel the need to try and take it there as well.

One person was already man enough to say, hey you're right and I too fixed my problem.
 

subcool

Well-Known Member
I expected someone looking to score brownie points with Sub to respond.
But in all ADULTHOOD, he's a grown man that can converse for himself.
Converse.
He can do it in a PM and that would be fine with me and between US.
But in your effort to lick nuts, you clearly don't see the contraDICKtions either.
Fall back and take a seat if you're not here to do the same.
And that's an equal opportunity response for others who feel the need to try and take it there as well.

One person was already man enough to say, hey you're right and I too fixed my problem.
Yes your a genius please please continue I would love for someone to take my place why not do a detailed thread with your own pictures and set up and then post that info up on this site and like 15 others that way everyone will have the correct info and you will be a true hero to all. You can even use my picture to illustrate the wrong way to do it that way people will be able to see the right way and the wrong way.

Maybe you can get your own forum here and host it day after day helping tons of people.

Meanwhile I will take a vacation hehe

On a Serious note smoke a bowl dude!

Sub
 

TruenoAE86coupe

Moderator
Laws and rules are meant to be broken, he obviously has his set ups on lock down. Try to accomplish what he has, it is much harder than he makes it seem. I am not in particular a Subcool supporter, don't have anything against him either and could only dream of accomplishing what he has.
If it works why fix it? My air cooled hood on a mover breaks every rule out there, looks like hell but works great for me. To each there own, if he has asked if this would work i would probably said no, but he designed it for his system, and it works, thats what matters nothing else.
 

Flo Grow

Well-Known Member
I will do my best.
In my 30 years in the HVAC field I have seen some pretty messed up designs and they still work.
The sweep your making such a massive deal about is less that 6 feet long and the elbo makes a huge diff in the static passing through that joint.
Everything is over sized and air flo is amazing
You can deff do a better job and spend even more money on fitting

If I am over sensitive after a decade of the same questions over and over again then so be it.
I don't even know what your asking to be honest? can it be done better yes? Would it greatly improve air flow this grow room? No I am not concerned about Noise like I would be in a HVAC system I have plenty of force.
The whole point of the tutorial was not to run 4" flex all over the place like most people do but put some time into the design like we obviously did.
To close I am under zero obligations when it comes to teaching its just something I used to enjoy.
If your trying to impress people with the fact your smarter than me thats not hard either I flunked out of 8th grade.

Sub
Point taken and I understand now bcuz I/we couldn't see all that.
No more to say or debate.

Laws and rules are meant to be broken, he obviously has his set ups on lock down. Try to accomplish what he has, it is much harder than he makes it seem. I am not in particular a Subcool supporter, don't have anything against him either and could only dream of accomplishing what he has.
If it works why fix it? My air cooled hood on a mover breaks every rule out there, looks like hell but works great for me. To each there own, if he has asked if this would work i would probably said no, but he designed it for his system, and it works, thats what matters nothing else.
You make a valid point too, Trueno, and I too am "skinning the cat" in a untraditional way so I understand where you and Sub are coming from.
 

Flo Grow

Well-Known Member
Yes your a genius please please continue I would love for someone to take my place why not do a detailed thread with your own pictures and set up and then post that info up on this site and like 15 others that way everyone will have the correct info and you will be a true hero to all. You can even use my picture to illustrate the wrong way to do it that way people will be able to see the right way and the wrong way.

Maybe you can get your own forum here and host it day after day helping tons of people.

Meanwhile I will take a vacation hehe

On a Serious note smoke a bowl dude!

Sub
Really unnecessary, but your usual adolescent response when pissed.
That wasn't even directed toward you to begin with, so don't try to divert attention elsewhere while you escape to vacation.
I'm not trying to be you and gain/surpass you tremendous accomplishments.
It was a question using your own facts.
The problem is it's hard to discern the other persons tone, and we all too often impose OUR interpretation/misperception.
I got love for you dude, so have some Vortex with me in spirit and let's all stay friends.

 

subcool

Well-Known Member
All sarcasm aside I was being serious dude you are obviously educated and articulate you should pick up my torch I am obviously getting burnt out on this forum thing someone has to keep doing it how will the newbies learn?
For a few seconds just imagine how many post I have answered over the last 10 years :)

Sub
 

Flo Grow

Well-Known Member
All sarcasm aside I was being serious dude you are obviously educated and articulate you should pick up my torch I am obviously getting burnt out on this forum thing someone has to keep doing it how will the newbies learn?
For a few seconds just imagine how many post I have answered over the last 10 years :)

Sub
WTF ?!
Seriously, Sub ?!
I don't think I am ready for that.
I help where I can and I really enjoy it too, but I don't think I'm worthy of such a honor by you or anyone else.
Most knowledge has been gained from listening, watching and just keeping my mouth shut until I was ready to help where I could and can.
My writing skills are no where near yours.......well maybe, but not growing and picture taking for sure !! lmao
I had to pop some hunor in there.
I told PotRoast I wouldn't mind being a mod, and that's some serious responsibility AND accountability.
We'll have to see.

Thanks for being a gentleman about all this !!!!
We both/all know how ugly it could have turned out.

Good grow vibes to you brotha !
Stay up and stay safe !!
 

Unnk

Well-Known Member
this just makes me happy to see that people can debate not destroy each other


Raises a .2 bowl of Jack the Ripper Whipped BUDDER!
 
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