Building a sealed room from scratch...

Ok so i have read up on a lot of info on this site and for security and yield reasons i think that a sealed room is the way to go...

Problem is i dont know how to do it

I have recently bought a 9000btu portable air conditioner for my bedroom to keep temps down in summer and im just thinking why dont i get a big tent with 4 x 600w in air cooled hoods and a more powerfull air con unit to cool it all.

At the moment im only using one 600w in a cool tube in a 120cm x 120cm tent

But we all know how long it takes to grow mary jane so bigger room = bigger harvest

Id ideally box it all up with 6" loft insulation and plasterboard for no heat signature

Im just wondering what type and size of air conditioning unit i would need for 4 x 600w in a 240x240x200 tent and how i would hook it all up

Your help riu brothers is (as always) appreicated

Peace

Well a watt consumed yields a given quantity of heat, (hps, fluorescent; it doesn't matter), so all I'd think you need to do is to total up the watt hours of consumption, (a 1000 watt light system operating for one hour will consume one kilowatt-hour of electricity). Once you have that info, call an a/c sales place and ask their recommendations for a unit to cool that space.

well i have read that you need approx 4500 btu's per 1000w light

and i have also read that its approximately 2000 btu's per 600w light

considering i have a 9000btu portable ac unit getting delivered soon that could possibly cover the 4 x 600w?

All lights will be air cooled in sunlight supply magnum xxxl's

Im just wondering how i set it all up as i know that the a/c puts out some heat too but i have heard of people building boxes round the back of the a/c etc

If anyone with some experience wants to chip in id love to hear from you

If it is a single hose unit then remember that no matter what, as long as it is running you will be loosing air from the room via the exaust hose (likely stinky air). you can have all your cool tube exaust and ac exaust running into a room/box that houses the carbon filter and the ballasts which will clean the ac air and also keep temps down. Also if you do not have an intake on the tent/room the ac will overheat. If you are running air cooled lights you can reduce the amount of btus by about 30% from what i have read. Also dont spend your $ on loft insulation Just use some Rmax and line it with ifared film if you are worried about the ghetto bird.

The only sealed room i have seen in action is on Jasons channel on youtube "wood to weed" where basically the air cooled reflectors get air pushed or pulled through them from an adjoining room and up and out through the roof of the insulation.

This is so that that air never makes contact with the room.

The guy has a separate air conditioner inside to cool the room and this exits up through the roof via the hose

Its a room within a room but im guessing all that exiting heat has still to go somewhere?

Ive heard that an a/c unit exhaust coming out your window is a lot less suspicious that venting your air cooled lights directly outside (less heat and some water?...)

The way im planning on using it just now is to just sit the ac in the room next to the tent with the hose exiting the window, passive intakes on the tent, and the exiting cooltube air going out the bedroom and into my hallway

Would it be possible to get a tent with 4 x 600w lights (all air cooled), box it all up with loft insualtion and sit my portable a/c unit inside to cool things down?

Would i need a passive or active intake so that the a/c doesnt overheat?

And would it be ok to pull all 4 lights through the one fan with a large carbon filter attached inside?

Really need some help guys...

anyone.....................

whitewidow2 said:

anyone.....................

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I think you are asking for too much. There's a limit on how much info people are prepared to give you.
Looks like you will just have to do it the old fashioned way. i.e trial and error.

thanks for that airwave - i see you are prepared to contribute nothing

and as for asking... i see not harm in it

this is one of the best places to ask... no?

whitewidow2 said:

thanks for that airwave - i see you are prepared to contribute nothing

and as for asking... i see not harm in it

this is one of the best places to ask... no?

Click to expand...

Unless you're going to get those questioned answered, then no, it isn't the best place to ask. Obviously.

Dont you worry airwave - ill get my answers, but thanks you have been no help whatsoever.

Not necissarily Bio... Weekends on riu are almost always slow. However im here. My room is sealed and running 2 600w hps. 5000 btu AC unit on full blast and i do vent the smell out of the chimney stack because i tell you why. The smell will permiate any building material or plastic poly, sheeting. Its just something you got to be prepared for. I run a 4" carbon filter and an ozone gen+ timed bathroom sanitizing sprayers one in the basement and one upstairs.

I built this room from scratch with locally bought materials. Ive got about a few thousand dollars in it. And im still not done lol. Heres a few pics.


This is after my 2nd grow. I remodeled the entire room and plywood sheathed the ceiling and walls.
That pipe coming out of the ceiling is a fresh air intake which is blocked off at the moment because im AC cooling.


Heres the left side of the flower room. That pipe is the rooms exhaust ducting built into the ceiling and is completely invisible outside the room. Its important to have good room intake and exhaust for growing in dif seasons. For instance in the winter i dont run AC and i use fresh air from outside to cool the lights. The exhaust filters the ganja odours and dumps the rest out the chimney.


That the veg room on the right. Its sealed from the flower room and has its own air intake and exhaust.

OK so that cover the basics heres a few pics of it up and running.








growing clone mothers for my outdoor grow. multiple strains




And heres my mothers now in flower week 3. I took this pic a few days ago. I am only able to run 1 600 at the moment because its been really hot outside already this spring. both 600 watters overwhelm the lil ac unit. I need cool hoods just vant afford em at the moment. Anyways i hope ive helped you with atleast a few of your questions. ive got hundreds of pics in my albums. Check em out peace 1BMM

whitewidow2 said:

Dont you worry airwave - ill get my answers, but thanks you have been no help whatsoever.

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lol thats funny...

Masonman glad you could pop along....

Loving the pics, seems you got some good things going on - yeah this weather is affecting things - im hoping once my little portable comes it will even things out

I see you have the back half of your a/c unit outwith the grow environment, i have seen people box up the back of their a/c units because of the heat and have it exit with the heat from the hose

I take it the reason only half of it is in is because it gets hot at the back?

Do you have any intake for that big room and is it passive or active - looking good

whitewidow2 said:

Masonman glad you could pop along....

Loving the pics, seems you got some good things going on - yeah this weather is affecting things - im hoping once my little portable comes it will even things out

I see you have the back half of your a/c unit outwith the grow environment, i have seen people box up the back of their a/c units because of the heat and have it exit with the heat from the hose

I take it the reason only half of it is in is because it gets hot at the back?

Do you have any intake for that big room and is it passive or active - looking good

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Yes WW i have the back of the AC outside of the growroom. Its hidden under an old work bench. From the outside of the room you wouldnt know jack shit. Cant smell nothing see anything suspicious. I built this room with the paranoia that the popo may want to search my crib for an old aquaintance of mine. Which they have 3 times and never found him. I fucking snapped on the pigs and they never came back since. So as i said its super stealth. This winter it will be a full blown hydroponic lab. Its just to hot to be flowering 15 plants. I grow shit outddors in this weather.

Back to the AC it drips water so i have to keep sopping puddles up everyday. Its a bitch. The condensor freezes up when its humid and i have to shut the AC off for a day to thaw the it out.

Do you have the space and privacy to construct a room WW? It can get expensive. But if your handy you can pull it off. peace 1BMM

https://www.rollitup.org/grow-journals/304074-1badmasonmans-3rd-grow-1st-journal.html Heres my remod Thread. check it out bro.

whitewidow2 said:

Dont you worry airwave - ill get my answers, but thanks you have been no help whatsoever.

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There is a difference in AC units. You have a portable unit with an exhaust hose right? See, those are not the type of unit you want to use with a *sealed* room. They still need fresh air and exhaust. Now, a window A/C unit or a mini-split system is a true A/C system. The hot air coil is outside and the cool air coil is inside and the air does not need to circulate between the two.

Lights take alot of BTU's to cool off and a cool tube setup drawing fresh cool air from an exterior room and exhausting it outside the grow room is helpful for heat management.

It definitely does not cost $800 to run 2 1000 watt lights. He mentioned AC & Fans and I wonder if something was malfunctioning or not working to specification. I am at less than $300 for 2 1000 watt, minisplit A/C, dehumidifier, 2 fans, 250W lamp for mother chamber, 2 centrifugal inline fans for lights, etc. + everything else in the house.

I didnt say it cost $800 to run? I said i got a few thousand invested. Tents are fine. I am talking 100% design build. My elctric bill runs $150 per month almost always.

So the way im planning on using mine is sitting it in my bedroom near my grow tent to cool things down

But i wouldnt mind building a sealed enclosure with a large tent inside all insulated and ac to cool it

would i have to have the ac unit inside the tent?

would it need to be half in and half out as the back gets warm?

a split unit isnt really practical for me due to my location but i could do a dual hose one?

would the ac unit i have on order work and how would i go about setting it all up

thx

I run sealed and its tricky. Sealed isnt that hard once you get it dialed in tho. My setup is in a closet and basically cool air comes from another room to cool the lights and exits to the attic. I run a dual hose ac the same way. Appx 4000btu per 1000watts. Then I setup a dehumidifier which imo is manditory. Seal the door as good as you can. It doesnt have to be air tight, besides when you run a dual hose ac your gonna have neg pressure. Oh and throw in a carbon filter and fan. Run that just standing in the room. Oh and the most important piece co2. I use tanks because generators cause to much heat for my small space. There will be some trial n error as all spaces are unique.