Help with twin 10x10x8 rooms 4k each HVAC HELP

[Jonny Lan]

Hi folks. Got two 10x10x8 rooms. Im planning on running 4k in each 4(1000w lights) and I'm trying to figure the best way to do it.
*LEGAL GROW*

there is a window in each room. one faces the street with other houses across from me and one face the backyard which leads out to a forest.

The property is owned by family so i can make 1 MAYBE 2 holes to the roof if needed.


This is what i was thinking of doing. (mimicking for both rooms)
Having this filter in the room:

http://canfilters.com/filters/can-filters/can-filter-150.html

This filter apparently has a max exhaust of 1260cfm, than hook it up to either a 10" fan rated at 1060cfm or a 12" rated at 1760cfm. ducting that air into the 4 air-cooled hoods using this method:

http://www.grozine.com/2014/02/19/setting-up-air-cooled-grow-lights/

then sending that air through the ceiling and directly out the roof.

oh and I'm going to put these on the doors so i have an entry for passive intake.

https://www.homedepot.ca/en/home/p....face-return-air-filter-grille.1000738535.html

Also there is central air with a humidifier and dehumidifier on it.

Thanks guys, Im really stoked to have this done for march 1st so i can get started.

Always Love,

JL

 

[mango420]

Your going to need intake fans for the rooms, passive intakes just wont cut it. That can 150 would be very overkill for your setup as well. Imo vented shades are overrated but some people like them. Congrats on getting your setup going!

 

[Medfinder]

if you can at least 18,000 btu per room

mini splits are pricey at 3 grand.

noisy window shakers must be 110 volt 14,000 btu and sealed tight.

whole house system should have zone damper's installed on ducting.

3 options as well as your venting to fresh air idea
http://www.homedepot.com/p/Haier-14...l-in-Dehumidification-Mode-HPN14XHM/204712086

 

[Phaeton]

5.6 K room with window cooling. Winters are daytime summers are nighttime.
A pair of 2500 CFM fans push air in from the windows, sealed pretty snugly. Air exchange rate is governed by opening and closing a a pair of vents from zero up to the same diameter as the fans. Always some positive pressure and intakes are screened.

This keeps a consistent 6 degrees F above ambient, hence the switch to nights during the summer. Hard to hold 86 when it is 91 coming in.

The central air will be rigorously tested, designed for the house it is built into, the garden could up the duty cycle to where longevity may be affected. I do not know your home's specs.

 

[qballizhere]

Running 4k vented hoods you will still need 3k btu of cooling for each hood. Not to mention the 10% loss from the glass. If you run open hoods you will need 6k btu of cooling per hood its going to be hard to get around not having ac with 4k hps. On average a hps light will raise the ambient temp 20 degrees.
Mini splits are not 3k each you can get a diy 24k btu for $1500 with shipping just look around.
Yes when you get above 36k btu they will be jumping in price or if you want multiple head units

If you are going to look at several portable ac make sure they have a inlet and a exhaust hose dont get just a single hose you are throwing money out the window since it is pulling air from the room you are trying to cool

 

[Floridian]

I have an 8 by 8 by 8 flower room and use 3 1K horties.A window kicker is a must to use in these situations.I use a 12.5 BTU but what is really important is to make sure it goes down to 60 degrees.The majority of them bottom out at 65.I also use co2 enrichment which means I can have an ambient temp of 80-85 degrees when flowering.

 

[Jonny Lan]

A lot of good suggestions

A lot of good suggestions

I agree with what most of y'all are saying, but if the portable a/c is in the room, its gonna vent out the smell through the window!

this is not going to be in a tent. its going to be plants in the open bedroom. i have a 14,000 btu unit i use now in a room with tents and its perfect. but can't fit a 10x10 tent in this 10x10 room.

i thought with an air exchange at least once a minute i wouldn't have a build up of heat? if I'm pulling in the air from the rest of the house which i will keep at 68-70f why would this not work?

Your going to need intake fans for the rooms, passive intakes just wont cut it. That can 150 would be very overkill for your setup as well. Imo vented shades are overrated but some people like them. Congrats on getting your setup going!

Thanks buddy, Im also going to be doing 6k in the basement which I dont need help setting up cause i have a lung room down there.
And dude the exhaust on the can 150 is 1260cfm that means it should be able to deal with the 800cf room well? thats a complete air exchange 1.5 times a minute. obviously going through the hoods and then ducting to the roof will reduce that but it should still be an air exchange at least once a minute no?

 

[Medfinder]

Running 4k vented hoods you will still need 3k btu of cooling for each hood. Not to mention the 10% loss from the glass. If you run open hoods you will need 6k btu of cooling per hood its going to be hard to get around not having ac with 4k hps. On average a hps light will raise the ambient temp 20 degrees.
Mini splits are not 3k each you can get a diy 24k btu for $1500 with shipping just look around.
Yes when you get above 36k btu they will be jumping in price or if you want multiple head units

If you are going to look at several portable ac make sure they have a inlet and a exhaust hose don't get just a single hose you are throwing money out the window since it is pulling air from the room you are trying to cool

off course diy is 1500 if you have a universal gas card for 22.. 410a.. and other gasses and a contractor's lic i've seen 875 for 18.000btu at ac/pro or other contractor supply houses.

room size geolocation ave temps and other factors for enthalpy so that there is an correct environment.

as far as portable units they do under perform and must be scrubbed.

Ive seen in cooler winter locations the scrubbed hot air sent through the ventilation system to heat the house although MOISTURE can be an issue

 

[Medfinder]

Running 4k vented hoods you will still need 3k btu of cooling for each hood. Not to mention the 10% loss from the glass. If you run open hoods you will need 6k btu of cooling per hood its going to be hard to get around not having ac with 4k hps. On average a hps light will raise the ambient temp 20 degrees.
Mini splits are not 3k each you can get a diy 24k btu for $1500 with shipping just look around.
Yes when you get above 36k btu they will be jumping in price or if you want multiple head units

If you are going to look at several portable ac make sure they have a inlet and a exhaust hose don't get just a single hose you are throwing money out the window since it is pulling air from the room you are trying to cool

off course diy is 1500 if you have a universal gas card for 22.. 410a.. and other gasses and a contractor's lic i've seen 875 for 18.000btu at ac/pro or other contractor supply houses EVEN ON AMAZON.

DO YOU HAVE GAUGES OR A VACUUM PUMP?
any split system may come pre charged but must be neg pressure and no oxy in the lines. depending on length of line run extra gas may be in order

Room size geolocation ave temps and other factors for enthalpy so that there is an correct environment.

as far as portable units they do under perform and must be scrubbed.

Ive seen in cooler winter locations the scrubbed hot air sent through the ventilation system to heat the house although MOISTURE can be an issue

 

[stoney917]

The DIY mini splits are simple they are precharged and screw together .... all Ya need is channel locks , no gauges or pumps ... it's actually less work then a window banger... and now are cheap ... I got a few and my 2ton Chinese versions I paid 1000 for is as reliable as the Mitsubishis I paid triple for ..
Imo it sounds like you got neighbors I would NOT VENT SHIT.... focus on sealing the room windows plugs etc get a minisplit or2... can be done with venting rooms together but I get 2 and be done... cut no holes hang Ya hoods n burner/or get tank and be done ready to flower , minimum damage , lot less work ducting venting thinking , saves alot of $$$$, not having to buy exhaust fans ,duct work , it also much easier to control the stank in a room with no holes and it's easy to take down n hide if needed, ...

 

[Jonny Lan]

The DIY mini splits are simple they are precharged and screw together .... all Ya need is channel locks , no gauges or pumps ... it's actually less work then a window banger... and now are cheap ... I got a few and my 2ton Chinese versions I paid 1000 for is as reliable as the Mitsubishis I paid triple for ..
Imo it sounds like you got neighbors I would NOT VENT SHIT.... focus on sealing the room windows plugs etc get a minisplit or2... can be done with venting rooms together but I get 2 and be done... cut no holes hang Ya hoods n burner/or get tank and be done ready to flower , minimum damage , lot less work ducting venting thinking , saves alot of $$$$, not having to buy exhaust fans ,duct work , it also much easier to control the stank in a room with no holes and it's easy to take down n hide if needed, ...

I really like the sound of this but if I'm air cooling, and i have an air conditioner going won't it be to cool to run co2?
as well I'm concerned as after reading your suggestion i decided to do research and learned that with air cooled hoods the the ac will dehumidify less as a result of having less heat in the room and my dehumidifiers will need to run almost 24 hours a day.
Wont this cost more?

 

[stoney917]

Simple .... one 2 ton unit will cool ur 4K unvented plus everything else... whether u decide on a Co2 burner or tanks.... also the ones I got will act as dehuey... I still have dehumidifier s but they only come on at lights out... I would strongly consider the whole air cooling your lights, it's not as helpful / efficient as most make it out to be... focus on other things... I run both air cooled and open and can guarantee air cooling Ya lights is more trouble than its worth... but if u do... make sure u seal everything in the hood, the glass, vents, everywhere you got a seem in the sheet metal.... one thing forgotten your defeating the purpose... also push if possible of you suck u have a better chance of smell getting ducked from your room cause negative pressure if u blow the hoods will push air out back into Ya room, be it hot air but it's better e stank escaping...

 

[Jonny Lan]

Simple .... one 2 ton unit will cool ur 4K unvented plus everything else... whether u decide on a Co2 burner or tanks.... also the ones I got will act as dehuey... I still have dehumidifier s but they only come on at lights out... I would strongly consider the whole air cooling your lights, it's not as helpful / efficient as most make it out to be... focus on other things... I run both air cooled and open and can guarantee air cooling Ya lights is more trouble than its worth... but if u do... make sure u seal everything in the hood, the glass, vents, everywhere you got a seem in the sheet metal.... one thing forgotten your defeating the purpose... also push if possible of you suck u have a better chance of smell getting ducked from your room cause negative pressure if u blow the hoods will push air out back into Ya room, be it hot air but it's better e stank escaping...

Thanks man, its always great to get a little reassurance from someone who has been doing this longer than me. I have never run a sealed room before.
Can i truly turn a bedroom into a sealed room? this house is an aluminum siding house with some brick as well. I'm getting the windows redone brick to brick.

 

[Jonny Lan]

And stoney maybe you can help me, I'm thinking of getting a plumber to run me a gas line to the rooms so i may use c02 that way? does that sound good? i dont want to do all this and then not be able to keep the ppms up. Ill feel hella stupid buddy.
Ive never ran co2 before.

 

[stoney917]

Propane is better a tank can get u almost to harvest... if you have a plumber come in what is your reason why u want gas lines in every room... it's permanent not easily explained MOD I cantsee being repurposed unless u add a gas fireplace to each room it's not gonna be cheap and unnecessary... go with propane or even no burner Co2 tanks will be a better option...
To seal seal the room is not that hard... foil tape spray foam caulk ... n some weather stripping are your friend...

 

[Jonny Lan]

Propane is better a tank can get u almost to harvest... if you have a plumber come in what is your reason why u want gas lines in every room... it's permanent not easily explained MOD I cantsee being repurposed unless u add a gas fireplace to each room it's not gonna be cheap and unnecessary... go with propane or even no burner Co2 tanks will be a better option...
To seal seal the room is not that hard... foil tape spray foam caulk ... n some weather stripping are your friend...

I dont mind the costs. I thought about what i would repurpose it for after and figured when I'm done i can take it out?

Im legal so I'm not to concerned about the installation. I would prefer not to have to keep going back for propane.

Ive been reading this thread on icmag and the op along with some other contributors were having problems. my understanding was that it was with either the propane byproducts or it was a depletion of oxygen. how do i prevent this?

https://www.icmag.com/ic/showthread.php?t=290154

 

[Jonny Lan]

Deciding on sealed room

Deciding on sealed room

ok so i decided on going sealed. was gonna go with generator but now leaning towards tank. whats the best way to add co2 with a tank to two rooms?

 

[Jonny Lan]

p series or m series mini splits?