ac air
- Thread starter watsupbud
- Start date
Sweet'nHeavy
Member
If you simply use an exhaust the room replacement air will have to come into the room from the leaks in your room. The AC air isn't fresh its recycled if your talking about your home ac unit. A portable unit with an intake from the outside ould be the only ac that would bring in fresh air. The only way to make sure your ac is really bringing in fresh air is to check the pressure boundary of your house when your ac is on. if you leave your front door unlatched and it swings open when you turn on the ac it means you have a negative pressure inside which means you're drawing fresh air inside. A way to tell if that air is coming or going into your room is to face the door when its closed and the ac is on and see if you can feel air flowing from around the edges if your ac is really running a high pressure you can tell which way the air is flowing (of course this also may not work at all if your HVAC isn't drawing that much air a way to increase this flow is to take out the filter before you try that test to increase the flow). By having an exhaust fan in the room you will make the airflow to the room highly negative refreshing the air which is something that is vital for growing don't skimp on a fan its often the most overlooked vital piece of equipment.
Hope that helps.
Hope that helps.
how will i bring fresh air in if this grow is upstairs, and upstairs will be sealed from the first floor? should i run an intake from the 1st floor to each grow room?
Sweet'nHeavy
Member
Depends on the volume of the room really. Cut a hole size and exhaust fan dependent. The bigger the room the bigger the vent. Just leave the exhaust fan on all the time it will draw the air in from below if there is a larger ventilation area connecting the pressure boundary to the room below rather than the attic or from upstairs windows. Is it a second story or an attic.
If you have multiple rooms you may have to change this strategy slightly. How many rooms are there I need specs to be able to advise you correctly the science behind proper ventilation isn't easy to advise without proper details.
Just ask if you have any questions about how I word what I say as well.
If you have multiple rooms you may have to change this strategy slightly. How many rooms are there I need specs to be able to advise you correctly the science behind proper ventilation isn't easy to advise without proper details.
Just ask if you have any questions about how I word what I say as well.
both of these are rooms(14x16x8 but grow area is 12x12x8 and will not be sealed so im guessing its still 14x16x
. a bathroom sits between both rooms. i was thinking about exhausting both rooms each w carbon filter into the restroom and venting it out the current vent it has by default with a Y ducting but make the hole bigger...theres also a game room up stairs , but this is a veg room...im just unsure of how to bring fresh air up because the stair door will be closed when entering the grow room...i do not want ne smell to escape to the 1st flooor.
Sweet'nHeavy
Member
Just keep the fan on exhausting at all times and if you keep it moving out it shouldn't go down stairs under any circumstance. You also have convective currents running upwards pressing all the hot air out of the home as well so it really should't be a problem at all. The air will be sucked in from around the door unless you made it absolutely airtight which you probably didn't do, which you should not do do not seal any doors. Don't blow air into the home from outside of it simply blow it out of the rooms this will automatically pull the air from downstairs and the downstairs air will be replace by outside air or if you have a raised foundation 11% from under the home. (thats where 11% of the air we breath in raised foundation comes from on average.)
The Y is a good instance except I don't fully understand is it a bathroom vent with an installed Y from multiple rooms? Heres an idea for a cheap Y for more than just 2 splits. Take a trashcan with a lid like a 32 gallon snapon lid(from wallmart $15) take the fan your using with the carbon filter attach it to the suction end and put it in the trashcan. Make it so the air duct goes through the top out of the room from the exhaust end of your fan. Now cut holes into the side of the trashcan this will be your new Y attachment instead of a sheet metal piece. Now close the lid. This way just one filter sucks all the air through the can which acts as a large filter air intake cleaning box. Cheaper too connectors ar 15-30 and a can can get tons of duct branches if you sped the $ to get a good fan for exhaust.
Understand? I can still get onto the math of those rooms in a bit if you don't have any questions on my suggestions so far.
The Y is a good instance except I don't fully understand is it a bathroom vent with an installed Y from multiple rooms? Heres an idea for a cheap Y for more than just 2 splits. Take a trashcan with a lid like a 32 gallon snapon lid(from wallmart $15) take the fan your using with the carbon filter attach it to the suction end and put it in the trashcan. Make it so the air duct goes through the top out of the room from the exhaust end of your fan. Now cut holes into the side of the trashcan this will be your new Y attachment instead of a sheet metal piece. Now close the lid. This way just one filter sucks all the air through the can which acts as a large filter air intake cleaning box. Cheaper too connectors ar 15-30 and a can can get tons of duct branches if you sped the $ to get a good fan for exhaust.
Understand? I can still get onto the math of those rooms in a bit if you don't have any questions on my suggestions so far.
alright, i get the part about the air circulation, but im not sure about the trashcan set up.
i was thinking..
(growroom1) carbon filter>>>>air>>[>>wall>>]>>>>(bathroom)Y fitting <<<<<[<<wall]<<]<<air<<<<carbon filter (growroom2)
and at the single opening of the y fitting have it ventilated out through the ceiling where the bathroom fan was at..im sure i have to make this hole bigger correct? in order to vent out both rooms? (i will be taking out the small bathroom fan the house was built with)
Sweet'nHeavy
Member
Basically you will need at least an 8" duct b/c right now your Bathroom prbly has a 6" duct. You definitely need a larger exit than that. Im making it so you only have to buy one fiter and one big fan instead of two. It'll go something like this you can do multiple lights in series with this as well it works like a fucking gem.
(GR1) Light>>>duct>>>traschcan with filter inside sucking air out and fan on top.<<<<<duct <<<light(GR2)
Imagine its like your drinking a milkshake you-the fan is sucking the air thru the filter-straw inside the cup with a lid on it. The filter is on the inside of the can the fan is on the lid. you poke two holes on the sides of the can to suck what is on the inside of the can and what is connected to those two holes out of the room thereby bypassing needing extra fans. its easier for a fan to be impeded by a filter early on than have to deal with it down the line or at the ends of ducting and that way you know the smell isn't leaving bc the filter is at your Y basically. And closest to exhaust area.
Kind of understand now?
(GR1) Light>>>duct>>>traschcan with filter inside sucking air out and fan on top.<<<<<duct <<<light(GR2)
Imagine its like your drinking a milkshake you-the fan is sucking the air thru the filter-straw inside the cup with a lid on it. The filter is on the inside of the can the fan is on the lid. you poke two holes on the sides of the can to suck what is on the inside of the can and what is connected to those two holes out of the room thereby bypassing needing extra fans. its easier for a fan to be impeded by a filter early on than have to deal with it down the line or at the ends of ducting and that way you know the smell isn't leaving bc the filter is at your Y basically. And closest to exhaust area.
Kind of understand now?
sorta kinda, when your saying series my 6 lights will sit like this correct = = = . im still a little unsure about the trashcan. it sits horizontal correct and it is in growroom1? is the fan sucking the filter on the outside mounted on the trashcan lid? and when u say poke two holes, since the trash can is horizantal, in realitly its the bottom of the trash can and on the lid? or the actual sides of the trash can when standing up right? and the second rooms seems like it dont have any air sucking thorugh it... its kinda hard to tell what your saying without a drawing, im sorry. if you can sketch a quick drawing if you dont mind. i really appreciate it. thanks
sorta kinda, when your saying series my 6 lights will sit like this correct = = = . im still a little unsure about the trashcan. it sits horizontal correct and it is in growroom1? is the fan sucking the filter on the outside mounted on the trashcan lid? and when u say poke two holes, since the trash can is horizantal, in realitly its the bottom of the trash can and on the lid? or the actual sides of the trash can when standing up right? and the second rooms seems like it dont have any air sucking thorugh it... its kinda hard to tell what your saying without a drawing, im sorry. if you can sketch a quick drawing if you dont mind. i really appreciate it. thanks
and also, how would i control the co2 tank when the carbon filter is sucking air out the room? how should i set this up. i dont want to be wasting the co2?
and also, how would i control the co2 tank when the carbon filter is sucking air out the room? how should i set this up. i dont want to be wasting the co2?
Sweet'nHeavy
Member
ok i see what your saying now...having 6 lights in each room, you think that one 8inch or 10inch is good enough to clear the air plus heat for both rooms?
i was thinking the 6 lights in a series but adding 2 fans 1 for each room sucking the air into the trashcan than the big fan exhausting out. With a total of 3 fans.
= = = >>6inch fan>>[wall>>](>bathroom trashcan setup<)<<6inch fan<< = = =
mijola3
Active Member
lol yip....this is a mega grow show you're undertaking here Bud.... you can start with the basics and then start adding more lights , co2, different hydro systems, etc.. as you get your enviornment dialed in and grow more comfortable ...
just a suggestion
Sweet'nHeavy
Member
That could work pretty well, just make sure that you use the bigger cfm fan on the trashcan. you can still use one Nice carbon filter instead of two using the can system. I'd use the three fans it'll make sure that the air pressure in each room will be more equal too that way. You will also have more fresh air being pulled into each of the rooms.
alright, thanks bro! so in the grow room, on the other ends of the lights, do i just leave it open(where the 0 is shown beow? because i know the one closes to the bathroom walls will b used with a Y fitting lights 0 === >--wall--fan-trashcan setup-fan--< === 0
also, during the winter season, would there be heavy steam coming out the vent from the roof that are from the hot air from the two rooms? wouldnt this raise some suspicion? how can i fix this.
