air cooling question

[theLumberjack]

last summer i had major heat issues.

I grow in an insulated 10*20 out building. I have 3 air cooled 600 watt in a 4* 8 tent with a 6 inch max can that pulls into an attic. I also have 2 315 watt ceramic lights that currently just have air moving through their 3*3 tents back out into the main room....

I will have an 8 inch max fan fresh air in. 8** cfm

I have a 10" max fan. 1060cfm

should I
1.) place in attic to continually clear the attic air.
2.) put on a scrubber and push out a vent in the attic to the outside
3.) mount on ceiling in room and pipe to the outside vent.

I am concerned with smell. but all tents are pushed into their own scrubbers and I have phresh filter in the main room just circulating.

ideas?

I run these fans based on thermostat outlets. I also have a 13,000 btu portable ac that i vent into the attic. although I swear it only made the place hotter.

can i get enough air flow to cool the whole room? the roof gets a lot of sunlight. but only a few days a year are in the high 90's.

do any smart thermostats exist that can run or not run outlets based on outside temp??

thanks guys

 

[DoubleTripleOG]

I would pump all the hot air into the attic and scrub that air before it gets dumped outside. If money's not a problem. They have those huge attic fans that are like 14"-16" and move like 2500 cfm's ( I'm going off memory, from when I priced them). Hook one of those up in the attic with reducers down to 2 10" lines and have 2 10" scrubbers that the air in the attic gets pulled through before it leaves the building.

Or if the air is scrubbed before it enters the attic, just use the 14"-16" fan to evacuate the hot air out of the attic. Whatever way you decide I would use fans with filters for exhaust and multiple passive intakes for Intake of fresh air.

 

[theLumberjack]

thank you dtog

 

[theLumberjack]

do you think a "floor","box" or drum fan in the attic would be adequate to clear the small space? and quieter than the standard hyrodfarm type of fan...??

 

[DoubleTripleOG]

Out of the fans you listed, a drum fan would prolly work the best. As long as you can force the air out of the attic, without it blowing around inside the attic. Here's a pic of the fan I was talking about for in your attic. Push/Pull scrubbed air into the attic, and evacuate with this fan.

 

[DoubleTripleOG]

That fan is 16" and moves 1600 cfm's. They even have attachments for outside of the house so no one would be able to see the fan. It's on a thermostat, which you could bypass, and have it run on a timer at your discretion.

I have also used one of those portable ac's. I had the exhaust on it's own 6" fan and filter. I slipped an insulation sleeve around the hot air outlet part of the ac as well to help with the heat. I swear they make the hot air outlet on those as difficult as possible to hook anything up to because they want you to buy their parts.

 

[theLumberjack]

That fan is 16" and moves 1600 cfm's. They even have attachments for outside of the house so no one would be able to see the fan. It's on a thermostat, which you could bypass, and have it run on a timer at your discretion.

I have also used one of those portable ac's. I had the exhaust on it's own 6" fan and filter. I slipped an insulation sleeve around the hot air outlet part of the ac as well to help with the heat. I swear they make the hot air outlet on those as difficult as possible to hook anything up to because they want you to buy their parts.

i agree, thanks dude!