Venting heat from one area to another - Growroom Designs & Equipment - International Cannagraphic Magazine Forums

Pakman · 07-01-2017, 01:56 PM

Hey all, I'm trying to vent the excess heat from one small grow area into a small clone tent. The box is running ~200w of cfls, the tent 50w of LED's.
Rather than cooling the box and heating the tent, I want to heat the tent from the box.

How efficient would it be to run it like this...

Where - is airflow, = is duct

--[box]====[tent]===[fan]==---

Thanks for any input!

starke · 07-01-2017, 02:15 PM

Read the beginning of this thread and you will find your answers:

https://www.icmag.com/ic/showthread.php?t=112862

Pakman · 07-01-2017, 04:48 PM

Thanks for the reply starke, but I'm unable to find the answers you mentioned.

The closest I could find was the multi chamber design, but that still differs greatly.

The box has passive intakes in the base, and a 240v pc style (no flanges) fan at the top back.
I wish to exhaust the box into the tent thereby lowering the box temp and raising the tent temp.
The tent will have an open air passive intake on one side, and the heated air from the box on the other.
The tent will be exhausted through the top.

The multi chamber vents equally through both, not into one then out the other.

Speed of green · 07-02-2017, 02:57 AM

yes it can work, depends on your fan cfm's, ambient air temp and the passive intakes, you may have to put the fan on a timer to allow the lights to heat the air before passing it along to the next chamber.

also any extra length or bends in the ducting will reduce the fans output cfm's.

Post up some pictures, and maybe a sketch of your idea and more people will respond.

Iamnumber · 07-04-2017, 06:33 AM

Quote:

Originally Posted by Pakman

Hey all, I'm trying to vent the excess heat from one small grow area into a small clone tent. The box is running ~200w of cfls, the tent 50w of LED's.
Rather than cooling the box and heating the tent, I want to heat the tent from the box.

How efficient would it be to run it like this...

Where - is airflow, = is duct

--[box]====[tent]===[fan]==---

Thanks for any input!

Should work..
I would put large duct between box and tent in order to ease the airflow between the two. Without this there is a risk of tent being sucked in. 2* what is going to the fan.

07-01-2017, 01:56 PM	#1
Pakman Newbie Join Date: Jul 2016 Location: Australia Posts: 26	Venting heat from one area to another Hey all, I'm trying to vent the excess heat from one small grow area into a small clone tent. The box is running ~200w of cfls, the tent 50w of LED's. Rather than cooling the box and heating the tent, I want to heat the tent from the box. How efficient would it be to run it like this... Where - is airflow, = is duct --[box]====[tent]===[fan]==--- Thanks for any input!
	Quote

07-01-2017, 02:15 PM	#2
starke Member Join Date: Aug 2015 Location: Between Key West and Perdido Key Posts: 669	Read the beginning of this thread and you will find your answers: https://www.icmag.com/ic/showthread.php?t=112862 __________________ “We've all heard that a million monkeys banging on a million typewriters will eventually reproduce the entire works of Shakespeare. Now, thanks to the Internet, we know this is not true.” ~Robert Wilensky "Spread the knowledge, be humble if you don't know, be helpful if you do, if you are wrong, admit it quickly and emphatically, and overgrow the world." (SuperWeed 2017) "Always keep in mind that when the hearse pulls up to pick you up, there is no trunk or luggage rack on that bitch." (Author unknown) Current Grow: https://www.icmag.com/ic/showthread....343153&page=20 Page 20 forward
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07-01-2017, 04:48 PM	#3
Pakman Newbie Join Date: Jul 2016 Location: Australia Posts: 26	Thanks for the reply starke, but I'm unable to find the answers you mentioned. The closest I could find was the multi chamber design, but that still differs greatly. The box has passive intakes in the base, and a 240v pc style (no flanges) fan at the top back. I wish to exhaust the box into the tent thereby lowering the box temp and raising the tent temp. The tent will have an open air passive intake on one side, and the heated air from the box on the other. The tent will be exhausted through the top. The multi chamber vents equally through both, not into one then out the other.
	Quote

07-02-2017, 02:57 AM	#4
Speed of green Member Join Date: Feb 2015 Location: SoCal Posts: 627	yes it can work, depends on your fan cfm's, ambient air temp and the passive intakes, you may have to put the fan on a timer to allow the lights to heat the air before passing it along to the next chamber. also any extra length or bends in the ducting will reduce the fans output cfm's. Post up some pictures, and maybe a sketch of your idea and more people will respond.
	Quote