Dual Hose A/C - Growroom Designs & Equipment - International Cannagraphic Magazine Forums

Zeez · 01-29-2018, 07:53 PM

Anyone have a recommend for a dual hose a/c. I've read allot of bad reviews. Also read that extending the hoses voids the warranty, which led me to think that a couple of helper fans inline would help cool the hot side of the a/c. A mini split would be great, but it's going in a 5x9 tent not a room.

Chunkypigs · 01-29-2018, 08:42 PM

I think you'll find it easier and much cheaper to cool your lung room with a window unit and keep your tent cool with exhaust fans strong enough to exchange the air rapidly in it with the lung room.

it's tough to cool these new non air cooled fixtures that have the ballasts attached when you hang them in a tent.

I use 2 8" fans to keep my 4x 8 cool with 1200 watts.

Zeez · 01-29-2018, 09:00 PM

It's in the cellar so there's no way for a window unit. The reviews on portables are so bad, It's tempting to build a box to hold a window unit and duct cooling air to and from it with duct fans. The ballasts are outside, but there's a dehumidifier in there.

Drop That Sound · 01-30-2018, 11:42 AM

Ya don't get a portable, they don't barely work even if you shorten the stock hoses going to a window.

Do you have a decent sized closet or room down there with a door on it? Could mount the window unit right through the door, seal it up nice, and put a large extraction fan near the ceiling in the closet. 8" for sure. Some kind of intake would be needed, maybe just a smaller vent on the same door down below the unit. Doors are cheap to replace. Or start with a used one that fits.

If you don't, then turning a window unit into a portable by hooking up ducting definitely works. Better than a portable. Again use 8 inch coming off the diy unit. Bulky but needed.

I wish I had HVAC tools, watch this guy convert a run of the mill window banger into a mini split in no time: https://www.youtube.com/watch?v=AXgHIrFqm9o

Chunkypigs · 01-31-2018, 01:19 AM

Quote:

Originally Posted by Zeez

It's in the cellar so there's no way for a window unit. The reviews on portables are so bad, It's tempting to build a box to hold a window unit and duct cooling air to and from it with duct fans. The ballasts are outside, but there's a dehumidifier in there.

what size fan filter are you using to cool the tent?
why do you have the dehuey in the tent? does it run during lights on?

you have a logging system running in there on your temps/humidity?

humidity here has been crazy low and leaving the bulkhead door cracked 1/4" has been keeping 2200 watts cool in the cellar here so far for me.

Zeez · 01-31-2018, 02:28 AM

Hi Chunky, For winter ops it's 6" with 350cfm fans in and out using filtered outdoor air. The dehuey is mainly for the humidity rise after lights out, but covers high humidity days as well.

All temps and RH are logged and can be viewed in hour, day, week, month, or year and can be exported in excell. Check out a gizmo called Sensorpush. Cheap and excellent.

Chunkypigs · 01-31-2018, 03:00 AM

how does your current report look there? what's the issue you're having that you want to run the AC in the winter?

I had trouble with stressed plants when cooling with winter air in my NY grow and had to recirculate house air though my closet once temps got below freezing outside.

they could handle 40 degrees but below that plants like the glue hermed on me.

Zeez · 01-31-2018, 03:35 AM

The current setup is working well. No issues except for a fan failure a few days ago. I want to have the new a/c setup ready to roll by the end of march.

Chunkypigs · 01-31-2018, 04:14 AM

It looks like the temps are good.
Does the fan blow outside air through during lights out too? Is it on a thermostat or timer or just constant?

Zeez · 01-31-2018, 04:23 AM

Fans are on a temp control set at 73 with a 3 degree cycle. I get a big humidity bump after the lights go out with the temp drop causing the rh to spike. Lights are CMH with no cooling.

01-29-2018, 07:53 PM	#1
Zeez Going Deep Join Date: May 2016 Posts: 722	Dual Hose A/C Anyone have a recommend for a dual hose a/c. I've read allot of bad reviews. Also read that extending the hoses voids the warranty, which led me to think that a couple of helper fans inline would help cool the hot side of the a/c. A mini split would be great, but it's going in a 5x9 tent not a room.
	Quote

01-29-2018, 09:00 PM	#3
Zeez Going Deep Join Date: May 2016 Posts: 722	It's in the cellar so there's no way for a window unit. The reviews on portables are so bad, It's tempting to build a box to hold a window unit and duct cooling air to and from it with duct fans. The ballasts are outside, but there's a dehumidifier in there. Last edited by Zeez; 01-30-2018 at 04:10 AM..
	Quote

01-31-2018, 02:28 AM	#6
Zeez Going Deep Join Date: May 2016 Posts: 722	Hi Chunky, For winter ops it's 6" with 350cfm fans in and out using filtered outdoor air. The dehuey is mainly for the humidity rise after lights out, but covers high humidity days as well. All temps and RH are logged and can be viewed in hour, day, week, month, or year and can be exported in excell. Check out a gizmo called Sensorpush. Cheap and excellent.
	Quote 1 members found this post helpful.

01-29-2018, 08:42 PM	#2
Chunkypigs Hard Mode Join Date: Dec 2010 Location: the ugly part of town where they keep the Government Buildings. Posts: 3,246	I think you'll find it easier and much cheaper to cool your lung room with a window unit and keep your tent cool with exhaust fans strong enough to exchange the air rapidly in it with the lung room. it's tough to cool these new non air cooled fixtures that have the ballasts attached when you hang them in a tent. I use 2 8" fans to keep my 4x 8 cool with 1200 watts.
	Quote

01-30-2018, 11:42 AM	#4
Drop That Sound Member Join Date: Jan 2015 Location: Services Disabled Posts: 501	Ya don't get a portable, they don't barely work even if you shorten the stock hoses going to a window. Do you have a decent sized closet or room down there with a door on it? Could mount the window unit right through the door, seal it up nice, and put a large extraction fan near the ceiling in the closet. 8" for sure. Some kind of intake would be needed, maybe just a smaller vent on the same door down below the unit. Doors are cheap to replace. Or start with a used one that fits. If you don't, then turning a window unit into a portable by hooking up ducting definitely works. Better than a portable. Again use 8 inch coming off the diy unit. Bulky but needed. I wish I had HVAC tools, watch this guy convert a run of the mill window banger into a mini split in no time: https://www.youtube.com/watch?v=AXgHIrFqm9o
	Quote

01-31-2018, 03:00 AM	#7
Chunkypigs Hard Mode Join Date: Dec 2010 Location: the ugly part of town where they keep the Government Buildings. Posts: 3,246	how does your current report look there? what's the issue you're having that you want to run the AC in the winter? I had trouble with stressed plants when cooling with winter air in my NY grow and had to recirculate house air though my closet once temps got below freezing outside. they could handle 40 degrees but below that plants like the glue hermed on me.
	Quote

01-31-2018, 03:35 AM	#8
Zeez Going Deep Join Date: May 2016 Posts: 722	The current setup is working well. No issues except for a fan failure a few days ago. I want to have the new a/c setup ready to roll by the end of march.
	Quote

01-31-2018, 04:14 AM	#9
Chunkypigs Hard Mode Join Date: Dec 2010 Location: the ugly part of town where they keep the Government Buildings. Posts: 3,246	It looks like the temps are good. Does the fan blow outside air through during lights out too? Is it on a thermostat or timer or just constant?
	Quote

01-31-2018, 04:23 AM	#10
Zeez Going Deep Join Date: May 2016 Posts: 722	Fans are on a temp control set at 73 with a 3 degree cycle. I get a big humidity bump after the lights go out with the temp drop causing the rh to spike. Lights are CMH with no cooling.
	Quote