Should I control the environment of my Room or Tent?

[Blink420]

Should I control the environment of my Room or Tent?

Installing a 2.5kw Split system reversed cycle air conditioner into my 2.8m x 3m x 2.40m sealed bedroom
With two tents,
1.50m x 1.50m x 2.40m, Veg & Bloom
1.4m x 90m x 2m, Mother.
both exhausting air into the room.

Would I install a humidifier and dehumidifier in both tents?

Cheers.

 

[tobedetermined]

I am certainly no expert, but your split will cool and dehumidify the environment. If you maintain good airflow in the tents, this will manage the temps and probably dehumidify enough. Individual control to add humidity for germination and early growth would be nice.

Welcome to icmag btw . . .

 

[Blink420]

I am certainly no expert, but your split will cool and dehumidify the environment. If you maintain good airflow in the tents, this will manage the temps and probably dehumidify enough. Individual control to add humidity for germination and early growth would be nice.

Welcome to icmag btw . . .

Thanks buddy.

 

[flylowgethigh]

A cool dry lung room is a great start. You are putting a lot of energy into the tent with the lights, heat rises and so do the tops. They are up in that hot wet air. Pulling that moist heat out and sending it outside is a key design element.

Do whatcha gotta do... through the wall.

Look at my diary of run #6 for a cheap filtered forced air system for a tent. This is a big leap over the openings at the bottom having to draw in unfiltered air. Keep the lung room clean as you can.

My next step is going to be diverting more of the house AC air into the lung room to cool it more in the summer. Then if needed, I will add a stand-alone AC unit, and vent it's hot exhaust out through a window adapter.

 

[Blink420]

Hey Dude
Cheers for ur thoughts.

I want to keep the room sealed and have the split recycle the exhaust air from the tents.
I am slightly concerned that the section at the bottom of the plant canopy to the bottom of the led will be harder to control without having a portable ac inside the tent or exhausting air from the tent into the roof confidently bringing in the fresh air created by the split inside the sealed room.

I want to control the room temperature and have the tents follow without exhausting air out of the room? I know this is possible but is it effective? Am I better off using a fan speed regulator on my exhaust fans pulling hot air into the roofspace, while the split keeps the tents surrounding temperature at 27°C


1.5x1.5 200m sigilventus ec silenced 1x 800w Photomax 2 Blackdog led.
1.4m x 90m 150m sigilventus ec silenced 1x 400w Bava green pro
Mitsubishi Heavy Industries 5kw Avanti

 

[Switcher56]

When outdoors, mother nature is the environment. In your case it is your room. You are the environment. An AC dehumidifies, so no need for a dehuey. TBS you will need a small humidifier in your tents to maintain proper VPD, being turned off an on by a controller.

Even without AC, humidity is the most important factor IMHO, where, we have to augment with a house humidifier during winter months. I go through more water (in humidifier) during winter than I do during the summer. Because our environment in the Maritimes is Helter Skelter during the summmer here. I don't grow from the end of May to end of Aug. As I don't need 3 grows per yr and I save a shit ton of money doing so.

 

[troutman]

Put a humidifier or humidifier in the main room that you vent your tents into if you need them.
This way the heat produced by them won't affect your plants as much and give you more place
in the tents for plants.

 

[Blink420]

Thanks for your replies gent

When outdoors, mother nature is the environment. In your case it is your room. You are the environment. An AC dehumidifies, so no need for a dehuey. TBS you will need a small humidifier in your tents to maintain proper VPD, being turned off an on by a controller.

Even without AC, humidity is the most important factor IMHO, where, we have to augment with a house humidifier during winter months. I go through more water (in humidifier) during winter than I do during the summer. Because our environment in the Maritimes is Helter Skelter during the summmer here. I don't grow from the end of May to end of Aug. As I don't need 3 grows per yr and I save a shit ton of money doing so.

Thanks for the reply buddy. Going to do some reading on VPD, Feeling 1 smart humidifier per tent set to auto, Control humidity in tents, and Control the temperature of the room.

 

[tobedetermined]

And . . . really think about airflow. A fan-forced intake with an oversized output gives you a lot of control inside the tents and when coupled with ac'd room air, you should have a great environment to grow.

 

[Three Berries]

Be sure the intake is rated higher flow than the output. Beware those booster fans with the motor and fan blade inside a duct as they really cut airflow down. Axial fans are the way to go. EC for speed control.

I have a rectangular, fit between the studs, bath exhaust fan sitting on the floor in the corner of the tent. Then a 4" hose to the top and a fan shaped 90 to blow the air along the top of the tent. Does an excellent job of keeping all the air circulated and cooling the area above the lights low wattage too at 25w. It runs all the time.

 

[growshopfrank]

Monitor the humidity in the tent at plant height. Once there is a decent amount of foliage I'm betting that supplemental de-humidification will be required.
If the budget will allow look for a LGR type of dehumidifier.

 

[flylowgethigh]

I have 6" AC infinity fans on the inlet filter box and the exit. The exit has to suck through a carbon filter, so it isn't moving as much as the inlet, which sucks through a HEPA 1'x 2' filter.

My lung room is 72-73*F, but it should be around 68 I think. I am looking at a window AC unit, which will also pull down the humidity in the lung room. A bonus would be to have a timer that really ran the temps down at night while I slept.

 

[Muarco]

Hello guys, I'm running into a similar kind of issue. I want to run 2 tents at different times (in the future veg and flower) so the temperatures and CO2 levels need to be controlled separately. I solved this by having 2 portable AC units cool down the tents individually, each controlled by a Trolmaster Hydro X. I'm wondering now if I should create vents openings in my tent to exchange air with the room or if I'm good keeping both tents sealed and just having scrubbers recirculating the air inside. Regarding the room I'm wondering if I should install any ventilation to provide air exchange with the outside. I do have some vents that provide passive air exchange into the room.

 

[Hammerhead]

I dont see any mention of Co2?.. You cant do a sealed room without it. If that's not possible you have to incorporate scrubbed fresh air intake and Scrubbed exhaust.

If you have dedicated AC and Co2 you don't need to exchange the air for a sealed room. You're defeating the purpose of using Co2 if you exchange the air. You don't need Co2 In an unsealed room, you do need a Scrubbed fresh air intake/exhaust, ..

 

[.............]

5kw is overkill for that.

 

[Muarco]

I dont see any mention of Co2?.. You cant do a sealed room without it. If that's not possible you have to incorporate scrubbed fresh air intake and Scrubbed exhaust.

If you have dedicated AC and Co2 you don't need to exchange the air for a sealed room. You're defeating the purpose of using Co2 if you exchange the air. You don't need Co2 In an unsealed room, you do need a Scrubbed fresh air intake/exhaust, ..

In case of complete sealed room with CO2 enriched environment, would I need to start feeding CO2 already in veg. And would I be able to keep higher temperatures in veg as well?

 

[Three Berries]

High CO2 is great for veg.

 

[Hammerhead]

In case of complete sealed room with CO2 enriched environment, would I need to start feeding CO2 already in veg. And would I be able to keep higher temperatures in veg as well?

Doesn't matter where the plants get their Co2. Sealed rooms will run warmer 82-85f. If the space is sealed it needs Co2. All plants take in carbon dioxide and give off oxygen. Most do not run sealed spaces for veg.

 

[Douglas.Curtis]

What is your end goal, and how low can you get your RH??
Lots of plant for sale, or lots of resin to smoke/medicate with? Transpiration is key regardless, so you need to choose.

Hot/wet will produce a LOT of plant. Cool and dry will produce better resin but up to a third of the harvest you are used to. The flower will last two to three times as long in your bowl though.