DIY dry room build out

If you had like a mud room area that was completely unfinished and you were on a reasonable but modest budget, how would you build it out to make a good working dry room?

I am thinking I put a wall mount AC unit right in the wall near the top, insulate the walls and drywall them and set up a humidifier/dehumidifier/ac/space heater on a Niwa grow hub…is there more/better for similar price point, I’m at around $1000

I’ve decided I am going to build out the 10x6 room using coolbot’s plans for an outdoor/shed walk in near cooler.
https://www.storeitcold.com/wp-content/uploads/2020/03/DIY-Cooler-2021-7A.pdf

I am going to get a 3/4 ton mini split to cool/heat the space to 60 degrees. The list of mini split brands that are compatible with coolbot is: LG, Mitsubishi, Fujitsu, Samsung, Toshiba, Daikin, and Goodman.
I found this Daikin. For $987 including shipping and tax.
https://www.amazon.com/dp/B07DYDG3VP/ref=cm_sw_r_awdo_CVPZ3SJZSJVDZQMDSKPQ_0?psc=1

i am wondering what the best way to ventilate that space would be? Fresh filtered air in? How much?

How bigs your flower room that you are needing such a complex and large dry room?

I have a 10x20 space, but at this point I have the ability to flower out a 10x10. It is more than what I need now, but I would like it to be capable of handling as much as I need. There are also 2 other local growers that I would let utilize the space as well, who have been helpful in ways to me in the past.

Don’t think fresh air in would be much good, exhaust out though would definitely help control humidity. I’m kinda going through the same process with my ever expanding grow. Two harvests at current capacity and I’ll be expanded to max and solvent.

Crap those cool room plans are sick. Wish I saw that 2 months ago before I did my build out.

pahpah-cee said:

Crap those cool room plans are sick. Wish I saw that 2 months ago before I did my build out.

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What did you end up doing for yours?

FlowerPower88 said:

What did you end up doing for yours?

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It’s similar. These instructions would of left a lot of the guess work out of using foam insulation and other parts as well. It would of convinced me to used thicker foam too.

pahpah-cee said:

It’s similar. These instructions would of left a lot of the guess work out of using foam insulation and other parts as well. It would of convinced me to used thicker foam too.

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I was lucky, I couldn’t find an ac unit that would go below 62 degrees, and I searched how to trick an ac into cooling below that, and that coolbot unit came up, and their website has a ton of DIY stuff that can be adapted to these purposes.
What type of insulation did you use? These plans call for 2” thick rigid foam, and those are quite pricey, I’m wondering if I can get away with 1” since I don’t need to get down to the 30’s I just need to hold 60

FlowerPower88 said:

I was lucky, I couldn’t find an ac unit that would go below 62 degrees, and I searched how to trick an ac into cooling below that, and that coolbot unit came up, and their website has a ton of DIY stuff that can be adapted to these purposes.
What type of insulation did you use? These plans call for 2” thick rigid foam, and those are quite pricey, I’m wondering if I can get away with 1” since I don’t need to get down to the 30’s I just need to hold 60

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I got the rigid 1” sheets. I did two layers so technically 2” of insulation. My room is a build in my unfinished garage. Air intake is from the garage and exhaust the hot air out the window

Currently it’s working great. My room is small only 3.5ftx8.5ft. I wanted to insulate more with wool or fiberglass in between the studs but I was going way past my budget so I said fuck it. I keep wondering if im going to regret it later when I start running both lights at 100% which is going to happen around September.

Right now I’m testing out Co2. I have seedlings so it’s silly. I’ve been running the co2 for two weeks at 600ppm (with LEDs on) and the bottle seems full still. So I’m stoked about that.

My plan is to take a free travel trailer(already have a few different sized ones), gut it out completely, and shoot 2-3 inches of expanding spray foam all around the inside walls/ceiling. Maybe even save money, and drive around picking up free hot tub covers, which is usually 4" closed cell foam. Or some other cheap free source of foam.

Put some metal roofing panels around the ugly outside to make it appear halfway decent, and not a dingy old RV.

Then hook up 3 6500 btu window bangers (modified into mini splits by taking them apart, and carefully bending the evaporator coil exchangers out and away from the units. Then putting them through a slot in the wall, patching up around the copper tubing, and letting the main part of the units sit outside somewhere).

Setup a cool bot to trigger all three ACs at the same time.

Then hook up a generator towards the back end.

Mobile refrigeration trailer for a poor man!

Could haul a ton of veggies across the state to make deliveries, or just to have a cold room wherever you need.

Drop That Sound said:

Mobile refrigeration trailer for a poor man!

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thank you so much for the share man! This is invaluable.