Good Dehumidifier that doesn't dump heat

Any recommendations for a dehumidifier that doesn't dump heat into the grow?

The smaller the better of course....

Thats just how they work per my reseach theres no such thing as a regular dehuey you can buy for $200. It heats air back up its just how it works and if it didnt have accurate tenps heated back up it might kill itself in temps below 65F. Those commercial dehueys I forget what theyre called but they do have that option but theyre like 1500$.

Il watch just in case but just thought Id comment since I been here once.

medidedicated said:

Thats just how they work per my reseach theres no such thing as a regular dehuey you can buy for $200. It heats air back up its just how it works and if it didnt have accurate tenps heated back up it might kill itself in temps below 65F. Those commercial dehueys I forget what theyre called but they do have that option but theyre like 1500$.

Il watch just in case but just thought Id comment since I been here once.

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There's a desiccant dehumidifier vs a compressor but it's nearly impossible for that information to be given in a product description which is crazy because they are so different.

I posted this on another forum over o month ago. however you say smaller the better?
you mean less heat the better or smaller dehumidifier?

I made a dehumidifier a few years ago,
say like a set of drawers for jeans, maybe 5 levels of drawers,
cut square holes in the bottom of each drawer bottom,
leaving a border of say 2 inches perimeter.
Staple or glue fly screen to each bottom. that's what the border is for.
.even a rib or cross into the middle to secure the flycreen.

then use kitty litter, on the other site people recommended damp rid
and maybe a couple other products possibly rock salt? im not sure
a fan at the top rear level, air intakes at the bottom.
Try to seal each level with say rubber window seals sort of seals or silicone
something to seal air flow through each level.
kitty litter i used, silica kitty litter i found best and cheap.
might work better if ground up as most silica kitty litter comes in big rocks
ground up might last shorter though

100 mm to 150 mm inline fan out the back (or top of drawers) some sort of decent fan..
centrifugal might be over powered
the fan sucks humidity filled air through the kitty litter/damp rid/salt whatever works
i only used silica kitty litter in cyclone infested rain times
that worked for weeks
reduces humidity in my lounge room, my small grow room
mostly only used for green to dry weed if its raining and humid
but mad cyclone time, needed it to get rid of mold risks and rain leaks through no windows
(a roof hit our windows)

Anyway this idea worked for a while..kitty litter is useful for so many things..
.not sure how long it will last though.
but this works if needing a quick solution for a few weeks,
if it moistens up, kitty litter is less than $20 a bag to refill drawers so cheaper than a dehumidifier
no heat, i wouldn't attach it to tent etc i would dehumidify room surrounding tent or grow room.

Big scale this wont be a long lasting solution.

It did work for lowering mold and rain in my no window cyclone damaged
apartment for a few weeks though so it might be worth a shot.

My dehu cost about 500$ and its very efficient. It's specced for 120m2 and I only use it in 20m2 so it doesn't need to run for long. It's also one of the best unit you can buy locally with som own features like active defrosting.

Aim for the best and most efficient unit you can find, the cheapest ones doesn't work for shit IMO. The cheaper are good for repurpose to build wine coolers and water chillers. The unit I repurposed all these years ago were 150w at full load and the new one is 420w, both use R290 as coolant medium.

Id love to know if there is such thing for a decent price as without a mini split when its warm enough that outside air cant help me anymore.. Its annoying it raises temps more than anything I have. I didnt even hear of a disiccant dehuey but says they also push out lots of heat.

I feel like solving this is as good as buying a minisplit maybe not I think thise like 1200$. Plus labor.

Wastei said:

My dehu cost about 500$ and its very efficient. It's specced for 120m2 and I only use it in 20m2 so it doesn't need to run for long. It's also one of the best unit you can buy locally with som own features like active defrosting.

Aim for the best and most efficient unit you can find, the cheapest ones doesn't work for shit IMO. The cheaper are good for repurpose to build wine coolers and water chillers. The unit I repurposed all these years ago were 150w at full load and the new one is 420w, both use R290 as coolant medium.

Click to expand...

My search saying they still heat up a room but only slightly. Is it implying in our uses it still can unless you have the right space to make it run less often or more often but a bigger room to not notice much temp rising?

I got frigidaire 35 pint 3000 sqr ft coverage in a 100 sq ft room. On as needed until I have plants in week 5 flower or more then on continuous op which is fine unless theres no way to cool room through winter outdoor air or summertime ac. So in between its a biotch raising temp like 15F alone!

It does get tents to 38rh like now week 7 flower. Growing more carefully smaller so can control them better. Had a bad mold fest last run.Thing is like 2 yrs old! Good dehuey I got a nother one despite this issue.

medidedicated said:

Id love to know if there is such thing for a decent price as without a mini split when its warm enough that outside air cant help me anymore.. Its annoying it raises temps more than anything I have. I didnt even hear of a disiccant dehuey but says they also push out lots of heat.

I feel like solving this is as good as buying a minisplit maybe not I think thise like 1200$. Plus labor.

Click to expand...

I put my minisplits in myself. I was slow medi but I got it done for the price of the parts Take a look at the instructions Mr.Cool offers.

stawawager said:

Any recommendations for a dehumidifier that doesn't dump heat into the grow?

The smaller the better of course....

Click to expand...

Air conditioner.

1212ham said:

Air conditioner.

Click to expand...

I actually have a small window AC that I can install right in the sidewall. That would sure dump heat out but probably way overkill.

medidedicated said:

Id love to know if there is such thing for a decent price as without a mini split when its warm enough that outside air cant help me anymore.. Its annoying it raises temps more than anything I have. I didnt even hear of a disiccant dehuey but says they also push out lots of heat.

I feel like solving this is as good as buying a minisplit maybe not I think thise like 1200$. Plus labor.

Click to expand...

A split having the unit on the outside and pumping air in?

Here's one of the very desiccant few I've found. $180.

HeathStyle said:

I posted this on another forum over o month ago. however you say smaller the better?
you mean less heat the better or smaller dehumidifier?

I made a dehumidifier a few years ago,
say like a set of drawers for jeans, maybe 5 levels of drawers,
cut square holes in the bottom of each drawer bottom,
leaving a border of say 2 inches perimeter.
Staple or glue fly screen to each bottom. that's what the border is for.
.even a rib or cross into the middle to secure the flycreen.

then use kitty litter, on the other site people recommended damp rid
and maybe a couple other products possibly rock salt? im not sure
a fan at the top rear level, air intakes at the bottom.
Try to seal each level with say rubber window seals sort of seals or silicone
something to seal air flow through each level.
kitty litter i used, silica kitty litter i found best and cheap.
might work better if ground up as most silica kitty litter comes in big rocks
ground up might last shorter though

100 mm to 150 mm inline fan out the back (or top of drawers) some sort of decent fan..
centrifugal might be over powered
the fan sucks humidity filled air through the kitty litter/damp rid/salt whatever works
i only used silica kitty litter in cyclone infested rain times
that worked for weeks
reduces humidity in my lounge room, my small grow room
mostly only used for green to dry weed if its raining and humid
but mad cyclone time, needed it to get rid of mold risks and rain leaks through no windows
(a roof hit our windows)

Anyway this idea worked for a while..kitty litter is useful for so many things..
.not sure how long it will last though.
but this works if needing a quick solution for a few weeks,
if it moistens up, kitty litter is less than $20 a bag to refill drawers so cheaper than a dehumidifier
no heat, i wouldn't attach it to tent etc i would dehumidify room surrounding tent or grow room.

Big scale this wont be a long lasting solution.

It did work for lowering mold and rain in my no window cyclone damaged
apartment for a few weeks though so it might be worth a shot.

Click to expand...

Small as in footprint.

Interesting, I'll do your post justice.

It doesnt look strong enough for the job, my dehuey is much more robust just reading the specs in title. I need the dehuey performance with out the heat or a minisplit basically a actual ac system for a bedroom that works the same way a home ac does. Just circulates air conditioning it to desired temp absorbing the whole rooms heat energy.

I learned all that when hvac team was here fixing our ac. To then find my grow room exausting outside being the new problem.

Wastei said:

My dehu cost about 500$ and its very efficient. It's specced for 120m2 and I only use it in 20m2 so it doesn't need to run for long. It's also one of the best unit you can buy locally with som own features like active defrosting.

Aim for the best and most efficient unit you can find, the cheapest ones doesn't work for shit IMO. The cheaper are good for repurpose to build wine coolers and water chillers. The unit I repurposed all these years ago were 150w at full load and the new one is 420w, both use R290 as coolant medium.

Click to expand...

Thx. Definitely the more efficient the less heat it'll dump. What did you buy for $500?

For me the minisplit sounds overkill but it would help. With smaller plants using less light experimenting since I lost a whole grow anyway.. Seems to of put less heat and using 9/15 flower schedule might help a lot but this stubborn dehuey will make it 85 in room 90F in grow tents.

Mini split would just be stepping in when home ac is off and would give legit performance. I dont think it would be horrible on the grow bill. Hell that might be fine other than terpene loss but I live in the room and 85F is not comfortable.

medidedicated said:

My search saying they still heat up a room but only slightly. Is it implying in our uses it still can unless you have the right space to make it run less often or more often but a bigger room to not notice much temp rising?

Click to expand...

They are hard to find. Probably for the 20 I looked at only one was a non-compressor.

stawawager said:

Thx. Definitely the more efficient the less heat it'll dump. What did you buy for $500?

Click to expand...

Im not sure what they mean by that. My dehuey being oversized for room should be same thing, maybe they mean due to not needing to heat a space? The specs on anti frost units seem to perform the same. Even the watts are higher on this active frost unit Im looking at.

medidedicated said:

It doesnt look strong enough for the job, my dehuey is much more robust just reading the specs in title. I need the dehuey performance with out the heat or a minisplit basically a actual ac system for a bedroom that works the same way a home ac does. Just circulates air conditioning it to desired temp absorbing the whole rooms heat energy.

I learned all that when hvac team was here fixing our ac. To then find my grow room exausting outside being the new problem.

Click to expand...

Ok look at Aprilaire. I have one of theirs and love it.

curious2garden said:

Ok look at Aprilaire. I have one of theirs and love it.

AprilAire E080 80-Pint Professional-Grade Basement Dehumidifier

The Aprilaire Model E080 Basement Dehumidifier is a compact unit perfect for townhouses, condos, and small homes with a closet HVAC unit.

shop.aprilaire.com

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Thats cool it can do the whole house for 600w but a lot of money for no active defrost which our place is below 65F often. I like the filter, I got dust all over mine, need to clean it. I just think its due to die. So I could flower anywhere in home is cool but maybe the minisplit is a better investment.

I do plan to grow fuller tents again likely needing full power vs half on the leds. otherwise lights can compare to the dehuey heat. It just gets so damn hot as it pulses its refeigerant. Whatever its doing. I was hoping I could make it work as is I will know this spring.

I forget it might not be so bad now I do 9/15 light schedule. If it dont I think a minisit thats just on as needed in spring/fall would make more sense, I dont have anywhere else to flower for a while. Veg tent in basement is all.

The mini split just keeps checking out as a better option. Does it at least not compile heat? Doesnt say. I appreciate you thinking I can install one myself Il keep looking into it if it dont involve messing with refrigerant and eletrical adding a new circuit.

I doubt I can paired with the home owners probably not approving myself to. I dont mind paying for it this hobby saves thousands. Sorry to talk your ear off I just kinda in OPs position wondering if theres other ways. Not looking like it. I think its going to struggle a bit without one.