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Dehumidifier for shop/shed
Posted on 7/24/22 at 11:30 am
Posted on 7/24/22 at 11:30 am
I built a shop approximately 1800 sq. ft. Its a Metal building and fully insulated including the doors. The issue is it feels or hot muggy all the time. Does any one have experience with putting a dehumidifier in the building to make it comfortable to be in there. Recommendation would be helpful. I have a drain across the length of the shed so a continues drain if needed would not be a problem also would a timer be helpful or just set the humidity level
8
Posted on 7/24/22 at 11:34 am to TeaParty
Humidifiers are just A/C's without the cooling function. They heat up your space. I am not a fan.
Posted on 7/24/22 at 11:49 am to TeaParty
If it’s 1800 SF, stop calling it a shed. 
You’re going to need a pretty fair sized unit (~70 pints) for that size building. Is the shop already conditioned?
You’re going to need a pretty fair sized unit (~70 pints) for that size building. Is the shop already conditioned?
Posted on 7/24/22 at 11:51 am to armsdealer
Homelabs 4500 sq ft dehumidifier.
I’ve had this in my little shed for 18 months or so, it doesn’t run a whole lot because my area is so tiny but it removes a lot of moisture. I just set the humidity for 50 and it runs to maintain that. It does put out warm air but there’s no way you’d be able to feel a temperature difference in 1800 sq ft.
I’ve had this in my little shed for 18 months or so, it doesn’t run a whole lot because my area is so tiny but it removes a lot of moisture. I just set the humidity for 50 and it runs to maintain that. It does put out warm air but there’s no way you’d be able to feel a temperature difference in 1800 sq ft.
Posted on 7/24/22 at 12:08 pm to GeauxldMember
No no air conditioner only full insulation Oh i might have left out a significant item. It has 16 foot walls in case I wanted to get an RV in there
This post was edited on 7/24/22 at 12:11 pm
Posted on 7/24/22 at 1:26 pm to TeaParty
Yeah I think for the cost difference I’d probably get the bigger one. I just saw the bigger homelabs one Amazon 140 pint homelabs
Posted on 7/24/22 at 2:20 pm to TeaParty
quote:
I built a shop approximately 1800 sq. ft. Its a Metal building and fully insulated including the doors. The issue is it feels or hot muggy all the time.
all you need for this is several evenly spaced temp controlled exhaust fans to draw out the heated air at the peak and bring in fresh air from ground level air grill intakes
dont overthink it, if you dont want the exhaust fans then you need to add HVAC to the building for humidity control
Posted on 7/24/22 at 2:40 pm to keakar
quote:
all you need for this is several evenly spaced temp controlled exhaust fans to draw out the heated air at the peak and bring in fresh air from ground level air grill intakes
dont overthink it, if you dont want the exhaust fans then you need to add HVAC to the building for humidity control
that would work. Except I had it built with no exhaust. Straight up walls and roof. As you wrote your reply I was actually outside running a big fan from my man door from inside to outside to see what that gets me.
Posted on 7/25/22 at 5:47 am to TeaParty
In a similar boat as OP with slight smaller space. It has an HVAC but really don’t see Entergy prices coming down any time soon, and could live with warmer temp if not muggy. It currently will range 70-80% when HVAC hasn’t come on for a bit.
Posted on 7/25/22 at 8:56 am to TaderSalad
I had a "1500 sf" rated dehumidifier in my insulated 2 car garage before adding a mini split. It reduced humidity from 80's to 50's.... very noticable. Running 24/7 the impact to electric bill was ~$30/mo or so.
You will definitely need a shop fan running to circulate the air.
You will definitely need a shop fan running to circulate the air.
This post was edited on 7/25/22 at 9:05 am
Posted on 7/25/22 at 9:58 am to SwampCollie
That’s a good point, a lot of them pull 4-8 amps when running. That could be a fifty cents to three dollars a day depending on energy costs and how often they run.
Posted on 7/25/22 at 10:10 am to TeaParty
I bought this one for my Travel trailer yesterday. We ran it in the house last night and it did some serious work. Emptied the bin twice
Posted on 7/25/22 at 11:47 am to TeaParty
I use a Santa Fe Classic Dehumidifier and that thing is a tank. Pricey but energy efficient and well built to last.
Posted on 7/25/22 at 1:03 pm to TeaParty
Mini-split
Posted on 7/25/22 at 1:39 pm to SwampCollie
quote:
I had a "1500 sf" rated dehumidifier in my insulated 2 car garage before adding a mini split. It reduced humidity from 80's to 50's.... very noticable. Running 24/7 the impact to electric bill was ~$30/mo or so.
Well that's something I did not know. How much does you mini split cost to run. I assume you are running the MS with out the dehumidifier. I ask because my house HVAC has a separate dehumidifier running independent of the A/C due to a foam sealed attic
Posted on 7/25/22 at 1:41 pm to TheNolaClap
quote:
I use a Santa Fe Classic Dehumidifier and that thing is a tank. Pricey but energy efficient and well built to last.
Definitely pricey Any idea on operating cost
Posted on 7/25/22 at 2:15 pm to TeaParty
quote:
I assume you are running the MS with out the dehumidifier
correct
quote:
How much does you mini split cost to run
Almost net neutral from a KwH standpoint vs dehumidifier but price per kWh has gone up quite a bit year over year.....So, I'd est $50/mo or so
This post was edited on 7/25/22 at 2:17 pm
Posted on 7/25/22 at 3:50 pm to TaderSalad
Anyone aware of any affordable, direct drain (compact) dehumidifiers?
I’d love to mount one in the wall cavityy in my set up
I’d love to mount one in the wall cavityy in my set up
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