Dehumidifiers in the Shop
#11
  
The last couple of times I've come home after a week or longer of being gone all my cast iron equipment has developed a light coating of rust.  The first time I did what I usually do when that happens - I remove the rust and put a coating of paste wax on.  A couple of months later I returned to find another light coating of rust.  I'm going to do the same thing I did the first time but am thinking I may need a dehumidifier in the shop to reduce the RH.

Does anyone else use dehumidifiers?

BTW, I don't want to throw plastic over the tools because, among other reasons, I don't have a place to store it when I'm using the equipment.

Let me know what you think.

Doug
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#12
  Re: Dehumidifiers in the Shop by dg152 (The last couple of t...)
(03-04-2019, 06:50 PM)dg152 Wrote: The last couple of times I've come home after a week or longer of being gone all my cast iron equipment has developed a light coating of rust.  The first time I did what I usually do when that happens - I remove the rust and put a coating of paste wax on.  A couple of months later I returned to find another light coating of rust.  I'm going to do the same thing I did the first time but am thinking I may need a dehumidifier in the shop to reduce the RH.

Does anyone else use dehumidifiers?

BTW, I don't want to throw plastic over the tools because, among other reasons, I don't have a place to store it when I'm using the equipment.

Let me know what you think.

Doug

Yes, I use a dehumidifier.
I tried not believing.  That did not work, so now I just believe
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#13
  Re: Dehumidifiers in the Shop by dg152 (The last couple of t...)
Where are you at? North freezing dew point swings...South humidity?



If it can't kill you it probably ain't no good. Better living through chemicals.

 
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#14
  Re: Dehumidifiers in the Shop by dg152 (The last couple of t...)
I have a dehumidifier in my basement shop set to 55%.  Never comes on in the Winter here in the NE, runs quite a lot in the Summer.  No rust.

John
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#15
  Re: Dehumidifiers in the Shop by dg152 (The last couple of t...)
(03-04-2019, 06:50 PM)dg152 Wrote: Does anyone else use dehumidifiers?......


Let me know what you think.

Doug

In Iowa, 41° latitude,unheated detached garage...  dehumidifier from about mid April to mid October; heat source from mid October to mid April.  
Dehumidifier set to 50-55%:
Heat source is 60w incandescent bulb set inside my table saw on a timer, set to run from about 20:00 to 07:00.  I do have a moving blanket over my table saw to slow the heat loss.
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#16
  Re: Dehumidifiers in the Shop by dg152 (The last couple of t...)
I have a basement shop in Wisconsin, use dehumidifier set at 55 in summer, and 40 in the winter. Right now it reads 30-35, and hasn't run in 2 months. Yeah it is dry, but keeps the windows from frosting and needed to be refinished every other year.

Not a big problem with rust.
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#17
  Re: Dehumidifiers in the Shop by dg152 (The last couple of t...)
I'm interested in this thread as I'll definitely need a whole basement dehumidifier this spring. What brand and size does everyone have that is up to such a task, would have to be able to pump out the reservoir to a floor drain or slop sink.


Sorry OP not trying to hijack your thread, just expanding a little on the thought.
Bruce.
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#18
  Re: Dehumidifiers in the Shop by dg152 (The last couple of t...)
If you have a floor drain you won't need one with a pump, the water will just flow to the drain. But (IMHO) you have 2 choices. You can buy the high quality, last a very long time, and expensive brands like an April Aire or Santa Fe. These may run $1000 (haven't priced them recently) but will last a very long time and do a great job. Or, you can buy the cheap home models (pick a name, it seems they are mostly made by one or maybe 2 companies) and probably replace it every 3+ years or so. So far I've chosen option #2. 2 Dehumidifiers ago, I had a brand (Whirlpool, I think) that was recalled and they sent me a new one. I've been running it for 2 years now with no problems. When that recall happened the list of brand names the company must have been 30 or so names long.
I started with absolutely nothing. Now, thanks to years of hard work, careful planning, and perseverance, I find I still have most of it left.
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#19
  Re: Dehumidifiers in the Shop by dg152 (The last couple of t...)
I dehumidify during Maine summers set at 50% using an Idillis brand Lowes was selling several years ago. So far, so good. The basement is kinda long so I use a small fan running 24/7 to circulate air. In my previous basement shop I didn't have a floor drain but did have a laundry tub so I built a stand for the unit so it could gravity drain thru a hose into the tub.

g
I've only had one...in dog beers.

If hummus is made from Garbanzo beans, why isn't it called Garbanzus?
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#20
  Re: RE: Dehumidifiers in the Shop by stillgotten (I'm interested in th...)
Like Fred, I've had at least 3, 70 ppd units in the past 10 years; Frigidaire, Soleus, can't remember.  All died within 4 years, one after only 1 year.  That one I returned and another I got replaced under recall.  My 30 year old General, on the other hand, is still running fine.  I only "upgraded" for more capacity and because I used the General in my dehumidification kiln.  Even though the new ones don't last long I haven't been convinced to spend $1K or more for a higher quality brand.  

My shop is about 700 ft^2 or so.  The 30 ppd General would run hard in the Summer to keep up.  The larger 70 ppd units handle it more easily.  Some newer models have built in pumps.  I just set mine up on a box and connect a hose from the unit across the floor to my sump pump.  

John
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