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+-- Thread: Dehumidifiers in the Shop (/showthread.php?tid=7346832)
Dehumidifiers in the Shop - dg152 - 03-04-2019
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
RE: Dehumidifiers in the Shop - Cecil - 03-04-2019
(03-04-2019, 05:50 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.
RE: Dehumidifiers in the Shop - fishhh4 - 03-04-2019
Where are you at? North freezing dew point swings...South humidity?
RE: Dehumidifiers in the Shop - jteneyck - 03-04-2019
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
RE: Dehumidifiers in the Shop - srv52761 - 03-04-2019
(03-04-2019, 05:50 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.
RE: Dehumidifiers in the Shop - toolmiser - 03-04-2019
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.
RE: Dehumidifiers in the Shop - stillgotten - 03-05-2019
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.
RE: Dehumidifiers in the Shop - fredhargis - 03-05-2019
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.
RE: Dehumidifiers in the Shop - shoottmx - 03-05-2019
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
RE: Dehumidifiers in the Shop - jteneyck - 03-05-2019
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