Questions tagged [dehumidifier]

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2answers
53 views

Should the foundation wall be insulated when encapsulating a crawl space, or not?

I've seen conflicting info on this. Some sources say that you shouldn't insulate your foundation wall because moisture can get trapped between the insulation and the wall. Others say that the ...
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1answer
120 views

Why can't an encapsulated and dehumidified crawl space have vents sealed off?

I found SECTION R408.3 of the International Residential Code which says that unvented crawl spaces are only allowed if one of the following is true: There is exhaust ventilation fan running ...
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0answers
24 views

HVAC auxiliary fan relay wiring help

I set up a two zone whole house dehumidifier system with 24v no/nc dampers, primary and secondary zones. the primary zone is controlled by a Aprilaire model 76 external control and the secondary zone ...
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0answers
84 views

Dehumidifier shuts off after a few seconds

Steps to reproduce: Plug in dehumidifier. The green LED goes on. Press the power button on the control panel (lower free hanging PCB in picture). The fan starts running. The compressor doesn’t turn ...
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2answers
43 views

Is a condensing tankless heater that expels excess water outside also a dehumidifier?

I understand that a condensing tankless water heater will recycle that extra heat and only vent the heat that it cannot use; this is why they have a greater efficiency. But the water that condenses ...
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1answer
67 views

Dehumidifier produces 100 g of water every day. No effect on relative humidity

First, my calculations. Let's assume a sealed 5x3x2 meters room and ambient temperature of 20 C. Volume is 30 cubic meters. According to this table, at 100% relative humidity there would be 17 g of ...
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2answers
57 views

Why does condensation appear on surface of window, but not all of them?

When I woke up this morning (a beautiful winter morning), I opened my curtains and noticed that the middle pane was covered in surface condensation, but the two adjacent panes were almost completely ...
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2answers
88 views

Why is my aircon increasing relative humidity?

My HVAC unit in the bedroom seems to increase humidity when turned on. I live in the tropics so humidity is 50-80% on average. Even if its 55% outside turning aircon on it seems to reach a level ...
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0answers
28 views

How to best position a dehumidifier

Want to ask about the best orientation for a portable dehumidifier to allow cloths to dry the quickest. Take this top down drawing of a portable dehumidifier as an example: Air inlets are at the two ...
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7answers
5k views

I've moved into a new apartment for a while. Is this mold? Is it safe to continue live here?

I've moved into a new apartment for a while. Lately, I found these molds on my things. Is it safe to continue living here? Do you think a dehumidifier will solve this problem? I don't want all of my ...
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1answer
62 views

Can I use dehumidifier to tackle mouldy bathroom

we had a new bathroom built as an extension about 20 years ago. It didn't have any wallpaper or anything on it for a while, just the exposed brown plaster. It was painted using water based paint a few ...
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0answers
21 views

Dehumidifier Repair - Compressor Heats up but Coils and Lines are Room Temp, How to Troubleshoot

I have a new Dehumidifier that has never worked. Why I haven't exchanged it or returned it is a long, convoluted story. It powers on, fan runs, compressor turns on, but no water ever collects. Once ...
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2answers
211 views

Dehumidifying a basement apartment--protable AC Dry Mode or dedicated dehumidifier?

We just moved into a newly renovated basement apartment and the humidity level is currently at 80% based on a digital hygrometer made by Acurite, at 11.25pm EST. Portable AC is off. Is 77 degree. ...
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2answers
333 views

Is it possible to recharge a dehumidifier

I have an old Santa Fe dehumidifier capable of removing 110 pints of water per day. It has recently stopped working and the company diagnosed it over the phone as being low on R22. But they wouldn't ...
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0answers
33 views

Trane XV-18 Dehumidification - Heat Strip

We have a new home with a Trane XV-18 system. In addition to its efficiency, it is touted to to be able to control humidity down to 45%. However, it has proven that it is worse at controlling ...
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1answer
32 views

DEHUMIDIFIER STAYING AT 75

I have a dehumidifier and have it for a few years so I am familiar with how they work. I have a GE 65pt and it was working fine until today. The basement is very warm (it is humid outside) and the ...
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1answer
310 views

Is a peltier-based dehumidifier a good choice to prevent condensation?

I have a non-heated, enclosed space (crawl space that does have a vapor barrier). During a limited number of days in the spring or fall, I get condensation on things that stay cold while the air ...
-1
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1answer
36 views

Dehumidifier with power socket to hang on the wall [closed]

Goodmorning everyone! I am looking for a dehumidifier to put in the garage that has the following features: the plug to be inserted into the socket (unusual as a thing because usually dehumidifiers ...
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2answers
195 views

Can I drain a dehumidifier pump into my dishwasher?

Probably a really dumb question. I handwash dishes and use my dishwasher as glorified storage, so I was thinking I could stick the hose coming out of my dehumidifier pump into the dishwasher and just ...
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3answers
285 views

How can I keep my computers cool in a 100 degree house?

I live in a tiny house of sorts and my AC doesn't run while I'm not there. I have two desktop servers that I use for my work which are currently stored elsewhere, but I'd really like to move them to ...
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3answers
234 views

Would two 70 pint dehumidifiers work as well as one 140 pint unit?

If so why are dehumidifiers above 70 pt so much more expensive? pros cons? Having two 70 pt in same room vs 1 140 pt?
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0answers
20 views

Amana Humidity settings

I have a very old Amana dehumidifier. The setting is a range - Humid - Dry with 5 settings in between. Can anyone explain would the lowest humidity be "humid" or "dry"
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1answer
960 views

Clothes dryer causing humidity problems in garage - would extraction fan help?

We have a double garage with a high ceiling which is also where our laundry is. We have a problem with humidity in there due to the clothes dryer being in there which is used very regularly. This is ...
3
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3answers
469 views

Is it wrong to install both a whole house humidifier and a whole house de-humidifier?

I live nearish Pittsburgh. Our summers can get pretty hot and humid and our winters can get pretty cold. We have been planning to get a whole house humidifier because the house gets really dry in ...
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0answers
40 views

Do I need to vent a crawlspace?

We just completed a 20x20 great room addition on the side of our house with a 4 foot crawl space and poured concrete floor. There is a 4’ by 4’ cut through to access this crawl space from the existing ...
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1answer
55 views

To reduce damp: heat or dehumidifier?

We have one room of a house which isn't much used, so we don't turn on the heating in it, or wouldn't except that it gets damp, so mold is a concern. For reducing damp, is it more efficient to turn ...
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1answer
55 views

Whole house dehumidifier- freestanding vs vented

I’m considering the purchase of a Dehumidifier for our basement, to avoid mustiness in the unfinished/unconditioned portion. I want a nicer quality HVAC-grade unit, both for energy-usage reasons and ...
2
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1answer
2k views

Why is my air conditioner running when the house is below the set temperature?

We recently had a whole new system installed for HVAC. We had a lennox furnace with dehumidifier and UV thing, along with the exterior lennox condenser for A/C. We have the iComfort S30 thermostat, ...
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1answer
55 views

Dehumidifier Does not work and reports incorrect humidity [closed]

I've looked through a bunch of other DIY sites and the questions on here but couldn't find the exact issue I'm facing. I have a dehumidifier in my basement that is set to run continuously and drain ...
0
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1answer
57 views

dehumidifier not filling anymore

Dehumidifier has been working just fine until the last time I emptied it and replaced the catch bin. Now the thing just keeps running but not dehumidifying. The catch bin has no water in it. I ...
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0answers
38 views

Will calcium chloride still work under a coffee filter?

I have some disposable paper coffee filters, shallow glass jars and canning lids. I can use the ring part of the lids to affix the coffee filter over the jar's mouth. I am thinking of putting calcium ...
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3answers
663 views

Dehumidifier to help a portable AC?

I have asked How to get cold air from one room to another now I am thinking, the AC will be in the bedroom but what if I set up a dehumidifier (perhaps with a pump) in the kitchen connected directly ...
2
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1answer
3k views

OK to drain humidifier into basement floor drain

What I have in my basement could loosely be called a drain. It doesn't have a pipe. Best I can tell, they just cut a 3 inch hole in the floor; all you see is the rocks under the floor. I've been ...
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1answer
100 views

Dehumidifier degraded performance

I have a 2 year old dehumidifier that had been working fine until this past winter. As humidity started to increase I noticed the that the fins on the heat exchange developed frost. I checked the ...
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1answer
974 views

Can I run two lines INTO a single condensate pump?

Just moved into our first new (old) home and am quickly learning the "joys of homeownership"! In the basement, there is a Little Giant VCMA-15ULST condensate pump attached via PVC for air conditioning....
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2answers
246 views

What is this, and I can pump my dehumidifier water into it?

We got a dehumidifier with a water pump recently and I'm just now looking for a place to drain the water. What about using this p trap in the middle of this pic: I believe that brown rubber hose is ...
1
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1answer
1k views

Garden hose spins but does not unscrew

I am trying to detach a garden hose that is presently hooked to a dehumidifier. It spins freely but will not unscrew itself. Any idea what to do? Here is a picture:
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1answer
3k views

Blown fuse from a dehumidifier that has been working for years

I have a dehumidifier working 24/7 for about six months of the year. I've never moved it from the one outlet. Today the fuse keeps blowing. Nothing new is plugged in: no change whatsoever. I plug ...
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1answer
934 views

Meaning of small patches of shallow water on the basement floor

They have been happening now for a couple of months, which may or may not be related to the humid summers in the Northeastern United States. They appear without rhyme or reason, taking up a maximum of ...
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1answer
5k views

Dehumidifier Settings

I do not understand the settings on our dehumidifier. I want to increase the dehumidification of our basement. This is the rainiest summer I have ever seen. Our two-year-old laminate basement floor is ...
0
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1answer
83 views

Reset or repair stand alone dehumidifier?

After working well for a few years, a stand-alone dehumidifier has stopped taking water out of my basement. The dehumidifier drip tube does not even get wet. The noises tell me the fan and compressor ...
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0answers
184 views

Best replacement for broken in-wall dehumidifier?

My wife and I are new owners of a home with a partially finished basement of about 1,700 square feet. We found a dehumidifier mounted in a wood cutout in the wall near one end of the finished part. It ...
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1answer
112 views

Ductless Mini Split System for Cooling, Heating, and Dehumidification [closed]

I have a 22x24 foot building that I'd like to heat, cool, and dehumidify in East Texas. I'm specifically interested in purchasing a ductless mini split system to achieve this, but I have the ...
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2answers
1k views

Dehumidifying without an air-conditioner

First the details - This is a second home and we're here around 1-3 weekends a month. The house is a raised ranch style log house in the Southern Berkshires (MA) - a cold, rainy, damp place. The ...
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2answers
3k views

How to connect a “safety overflow switch” to “turn off a wall outlet”?

I have a "Little Giant" condensate pump VCMX-20 model. This pump comes with a "safety switch". The pump turns on when the water level gets to 1.2 inches. The "safety switch" will "do something" when ...
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1answer
991 views

Is it safe to turn off dehumidifier by switching power off

I am thinking of plugging my compressor dehumidifier to a smart switch so I can control it when it should turn on/off by controlling the power outlet. The dehumidifier has an "Auto Restart" feature ...
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1answer
821 views

Dry out some wet dirt in crawl space

We had a leak in a bathroom. Some of the water got under the house. Soaked up roughly 5 gallons of water from on top of the plastic sheeting as well as under it. Now we have wet dirt, moist plastic ...
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1answer
304 views

Dehumidifier with multiple float switches

I just bought a dehumidifier for my soon to be finished basement. Based on the basement layout I also got a condensate pump so I can pump up the water to drain it above the dehumidifier. The ...
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2answers
104 views

Humidity is driving me nuts [closed]

We live in PR. The humidity in my home reaches 80% on most days even when the temperature is 65 outside.Why is this?
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1answer
9k views

Why doesn't my dehumidifier stay on the humidity setting I select?

This is my 40 pint dehumidifier. I need help setting the humidity it just keeps jumping to 76• and I need it at somewhere around 45•.