Questions tagged [dehumidifier]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
16
votes
6answers
4k views

"Continuous dehumidifier" randomly fills bucket and stops. Why?

Several "continuous" dehumidifiers all had the same problem. There is a bucket to collect water, and also an outlet for a hose where the water can flow out so water does not collect in the ...
1
vote
0answers
32 views

Basement humidity 80-90% with unsealed concrete foundation, how can wood moisture be OK?

In summer our home in west Massachusetts has a humidity level of 80--90% for months, which according to what I read can be a serious problem. However, my pinless moisture meter measures the wood beams ...
2
votes
1answer
35 views

Can I use a portable air conditioner/dehumidifier as a dehumidifier in the winter at cold temperatures?

My portable air conditioner can also be used as a dehumidifier. I can use it in the summer/spring both as air conditioner as well as dehumidifier, and it works really well as a dehumidifier under hot ...
3
votes
2answers
59 views

Is the float switch broken?

Does everything look alright or is there something wrong with the float switch? Thanks! Friedrich model D35B1A. The "bucket full" light refuses to turn off. I think the float switch is in ...
0
votes
2answers
79 views

Dehumidifier and spray water effect on curing concrete basement patch

Internal trench waterproof system just installed in basement that includes some new concrete in July. Will a dehumidifier hinder optimal curing of the concrete and for how long? Also should I spray ...
0
votes
0answers
25 views

Should I be installing a dehumidifier inlet with the air supply or just in the crawlspace?

Built our home five years ago and our crawlspace is 2300 sq ft. For awhile ran a residential dehumidifier till it went out. I do understand that placing this in the crawlspace wasnt the best ideal ...
1
vote
2answers
56 views

Why doesn't my condensate pump drain very well?

I'm working on a crawl space encapsulation. One of the last steps for me to do is to setup a dehumidifier. I bought a Santa Fe Compact 70 and a condensate pump to go with it. I'm discharging it about ...
1
vote
1answer
42 views

Dehumidification settings cannot reach level

I just moved into a new home and I live in hot, humid, Louisiana. We have two AC units, one upstairs and one downstairs. The unit upstairs has a dehumidifier but the one downstairs does not. I have ...
0
votes
1answer
40 views

How to vent a 1/4" drain tube?

I have a dehumidifier which is hooked to a 1/4" drain tube. The drain tube is not functioning because I think there is some kind of vacuum or pressure differential thing happening. I know that ...
2
votes
1answer
57 views

Humidity in cool basement

My basement is about 61 degrees (Fahrenheit). I have a dehumidifier and i think it is working fine in that it is removing water from the air. When I first got it the humidity was about 70 % and the ...
0
votes
1answer
108 views

Confused about humidity levels in basement - a math problem

I can't work out the math on this one. I have a basement. The size is about 10,000 cubic feet (about 35 by 32 by 9). I bought a dehumidifier that says the humidity is 70 %. I want to get this below ...
0
votes
0answers
41 views

Window AC + Floor Dehumidifier - great combo or waste of money?

I have a ~20x20 room that also houses most of the homes network/server hardware in a rack, my office (a gaming pc and 3 monitors, a TV, and my drum set. I had thought I had a properly sized Window AC ...
0
votes
1answer
56 views

How big of a transfer grille do I need between two 500 sqft rooms if I want to balance humidity

So I have two basement rooms about 500 sqft each and I want to balance the humidity between both rooms. One room has a dehumidifier and drain so I'd like to cut a transfer grille between the two ...
1
vote
3answers
82 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 ...
3
votes
1answer
147 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 ...
0
votes
0answers
27 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 ...
0
votes
0answers
110 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 ...
0
votes
2answers
56 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 ...
0
votes
1answer
83 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 ...
1
vote
2answers
71 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 ...
0
votes
2answers
148 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 ...
0
votes
0answers
36 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 ...
7
votes
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 ...
-1
votes
1answer
79 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 ...
0
votes
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 ...
1
vote
2answers
739 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. ...
0
votes
2answers
688 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 ...
0
votes
0answers
67 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 ...
-1
votes
1answer
58 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 ...
0
votes
1answer
717 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
votes
1answer
42 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 ...
0
votes
2answers
234 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 ...
0
votes
3answers
421 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 ...
0
votes
3answers
540 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?
0
votes
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"
0
votes
1answer
1k 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 ...
4
votes
3answers
663 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 ...
1
vote
0answers
46 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 ...
1
vote
1answer
61 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 ...
0
votes
1answer
61 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
votes
1answer
4k 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, ...
0
votes
1answer
56 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
votes
1answer
59 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 ...
0
votes
0answers
40 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 ...
1
vote
3answers
874 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
votes
1answer
4k 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 ...
0
votes
1answer
107 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 ...
0
votes
1answer
1k 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....
0
votes
2answers
277 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
vote
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: