ᐅ Moisture in the Laundry Room – Should You Ventilate or Use a Dehumidifier?
Created on: 19 May 2022 01:31
H
HubiTrubi40
Hello everyone,
The humidity in our laundry room is too high. It’s not a heated basement; our heating system is located on the upper floor (how convenient 🙁 ). There is a window there, but I haven’t figured out yet when it’s best to ventilate—during the day, at night, or while the washing machine/dryer is running. In any case, my humidity meter shows over 70%. I’ve heard that above 70% it becomes critical over time.
Does it make sense to use a dehumidifier? If yes, would a desiccant-based one or an electric one be better, or would simple ventilation solve the problem?
The humidity in our laundry room is too high. It’s not a heated basement; our heating system is located on the upper floor (how convenient 🙁 ). There is a window there, but I haven’t figured out yet when it’s best to ventilate—during the day, at night, or while the washing machine/dryer is running. In any case, my humidity meter shows over 70%. I’ve heard that above 70% it becomes critical over time.
Does it make sense to use a dehumidifier? If yes, would a desiccant-based one or an electric one be better, or would simple ventilation solve the problem?
N
Neubau202219 May 2022 09:28driver55 schrieb:
Cool tips again here…
@Neubau2022: why do we need to hear about your Fischer screed…? Do you even read what others write, or do you just complain? Having a neighbor like you means it’s better to look for a new house right away...
I said that right now it’s difficult to ventilate when it’s colder outside because we are experiencing very high temperatures. I discussed this with the professional who set up the construction dryers. He said that normal quick ventilation (shock ventilation) is sufficient for us and that theory is theory, but practice is practice.
By the way, your "Brain Bug" comment really contributed a lot….
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WilderSueden19 May 2022 09:41Where is the moisture coming from in your case? From inside or outside?
If you cool down 30 degrees Celsius (86°F) warm air to basement temperature, the relative humidity increases significantly. Ventilating won’t help much then. Even airing out in the morning doesn’t make much difference because morning air has high relative humidity and, at current temperatures, is probably still warmer than your basement.
If you hang laundry down there or if the dryer is blowing moist air into the basement, that’s where I would focus.
If you cool down 30 degrees Celsius (86°F) warm air to basement temperature, the relative humidity increases significantly. Ventilating won’t help much then. Even airing out in the morning doesn’t make much difference because morning air has high relative humidity and, at current temperatures, is probably still warmer than your basement.
If you hang laundry down there or if the dryer is blowing moist air into the basement, that’s where I would focus.
Using desiccant granules is not even worth trying.
The solution would be an automatic dehumidifier; you can get one for around 100-200 EUR. You set the target humidity level (e.g., 55%) and it runs only when that level is exceeded.
What kind of dryer do you have? Probably a condenser dryer?
Our old dryer released a lot of moisture to the outside. With the heat pump dryer, it was much better, and after installing the drain hose directly into the drain (instead of a collection container), it was no longer an issue and always dry. So you might consider whether to invest in a dehumidifier (which has ongoing operating costs) or possibly get a newer, more efficient dryer with a drain hose from the start. Of course, only if my guess about the condenser dryer is correct 🙂
The solution would be an automatic dehumidifier; you can get one for around 100-200 EUR. You set the target humidity level (e.g., 55%) and it runs only when that level is exceeded.
What kind of dryer do you have? Probably a condenser dryer?
Our old dryer released a lot of moisture to the outside. With the heat pump dryer, it was much better, and after installing the drain hose directly into the drain (instead of a collection container), it was no longer an issue and always dry. So you might consider whether to invest in a dehumidifier (which has ongoing operating costs) or possibly get a newer, more efficient dryer with a drain hose from the start. Of course, only if my guess about the condenser dryer is correct 🙂
I
ismon_rlp19 May 2022 10:40Is the general rule that you should only ventilate the basement when it is cooler outside than inside? What if it is warmer outside but the air is drier than in the basement? Currently, we have about 28°C (82°F) and around 40% relative humidity outside during the day. The basement is at 19°C (66°F) with approximately 60% relative humidity.
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WilderSueden19 May 2022 10:55It depends on the absolute humidity. In your example, the relative humidity of the cooled outside air is 66%, so by ventilating, you are actually bringing moisture inside.
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