ᐅ Moisture in the Laundry Room – Should You Ventilate or Use a Dehumidifier?
Created on: 19 May 2022 01:31
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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?
M
Matthias4519 May 2022 10:55ismon_rlp schrieb:
Is the rule that you should only ventilate the basement when it is cooler outside than inside generally valid?
What if it is warmer outside but the air is drier than in the basement?
Currently, we have 28°C (82°F) and about 40% relative humidity outside during the day. The basement has 19°C (66°F) and around 60% relative humidity. Ventilating under these conditions will actually bring more moisture into the basement.
There are calculators that show how the relative humidity increases when warm, 28°C (82°F) air with 40% humidity cools down to 19°C (66°F).
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Matthias4519 May 2022 10:59Matthias45 schrieb:
This is how you end up ventilating even more moisture into your basement.
There are conversion tools that show how the humidity increases when warm air at 28°C (82°F) and 40% relative humidity cools down to 19°C (66°F). Your 28°C (82°F) and 40% relative humidity becomes around 66% at 19°C (66°F).
rick2018 schrieb:
Alternatively, a dehumidifier with a condensate drain can be used.You should be able to manage with around 200-300 EUR (220-330 USD) for that... In our case, the solution was to switch from a condenser dryer to a heat pump dryer with a drain. It had the same "additional cost," uses significantly less energy, and is more convenient since there is no need to empty the water container.
rick2018 schrieb:
A continuous solution would be a duct fan with heat recovery.
Alternatively, a dehumidifier with a condensate drain. However, these are not inexpensive and consume more electricity than a duct fan.
Otherwise, you will need to empty it at least once a day. Yes, we are currently using a dehumidifier with a condensate drain.
It costs us about 3.8 kWh per day... Not cheap, but better than a damp basement. A duct fan is planned in the medium term.
Neubau2022 schrieb:
Do you actually read what others write, or do you just complain? Having a neighbor like you makes anyone want to find a new house right away...Sure, take a look #2.@HubiTrubi40: where are the answers? That would be really helpful.
SoL schrieb:
It costs us about 3.8 kW per day...Please pay attention to the units… 3.8 kWh 😉 (3.8 kW (power) cannot be billed…)Similar topics