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Bathroom humidity in cool, damp climates?


Laura Corin
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How do you cope with a humid bathroom after a shower in winter? We have a radiator in the bathroom that runs off a central water-filled system, but it seems that the only way to clear the humidity is to run the extractor fan. Which extracts all the heat. So I get out of the shower into a cold room. The room is not fully tiled, and if the fan doesn't run during the shower, the high humidity quickly damages the paintwork.

Any ideas?

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A smallish dehumidifier 

I have this one from America.

https://www.amazon.com/gp/product/B079V7WV1N/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1  It's a little too big for a bathroom, but  it's the smallest size I could find that actually works.    I use it for my Master bed/bath combo.  I keep it running continuously during the day in the summer and as needed in the winter.   

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We have a dehumidifier set up near the bathroom which has helped the household moisture control greatly.   It’s a Ebac brand, made in Durham I believe.  Sometimes we crack the window when showering then close it after.......depends on the outside temperature.

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4 minutes ago, gardenmom5 said:

could you look into a different type of fan?  we have a fan that vents the moisture to the exterior (cool, wet climate), but it doesn't really cool off the room.

I'm a bit puzzled. Maybe your heater is stronger than mine. Essentially, the fan vents the wet air to the outside, and it takes time for the heater to warm the bathroom up again.

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29 minutes ago, Laura Corin said:

I'm a bit puzzled. Maybe your heater is stronger than mine. Essentially, the fan vents the wet air to the outside, and it takes time for the heater to warm the bathroom up again.

for a fan, I was picturing something like my grandmother had in her 1950's house.  the fan was built into the wall - you could see daylight through it.  later fans were more restricted, and vented into a pipe that went through the attic and through the roof.  they took moisture, but not nearly as much heat.  they are usually placed where the most moisture is generated, so it is evacuated before it has time to 'roam' all over the room.

 

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7 hours ago, gardenmom5 said:

for a fan, I was picturing something like my grandmother had in her 1950's house.  the fan was built into the wall - you could see daylight through it.  later fans were more restricted, and vented into a pipe that went through the attic and through the roof.  they took moisture, but not nearly as much heat.  they are usually placed where the most moisture is generated, so it is evacuated before it has time to 'roam' all over the room.

 

It's the latter kind and it's pretty much over the shower. The room is tiny though, just space for the toilet, basin and shower stall, no bathtub.

6 hours ago, Pen said:

A different type of paint that can handle wetness? 

 

It's already specialist bathroom paint.

5 hours ago, FuzzyCatz said:

We haven't had issues with heat and the fan running and we have radiators too.  I will say one thing we did was put a timer on the fan. So we  just set the fan to run an hour after a shower.  

That's what I would like to do, but when I did that in the past, the amount of moisture during the actual shower wrecked the paintwork.

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9 hours ago, HeighHo said:

limit the time -- navy shower or space out the time between showers.

squeegee shower walls when done

any damp towels get to dry outside the room

use towel warmer so you step into warm towel

I don't take long showers and I've turned down our excellent water pressure to try to reduce the issue. The radiator is a towel warmer, so I have a warm towel. Drying the towels elsewhere sounds good. Because the room is so small, the shower stall has two curved walls to save space, but I can squeegee the others.

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What about putting a standing or box fan in the bathroom?  You can turn it on after showers, but since it would be directed level to a wall instead of being tucked in the ceiling, it would help disperse the water and dry the area faster.  Plus, it wouldn't cool off the room, but move the air around (and the water) to possibly outside the room. 
Our master bath is half the size of the other bathrooms in the house and I keep a fan right outside my bathroom door for this reason.  It works relatively well for us, better than the ceiling fan.

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Our dehumidifier also warms the bathroom. Wonderful in cooler months before we’ve turned the furnace on, not as great in summer when it’s already too hot for me (no A/C). But it does a great job and is essential for preventing moisture issues (it only runs when we shower).

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