bathroom vents

[rh71]

is it normal that it lets cold air from the outside in? I didn't notice this draft last winter. Any way to help this?

 

[Ichinisan]

1. Close the door when you're not in the bathroom.
2. Turn the fan on while you're in there.

 

[Squisher]

The fan unit and the outside vent unit should both have flapper doors that open only when the fan is on. Make sure both are closed fully when the fan is off.


IF, the fan vents out an outside wall and you have access to the ducting, you can alter the ductwork so that there is a goose neck in it so that it travels downward before it exits the house. That way any cold air entering back into the ductwork has to travel upward and cold air doesn't really like to do this.

 

[SandEagle]

there was this one time i was sitting on the crapper at work and the dude in the next stall starting talking on his cell phone and making moaning noises. then he proceeded to ask me for a square. hey f you buddy, i have no square to spare. 😡

/vent

 

[Ichinisan]

there was this one time i was sitting on the crapper at work and the dude in the next stall starting talking on his cell phone and making moaning noises. then he proceeded to ask me for a square. hey f you buddy, i have no square to spare. 😡

/vent

A "square?" You mean a single piece of toilet tissue?

How does anyone wipe with a single piece? The only reason they are that size is so that you can adjust your length more precisely. You're not expected to wipe with a single square.

That's just... D:

 

[KevinCU]

A "square?" You mean a single piece of toilet tissue?

How does anyone wipe with a single piece? The only reason they are that size is so that you can adjust your length more precisely. You're not expected to wipe with a single square.

That's just... D:

I guess you missed that episode. 🙁

 

[Jimzz]

The fan unit and the outside vent unit should both have flapper doors that open only when the fan is on. Make sure both are closed fully when the fan is off.


IF, the fan vents out an outside wall and you have access to the ducting, you can alter the ductwork so that there is a goose neck in it so that it travels downward before it exits the house. That way any cold air entering back into the ductwork has to travel upward and cold air doesn't really like to do this.

Yea should be a damper on the fan unit and also one on the outside vent.

You need 1 on each as 1 by itself will not work well.

 

[Mixolydian]

The fan unit and the outside vent unit should both have flapper doors that open only when the fan is on. Make sure both are closed fully when the fan is off.

This.

 

[Imp]

Our bathroom is like that too. Early winter morning taking a dump and you get a cold stream of air running down your body because the fan is directly overhead.

The vents should be covered outside and only swing open when the fan's on, but remember that a flap of metal isn't the most air-tight thing in the world. Or maybe our flap is just shittilly made.

 

[rh71]

The bathroom in question is on the 1st floor but it's in the "middle" of the house so I don't see any vent-out from the ground standing outside. I suppose it goes all the way to the 2nd floor roof?

I opened up the vent in the bathroom and don't see any flapper on the unit... perhaps it's on the top that I can't see? I see the fan blades in a cylinder shape and it spins around, nothing beyond that.

None of the 2nd floor bathrooms are drafty/cold like this one.

 

[Squisher]

Yeah, the flapper should be on the round exit of the fan unit where it enters the the duct work (probably 3" round). Seeing how it's from a bath, lint might be stopping it from closing fully. Like I said, there should be one on a roof vent too, bees and birds nests can be enemies here.

 

[Squisher]

Typical fan:

Typical roof vent/weather hood:

Notice: I used the word should a lot in my first post because some older or cheap models may not have a flapper.