anyone ever hear of tying a bathroom fan into the vent stack to avoid having 2 holes in the roof. I’m trying to think if there’s anything wrong with that , but have to admit ignorance. anything in the code against it anyone know of?
Edited 4/19/2006 5:34 am ET by alrightythen
Replies
ohhhh did you step in it...
here we go again....
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming
WOW!!! What a Ride!
Forget the primal scream, just ROAR!!!
lol...well the guy asked...so I said I'd look into it. I'd like to give a knowledgeable answer. so if you got any knowledge - I'm all ears.
methane gas and non-explosion proof electric motors comes to mind 1st....
the roon always smelling "poorly" is another....Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming<!----><!----><!---->
WOW!!! What a Ride!<!----><!---->
Forget the primal scream, just ROAR!!!
yup..after I thought about it, I realized about the potential problems/smell related to the gasses.
saw an episode of mythbusters where they tried to blow up a porta potty w an ignition source. turned out to be quite difficult to do up if you ever watch that show if it involves blowing something up they find a way to do it...lol
in the end, chances of blowing something up w methane gas source was quite unlikely, but not worth the chance.
go smell the vent atack...
methane....
be 4th of July...Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming<!----><!----><!---->
WOW!!! What a Ride!<!----><!---->
Forget the primal scream, just ROAR!!!
I sure wouldn't trust that flimsy back draft flap in the exhaust fan to keep odor, methane or anything from entering my house that's why I prefer the end gable with an exterior flapper for all exhaust fans including dryer vents.
thanks IMERC..you got me to think about it, and I realize the problem/danger with doing that. no way you want to give anything with potentially dangerous gasses a way back into the house.
Not to mention rain water entering the vent fan unit.
Put simply...no....it can't be done.
J. D. Reynolds
Home Improvements
I don't think that would be been an issue for him as the spot he was thinking of putting it, any rain water that would entered the t off would have had a slight incline and then have to travel horizontal about 10' or so before ever hitting the fan.
nevertheless, that is a good point raised.
The issue of gasses is all I need to tell him to put another hole in his roof.
he could also go about 10' the other way to the soffit. any preference between roof and soffit?
What about the potential for the fan to spark and ignite flammable or explosive gases? It's methane that gets vented and under the right circumstances, it could be a problem.
"I cut this piece four times and it's still too short."
yup..great point.
Is there a gable end wall available? That would be my first choice.
If its a half bath (no shower/tub), the soffet would be OK.
I personally avoid venting through the roof at all costs.....Mike Smith and others see it differently.....but I would go through the roof before dumping warm moist air (from a shower) out through a soffet.
J. D. Reynolds
Home Improvements
why do you like to avoid the soffit? can you clarify.. you mentioned avoiding roof at all costs, but prefer roof to soffit if tub or shower present.
I'll have to check what kinda bath it is.
gable wall about 10' away I guess
Edited 4/19/2006 2:07 pm ET by alrightythen
If that gable wall is available....go that route.
As for the soffet.....warm, moist, humid air exiting the exhaust outlet is going to rise. When it does, its either going to collect on the underside of the soffet....trouble....or find its way back up under the roof via soffet venting....even more trouble.
J. D. Reynolds
Home Improvements
ditto...Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming<!----><!----><!---->
WOW!!! What a Ride!<!----><!---->
Forget the primal scream, just ROAR!!!
Could you cut the plumbing stack in the attic and put a 3 inch (or properly sized) air admittance valve on the end, and then use the hole in the roof for the vent fan?
Thinking outside the box or code violation:)
Aaron