For those of you that build or design homes I have a question. Why do you,
or would you, locate a Heating and Air vent to supply air to a water closet?
I mean you have a room with just a toilet in it and hopefully an exhaust
fan, which I can see the need for, but then many place a Heating and Air
vent right there in the same room, near the exhaust fan. I mean, naturally,
the heating and air vents feed air into the room to be circulated back to
the Heating and Air return thereby pulling whatever other air exist inside
the water closet, sometimes not the most desirable air mind you, back into
the other parts of the house where you wouldn't necessarily want that, less
than desirable, air?
Is there some code or practice I'm not thinking of or is this just something
someone hasn't really thought about? If there is no code to the contrary my
choice is never to place an air source that will be sucked back to the
return in a room for the purpose of a water closet. Same principal almost
when you put a vent into a half bath that is located right off the kitchen
and usually has no outside wall. Why the need for a Heating and Air vent
there as that room is going to assume the temperature of the area around it
which is already heated and cooled and thereby you eliminate the possibly
that you will suck distasteful odors from the half bath through the kitchen
on their way to the Central Heat and Air return.
Maybe it's much ado about nothing but I'm just curious about it.