Can I pipe two bathroom fans to one roof vent?
I have two adjacent bathrooms that I would like to add fans in.
The fans would be located within 5-6 feet of each other and could easily exit the roof at the same point.
If I remember correctly, fans all have a "check valve" or flapper preventing back flow and drafting back into the room.
With that in mind, if they were both plumbed into one vent, it should be no problem right? Turn one fan on, the flap on the other one closes. Turn both on and they both vent.
Good idea or bad? Saves me a little bit of money and one hole in the roof.
splitter-combiner for two inlets.
i think it may be possible to arrange for one fan to suck air equally from two inlets. So both are ON or both are OFF. Not one or the other.
a month ago i looked on the Broan and Nutone web sites (they are sister companies), and I saw a remote-installed squirrel cage fan that came with two vent inlets attached to a splitter-combiner, so when it was ON, it pulled from both inlets. Hopefully equally, but that would depend on the length and elbows after the combiner-splitter.
I have a squirrel cage installed remotely. The noise is nice because it is only the noise of air moving through the vent opening, not a motor noise. I am planning on putting a variable speed controller on it because it is too powerful by a factor or two or three, and I would like to be able to leave it ON, on "low", for hours and hours, when the outdoor temperature is just right.