Bathroom Vent fan, do I have to?
#1
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The contractor that replaced my furnace and water heater told me that if I touch a circuit (make changes) then I have to bring the entire circuit up to todays code. The previous owner spliced a garage door opener into a lighting circuit that was connected to a 1/2 bath receptacle for power. I installed a sub panel in the garage removing that circuit and placing it in the sub panel. I cut the feed from the 1/2 bath. The bathroom has no vent fan. Since I removed the feed going to the garage lights do I now have to install a vent fan in the 1/2 bath? Do I have to remove all of the old cloth wound wire and replace it with new Romex wire? The 1/2 bath does have a window.

#3
It used to be that a half bath with window didn't require an exhaust fan.
I'm not sure if that's still true. Now when we wire any bathroom it's installed automatically.
If you were renovating the bathroom you would be required to make the change.
I'm not sure if that's still true. Now when we wire any bathroom it's installed automatically.
If you were renovating the bathroom you would be required to make the change.
#4
Check with your local inspector to see what he has to say. 4-5 years ago I added a half bath. There was no window and there was no fan. According to the local inspector fans were required only for baths with a tub or shower. There was a time when a full bath did not require a fan IF there was a window. That may have changed or again, it may be a local thing.
Incidentally, my half bath now has a vent fan. I found out that it was required by my wife's building code. The point is that a vent fan in a half bath is more opf a courtesy than moisture control.
Incidentally, my half bath now has a vent fan. I found out that it was required by my wife's building code. The point is that a vent fan in a half bath is more opf a courtesy than moisture control.
#5
The point is that a vent fan in a half bath is more of a courtesy than moisture control.


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I just open the window and close the door when ever I ate some beans before. I think the contractor saw all the electrical work I was doing and tried to goad me into letting him put the fan in. I can hang a box and run the wiring I am just starting to run a little short of cash right now and my credit cards are becoming beasts!!!!!! This remodel is starting to cause my wallet to loose a lot of weight if you know what I mean.