bath fan light

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roger

Moderator
Staff member
Location
Fl
Occupation
Retired Electrician
Re: bath fan light

Andrew, you are asking Big John to produce back up, yet you have produced no substantiation to your reasoning either.


Roger
 

jimwalker

Senior Member
Location
TAMPA FLORIDA
Re: bath fan light

Well if its a law in FL it is not enforced.
As to saying that a window (that stays closed)corrects anything and separate switch would now be fine is flat out rediculous in an air conditioned house.Methane gas is vented thru the roof by plumbing from sewage lines,(yes the lines also allow air so they can flush and don't suck traps dry).
Is the methane gas created as soon as we take a dump?(buying insurance monday on myself in case i exsplode).I am not saying we don't need fart fans but to force us to turn them on is ridiculous.
HOLD ON i just got a 911 call, customers fan stopped.
Will add this about moisture being dangerous.
If mildew gets started it is indeed a major problem.Ask insurance companies that are paying for claims over it.
If methane gas is that big of a problem then some kind of senser or timer would be used.
Reality time,John Doe uses the john and leaves for work 30 seconds after that flush.The fan goes off as he leaves the room.Whats the rating of that fan? how many minutes to clear the air ?
Am loading my 38 just incase this fight turns ugly LOL

[ January 04, 2004, 04:58 PM: Message edited by: jimwalker ]
 

pierre

Senior Member
Re: bath fan light

Andrew
One of the things you will realize on this and other forums is not everyone will agree with a particular train of thought. That is one of the strengths that the forums offer. Do not take it so personal, and try to refrain from comments that may not be necessary.
Right or wrong, people have opinions and some here will back them up with the proper information. Maybe you can find some info for your half of the discussion, that would help.
welcome to the forum :)

Pierre
 

jimwalker

Senior Member
Location
TAMPA FLORIDA
Re: bath fan light

This forum does help open our minds.Some times we all get hung on the idea we are right about something.With others help we get corrected and hopefully learn.I my self had egg on my face last week on something i thought i was 100% right on.
You said its a FL law, thats kool, if you could please copy and paste.Would think if its a law in Fl that others have similar laws.Never really took a fart fan to be all that important.We are electricians and wire to prints (that sometimes have flaws)if it shows 2 switches i wire 2 switches.
 

andrew

Member
Location
Florida
Re: bath fan light

Pierre, Thank You for your comments and believe me I am not the eneny here. I have been with this forum for close to 4 years but under a different name. (not trying to hide anything). I really don't take it personal for if I did I probably would not send a response. I just am trying to let people understand that because they feel that something is not right does not make it right. I am an Electrical Inspector and when some one questions whether I am right or not they say prove it. If what I am saying about what a bath fan is for (what a silly subject) I will be the first to admit if I am wrong. Please someone prove I am wrong about this!!!

Thank You Little John for your response,
Andrew
 

bennie

Esteemed Member
Re: bath fan light

The only way methane gas can build up in a bathroom, is to have a broken vent pipe or dry trap. The only thing an exhaust fan would do is suck all the methane gas from the city sewer system into the room, making the situation worse.

Methane gas that may be produced by the human digestive system is low in volume but high in odor.

Years ago, I invented a toilet seat with a built in exhaust manifold, to evacuate the gas before it entered the room itself. A patent search revealed 39 similar patents. There is now a commercial venture company that is manufacturing a similar product.

I count on the exhaust fan to change the air for odor control and evacuate the moisture from the shower.
 

iwire

Moderator
Staff member
Location
Massachusetts
Re: bath fan light

Andrew, I have not seen any port-a-johns at job sites with a fan, I have also not seen any explode, I have found them to be full of gas. :D

I live in an old house, no bathroom exhaust fan, should I evacuate the family? :p
 

jimwalker

Senior Member
Location
TAMPA FLORIDA
Re: bath fan light

andrew wrote:
I am an Electrical Inspector and when some one questions whether I am right or not they say prove it.


Ok prove it!!!!!
 
A

a.wayne3@verizon.net

Guest
Re: bath fan light

Jim our 2002 mechanical code now requires a fan in any bathroom regardless of a window or not.So I guess the explosion zone widened.Guess i`ll invest in fart fans
 

electricmanscott

Senior Member
Location
Boston, MA
Re: bath fan light

URGENT MESSAGE It turns out my kitchen has a sink which connects to the plumbing which connects to the bathroom. THERE IS NO FAN IN THE KITCHEN! :roll:
 

jimwalker

Senior Member
Location
TAMPA FLORIDA
Re: bath fan light

Allen i see that as a smart move.But what about this switch thing?
Did you read the one on bubble covers?
Hard keeping up to the changes.Even my wife doesn't change her rules this often!!!
 

ryan_618

Senior Member
Re: bath fan light

Originally posted by jimwalker:
Ok if that fart fan is to indeed remove methane gas ,please exsplain the ventless ones!!!!!
Jim: The ventless fans do not comply. Exhaust must be directly dicted to the exterior of the building.
 

websparky

Senior Member
Location
Cleveland, Ohio
Re: bath fan light

Hi Andrew,

Maybe you could help us out and let me know where I missed the requirements listed in these two codes where a bathroom is mentioned.
NFPA 820
Standard for Fire Protection in Wastewater Treatment and Collection Facilities
7-2.2
Ventilation systems serving hazardous areas classified under the provisions of Article 500 of NFPA 70, National Electrical Code, shall incorporate fans fabricated in accordance with Air Moving and Control Association (AMCA) Type A or Type B spark-resistant construction.
I would think that if methane were a concern, it certainly would have been noted when all of the bathrooms were engineered across this country.
 

roger

Moderator
Staff member
Location
Fl
Occupation
Retired Electrician
Re: bath fan light

Dadburnit Ryan, Jim was going to reply to himself again if you hadn't posted.

Ryan, are these fans actually marketed as "exhaust" or something else such as filtering / deodorizing units in the literature?

Roger
 

jimwalker

Senior Member
Location
TAMPA FLORIDA
Re: bath fan light

Ryan i havn't seen a ventless in years .Was only using it to prove a point about gas.How can our laundry room ,wet bar or kitchen be safe if that is what this fan is all about.I have seen skylights in bathrooms.With skylight i have no reason to turn that light switch on.At night that plug in 7 watter is enough.What if i turned the shower light on instead( fan won't run.
I had to apoligize to a recent customer,we were rewiring his K and T house while he remained living there(not fun)we ran out of time to get his bathroom up and running,His wife used candels to take a bath,LOL
If methane is that big of a problem we could not risk it getting vented by a fan that might never get turned on.
 

ryan_618

Senior Member
Re: bath fan light

Originally posted by jimwalker:
[QB] Ryan i havn't seen a ventless in years .Was only using it to prove a point about gas.How can our laundry room ,wet bar or kitchen be safe if that is what this fan is all about.
Jim: Put a mirror in your wet bar, kitchen and laundry room and see how long it takes to fog up. Let me know in a few years when it actually does. Also, the rooms you point out above must meet a minimum of 4% natural ventilation and 8$ natural light (based on square footage), bathrooms do not.
The various codes are obviosly concerned about the moisture in bathrooms, hence the requirements for "green" sheetrock and the prohibiting of a moisture/vapor barrier.

EDIT: Sorry Roger, I forgot to answer your question. Yes, they are merchandised as an exhaust fan. Broan and Nutone are common manufacturers of them.

[ January 04, 2004, 08:23 PM: Message edited by: ryan_618 ]
 

websparky

Senior Member
Location
Cleveland, Ohio
Re: bath fan light

Here is another interesting code!

NFPA 5000
51.3.2.12.4 Bath Ceiling Units. Bath ceiling units providing any combination of heat, light, or ventilation shall be provided with controls that allow separate operation of each function. In an assembly that is part of the building envelope, they shall be insulated to the outside in accordance with 51.3.2.2.
 

ryan_618

Senior Member
Re: bath fan light

Dave: I think it would appropriate to state that only California has shown any interest in adopting the NFPA 5000.

good reference though, very interesting.
 

bigjohn67

Senior Member
Re: bath fan light

I can back it up from "our area"
1. seperate switching is not required by our inspector.
2. If you follow just the electrical code you will pass. however, the GC will fail the Building inspection when trying to receive a certificate of occupancy.
3. Then it falls back on us because we are covered under and have a responsibility to produce a product that will pass all codes.
4. I for one do not want $10,000 or so of my final payment held up by a simple $.46 switch.
5. GC's hire you because of your wide range of knowledge for completing the project as a whole. If you do not, they will not use you again no matter how low your bid is.
The worst that will happen is that you end up with a switch and a blank plate... But spare the embarassment on your knowledge and your company and do what is best for the project to assure future contracts.
And you can take that to the bank!
 
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