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Post Subject:

Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

Reply from: chrisc
Date: 08 May 2008, 05:26
Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

The wiring is all over the place in this house. For example a bathroom fan
is on 14/2 wire going to a 15 amp breaker. And a bathroom outlet is 12/2
going to a 20 amp breaker. I want to put both on the same circuit and make
everything more neat and organized. Which breaker can they not go on if
combined? Can't remember how the rules go. Is one unsafe cause the wires can
get too hot. Thanks a lot.



Reply from: noname87@hotmail . com
Date: 08 May 2008, 05:40
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

Others will answer but I can get you started.

1) I believe the bathroom outlet is required to have a dedicated 20
amp circuit by current code. So don't touch it. Do not combine these
circuits.

2) A 20 amp breaker requires 12 awg. So never use 14 AWG in a 20 amp
circuit.

3) 12 awg is okay to use with a 15 amp breaker.

Reply from: Calab
Date: 08 May 2008, 06:17
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

> The wiring is all over the place in this house. For example a bathroom fan is
> on 14/2 wire going to a 15 amp breaker. And a bathroom outlet is 12/2 going
> to a 20 amp breaker. I want to put both on the same circuit and make
> everything more neat and organized. Which breaker can they not go on if
> combined? Can't remember how the rules go. Is one unsafe cause the wires can
> get too hot. Thanks a lot.

Well, you could pull the 12/2 out, replacing it with 14/2, and then use
a 15amp breaker, or you could pull out the 14/2, replacing it with
12/2, and use a 20amp breaker.

You CAN'T mix gauges and not break code.

Example... You have 12/2 on a 15 amp breaker. Later on someone wants to
install a wall heater. They pull an outlet out and find 12 gauge
wiring. They assume that it's good for 20 amps and install it.

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Reply from: Edwin Pawlowski
Date: 08 May 2008, 11:55
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?


>> The wiring is all over the place in this house. For example a bathroom
>> fan is
>> on 14/2 wire going to a 15 amp breaker. And a bathroom outlet is 12/2
>> going to a 20 amp breaker. I want to put both on the same circuit and
>> make everything more neat and organized. Which breaker can they not go on
>> if combined? Can't remember how the rules go. Is one unsafe cause the
>> wires can get too hot. Thanks a lot.

That is the correct way, so don't change it. If you hair dryer goes out, you
don't want the lights to go out with it and be left in the dark. Your "neat
and organized" may be a code violation so find out what good practice is
before proceeding. . .



Reply from: trader4@optonline . net
Date: 08 May 2008, 15:31
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

On May 8, 12:17 am, Calab <mys...@csd.ca> wrote:
> > The wiring is all over the place in this house. For example a bathroom f=
an is
> > on 14/2 wire going to a 15 amp breaker. And a bathroom outlet is 12/2 go=
ing
> > to a 20 amp breaker. I want to put both on the same circuit and make
> > everything more neat and organized. Which breaker can they not go on if
> > combined? Can't remember how the rules go. Is one unsafe cause the wires=
can
> > get too hot. Thanks a lot.
>
> Well, you could pull the 12/2 out, replacing it with 14/2, and then use
> a 15amp breaker, or you could pull out the 14/2, replacing it with
> 12/2, and use a 20amp breaker.
>
> You CAN'T mix gauges and not break code.
>
> Example... You have 12/2 on a 15 amp breaker. Later on someone wants to
> install a wall heater. They pull an outlet out and find 12 gauge
> wiring. They assume that it's good for 20 amps and install it.

There is no code violation in using a lower gauge wire. You can use
12 gauge on a 15amp circuit. If you were adding a major load, it
would be pretty stupid to not check the breaker size. Plus, for most
people, checking the breaker is easier than trying to determine the
wire gauge. Even if they did do what you suggested, it's not a
safety hazard. The breaker will trip without the wire being
overloaded.

If you use a wire less than required, then you have a safety problem.




>
> --
> Fight Usenet Spam!!! - * improve-usenet.org:80/
>
> Want a good newsgroup reader that will filter out GoogleGroups spam?
> Try MesNews - * w w w .mesnews . net /gb/
>
> If you want your posts to be seen, DON'T USE GOOGLE GROUPS!


Reply from: Red Green
Date: 08 May 2008, 06:18
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

"chrisc" <cchristanis@gmail . com > wrote in
news:482272c3$0$31743$4c368faf@roadrunner . com :

> The wiring is all over the place in this house. For example a bathroom
> fan is on 14/2 wire going to a 15 amp breaker. And a bathroom outlet
> is 12/2 going to a 20 amp breaker. I want to put both on the same
> circuit and make everything more neat and organized. Which breaker can
> they not go on if combined? Can't remember how the rules go. Is one
> unsafe cause the wires can get too hot. Thanks a lot.
>
>

Wiring is supposed to be all over the place...better know as distributed
based on probable use. The bathroom is on 20A because of the electric
hair dryer and curling iron plugged in is sucking a lot of juice. This is
not an unlikely event.

1875w hair dryer 15.6A
Curling iron maybe another 1A

Put the toilet fan and light on it and a light strip and...
Toilet fan & light another 1A
4 light BR vanity strip 60w each another 2A

Pushing the 20A now. Not so neat.

Not a freak thing to have all this on at once.





Reply from: gfretwell@aol . com
Date: 08 May 2008, 06:42
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

On Wed, 07 May 2008 23:18:04 -0500, Red Green <postmaster@127.0.0.1>
wrote:

>1875w hair dryer 15.6A

The same guy who puts those "6HP" stickers on 115v Harbor Freight air
compressors puts the 1875w sticker on hair dryers. They are about
12-13a.

* esteroriverheights . com /electrical/1875w_hair_dryer.jpg

It is still code that a bathroom be served by a 20a circuit with no
other outlets. One 20 can serve more than one bathroom if it only goes
to the receptacles or a 20 can feed all of the loads in one bathroom
(fan and light) but can't serve anything else.

Reply from: chrisc
Date: 08 May 2008, 12:23
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

What if I dont have any hair?


<gfretwell@aol . com > wrote in message
news:5t0524tns4rkan2ub4jd1bldo70v5cc8rl@4ax . com ...
> On Wed, 07 May 2008 23:18:04 -0500, Red Green <postmaster@127.0.0.1>
> wrote:
>
>>1875w hair dryer 15.6A
>
> The same guy who puts those "6HP" stickers on 115v Harbor Freight air
> compressors puts the 1875w sticker on hair dryers. They are about
> 12-13a.
>
> * esteroriverheights . com /electrical/1875w_hair_dryer.jpg
>
> It is still code that a bathroom be served by a 20a circuit with no
> other outlets. One 20 can serve more than one bathroom if it only goes
> to the receptacles or a 20 can feed all of the loads in one bathroom
> (fan and light) but can't serve anything else.



Reply from: Red Green
Date: 09 May 2008, 02:45
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

"chrisc" <cchristanis@gmail . com > wrote in news:4822d4a2$0$7035
$4c368faf@roadrunner . com :

> What if I dont have any hair?
>
>
> <gfretwell@aol . com > wrote in message
> news:5t0524tns4rkan2ub4jd1bldo70v5cc8rl@4ax . com ...
>> On Wed, 07 May 2008 23:18:04 -0500, Red Green <postmaster@127.0.0.1>
>> wrote:
>>
>>>1875w hair dryer 15.6A
>>
>> The same guy who puts those "6HP" stickers on 115v Harbor Freight air
>> compressors puts the 1875w sticker on hair dryers. They are about
>> 12-13a.
>>
>> * esteroriverheights . com /electrical/1875w_hair_dryer.jpg
>>
>> It is still code that a bathroom be served by a 20a circuit with no
>> other outlets. One 20 can serve more than one bathroom if it only goes
>> to the receptacles or a 20 can feed all of the loads in one bathroom
>> (fan and light) but can't serve anything else.
>
>
>

Anywhere?!

Reply from: Edwin Pawlowski
Date: 09 May 2008, 04:24
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?


> "chrisc" <cchristanis@gmail . com > wrote in news:4822d4a2$0$7035
> $4c368faf@roadrunner . com :
>
>> What if I dont have any hair?

Don't need hair to use a hair dryer. That blower is like the hand dryers in
public restrooms only you can do your entire body.



Reply from: Red Green
Date: 09 May 2008, 05:00
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

"Edwin Pawlowski" <esp@snet . net > wrote in
news:CBOUj.660$8i5.18@flpi144.ffdc.sbc . com :

>
>> "chrisc" <cchristanis@gmail . com > wrote in news:4822d4a2$0$7035
>> $4c368faf@roadrunner . com :
>>
>>> What if I dont have any hair?
>
> Don't need hair to use a hair dryer. That blower is like the hand
> dryers in public restrooms only you can do your entire body.
>
>
>

Think shrinkwrap Edwin, think shrinkwrap.
:-)

Reply from: Harry K
Date: 08 May 2008, 15:30
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

On May 7, 9:42 pm, gfretw...@aol . com wrote:
> On Wed, 07 May 2008 23:18:04 -0500, Red Green <postmas...@127.0.0.1>
> wrote:
>
> >1875w hair dryer 15.6A
>
> The same guy who puts those "6HP" stickers on 115v Harbor Freight air
> compressors puts the 1875w sticker on hair dryers. They are about
> 12-13a.
>
> * esteroriverheights . com /electrical/1875w hair dryer.jpg
>
> It is still code that a bathroom be served by a 20a circuit with no
> other outlets. One 20 can serve more than one bathroom if it only goes
> to the receptacles or a 20 can feed all of the loads in one bathroom
> (fan and light) but can't serve anything else.

Doesn't code also require a bathroom outlet to be on a GFCI? May be
grandfathered but any change of wiring would require it be done, or am
I mistaken on that?

Harry K

Reply from: David Nebenzahl
Date: 08 May 2008, 20:04
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

On 5/8/2008 6:30 AM Harry K spake thus:

> On May 7, 9:42 pm, gfretw...@aol . com wrote:
>
>> On Wed, 07 May 2008 23:18:04 -0500, Red Green <postmas...@127.0.0.1>
>> wrote:
>>
>> >1875w hair dryer 15.6A
>>
>> The same guy who puts those "6HP" stickers on 115v Harbor Freight air
>> compressors puts the 1875w sticker on hair dryers. They are about
>> 12-13a.
>>
>> * esteroriverheights . com /electrical/1875w hair dryer.jpg
>>
>> It is still code that a bathroom be served by a 20a circuit with no
>> other outlets. One 20 can serve more than one bathroom if it only goes
>> to the receptacles or a 20 can feed all of the loads in one bathroom
>> (fan and light) but can't serve anything else.
>
> Doesn't code also require a bathroom outlet to be on a GFCI? May be
> grandfathered but any change of wiring would require it be done, or am
> I mistaken on that?

Probably required, but even if not, one would be stupid not to spend the
extra 25 cents (metaphorically speaking) for a GFCI outlet and extra safety.


--
The best argument against democracy is a five-minute
conversation with the average voter.

- Attributed to Winston Churchill

Reply from: Red Green
Date: 09 May 2008, 02:49
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?

gfretwell@aol . com wrote in news:5t0524tns4rkan2ub4jd1bldo70v5cc8rl@4ax . com :

> On Wed, 07 May 2008 23:18:04 -0500, Red Green <postmaster@127.0.0.1>
> wrote:
>
>>1875w hair dryer 15.6A
>
> The same guy who puts those "6HP" stickers on 115v Harbor Freight air
> compressors puts the 1875w sticker on hair dryers.

lol!

> They are about
> 12-13a.
>
> * esteroriverheights . com /electrical/1875w_hair_dryer.jpg
>
> It is still code that a bathroom be served by a 20a circuit with no
> other outlets. One 20 can serve more than one bathroom if it only goes
> to the receptacles or a 20 can feed all of the loads in one bathroom
> (fan and light) but can't serve anything else.


Reply from: RBM
Date: 08 May 2008, 13:08
Re: Ok to mix 12/2 and 14/2 wire to a 20 amp breaker or 15 amp breaker?


"Red Green" <postmaster@127.0.0.1> wrote in message
news:Xns9A9830E95500RedGreen@216.168.3.70...
> "chrisc" <cchristanis@gmail . com > wrote in
> news:482272c3$0$31743$4c368faf@roadrunner . com :
>
>> The wiring is all over the place in this house. For example a bathroom
>> fan is on 14/2 wire going to a 15 amp breaker. And a bathroom outlet
>> is 12/2 going to a 20 amp breaker. I want to put both on the same
>> circuit and make everything more neat and organized. Which breaker can
>> they not go on if combined? Can't remember how the rules go. Is one
>> unsafe cause the wires can get too hot. Thanks a lot.
>>
>>
>
> Wiring is supposed to be all over the place...better know as distributed
> based on probable use. The bathroom is on 20A because of the electric
> hair dryer and curling iron plugged in is sucking a lot of juice. This is
> not an unlikely event.
>
> 1875w hair dryer 15.6A
> Curling iron maybe another 1A
>
> Put the toilet fan and light on it and a light strip and...
> Toilet fan & light another 1A
> 4 light BR vanity strip 60w each another 2A
>
> Pushing the 20A now. Not so neat.
>
> Not a freak thing to have all this on at once.


The wiring sounds perfectly normal to me. If the house is fairly new, the
code allowed for the lights and fan to be on any general lighting circuit
and the required 20 amp GFCI protected outlet, to be on the same 20 amp
circuit as the outlets in the other bathrooms
>
>
>
>




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Thread:
  Calab
    chrisc
     Red Green
      Edwin Pawlowski
       Red Green
    Harry K
     David Nebenzahl
    Red Green
   RBM
     Chip C
      terry
    Harry K