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I will run a #12 from a 20 amp breaker to a 20 amp cfi plug in a bathroom. I know I can use the same circuit for other fixtures in this same bathroom. Can I use #14 wire to run power from that box to the bathroom lights ?? or must all wire be #12.??
 

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In Canada.
A 20 amp circuit is NOT required in the bathroom but you can use it. You must use a 20 amp T slot receptacle on a 20 amp circuit.
Lighting can NOT be on a 20 amp circuit. It is restricted to 15 amp circuits.
Bathroom circuits are not dedicated in Canada. You can share it with other rooms as long as you don't exceed the 12 outlet per circuit rule.
A 20 amp circuit requires #12 wire on the entire circuit.
 

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Nope. Too much heat, and not a combined unit. Inspector will call you on it, especially if you don't have another heating source (such as forced air) in the room.

1 X 15A Circuit for your GFCI receptacle and Lights
1 X 15A GFCI circuit for the rest of your heating if the manufacturers instructions require a GFCI or EPD Breaker.Otherwise a regular 15A is good to go.

62-110 Branch circuits
(1) Branch circuit conductors used for the supply of energy to heating device sets shall
(a) be used solely for such heating device sets; and
(b) have an ampacity not less than that of the connected load supplied.
(2) For the purpose of this Rule, an approved unit that combines heating with ventilating or lighting equipment, or both, shall be considered to be a heating device set.
(3) Notwithstanding Subrule (1), where a heat lamp is not the sole source of heat, it shall be permitted to be used in a luminaire approved for the purpose or in a box-mount-type luminaire, where the luminaire is supplied from a general-use branch circuit

62-114 Overcurrent protection and grouping (see Appendix B)
(1) Every heating fixture, heating cable set, heating panel set, or parallel heating set having an input of more
than 30 A shall be supplied by a branch circuit that supplies no other equipment.
(2) In buildings for residential occupancy, two or more heating fixtures, heating cable sets, or heating panel
sets shall be permitted to be connected to a branch circuit used for space heating, provided that the branch
circuit overcurrent devices are rated or set at not more than 30 A.
 

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much thanks.
How does this sound: one 15 amp circuit for one plug, 4 LED lights, 150 watt heated towel rack, one 160 watt heated mirror, and 260 watts for heated flooring.??
You say "one plug", but that receptacle will likely be used for an 1800 watt hair dryer.
 

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Discussion Starter · #7 ·
there will be forced air in the bathroom. I will do a separate 15 amp for the floor heating and heated towel rack. The mirror has LED back lighting and a small heater to eliminate fogging (160 watt). I want the light switch for the ceiling pot-lights to also turn on the mirror. So I will put the gfi plug and the "lights" (including the mirror) on their own circuit... ???
 

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I think that plan would be acceptable. Just remember your lighting circuit can't be on a breaker greater than 15A. I don't foresee any direct code violations that an inspector would call you out on doing it that way (Provided this job is being inspected)
 

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I will run a #12 from a 20 amp breaker to a 20 amp cfi plug in a bathroom. I know I can use the same circuit for other fixtures in this same bathroom. Can I use #14 wire to run power from that box to the bathroom lights ?? or must all wire be #12.??
Why even consider using #14 instead of #12 ?
Is the difference in price that great ?

:vs_worry:
 

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Because we mostly use 15 amp circuits in Canada so there is no need for #12. It is harder to work with. It takes up more space so you need bigger boxes.
An mainly because I don't believe the copper industry hype that it will save me money on my electric bill.
 

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You think # 12/2W/G is hard to work with , try 500 THHN copper & 3-1/2" conduit .

Do you use 120 VAC as we do in the lower 48 , is is it all 120VAC in Canada , like the Brits ? How about in Qz ?

In our neck of the woods , we mostly run 12/2/W/G . Except , locally , the " ropers " use 14/2/W/G for switch legs . Not saying that is right , not saying that is wrong . Just saying that is the way it is .

God bless
Wyr

God bless
Wyr
 

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You think # 12/2W/G is hard to work with , try 500 THHN copper & 3-1/2" conduit .
Been there many times. Yes it sucks and kicks your ass.
Work with #12 and #14 all day and even you will prefer to work with #14. It is MUCH easier to fold into boxes, especially multi-gang boxes with dimmers.


In our neck of the woods , we mostly run 12/2/W/G . Except , locally , the " ropers " use 14/2/W/G for switch legs . Not saying that is right , not saying that is wrong . Just saying that is the way it is .
It is wrong, always has been. You refer to them as "ropers". To you is that all electricians that do mainly residential work? I highly doubt they ALL do this.
I get the impression that you do mainly commercial or industrial work and look down on resi guys. Am I right?

I have done a LOT of commercial work in my days, and I'll take #14 and plastic boxes ANY DAY over #12MC and metal boxes.
 

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Been there many times. Yes it sucks and kicks your ass.
Work with #12 and #14 all day and even you will prefer to work with #14. It is MUCH easier to fold into boxes, especially multi-gang boxes with dimmers.


It is wrong, always has been. You refer to them as "ropers". To you is that all electricians that do mainly residential work? I highly doubt they ALL do this.
I get the impression that you do mainly commercial or industrial work and look down on resi guys. Am I right?

I have done a LOT of commercial work in my days, and I'll take #14 and plastic boxes ANY DAY over #12MC and metal boxes.
I have done mostly commercial .

Resi is a different class of work . So is industrial . Someone has to do it . I am glad , most of the time , it has not had to be me . Just my preference .

Look down on roapers ? They do what they do , I do what I do .

But , around here , there is a residential journeyman license that takes less time / experience to obtain , than a journeyman license . I have no problem with that .

On another note . I mis-typed . I meant to say 240 VAC is what the Brits use & was asking it the Canadians used that voltage like the Brits ? And I ashed about the Aussies ?

Some one answered the Canadians used 120 / 240 VAC , as we do .

God bless
Wyr
 
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