Residential laundry circuit

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nizak

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Just finished the trim out on a new build and happened to look at the washer/dryer set up in the laundry room.

Gas dryer has a nameplate of 11.2A and the washing machine 10.0 A. These are both higher end appliances.

Curious, I looked at the units I have in my home. Mine are not high end, basic run of the mill.

Gas dryer 9.5A, washing machine 10.0 A

Thinking about it, by code most all laundry circuits are overloaded with just the standard appliances like mine plugged in.

Anybody been running 2 circuits for gas dryer and washing machine in the laundry room?
 
I would guess that the dryer with 11.2 amp nameplate rating has a requirement in it's instructions for it's own circuit.

Can't two 10 amp appliances be on the same circuit?
 
marmathsen said:
We tend to run 10/3 and fuse it at 20A 240V to future proof if they change it out later for an electric dryer
Rob

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We do that for the dryer also & run a 120v circuit for the washer. This way there is not an issue either way.
 
marmathsen said:
We tend to run 10/3 and fuse it at 20A 240V to future proof if they change it out later for an electric dryer
Rob
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Then how do you supply the washer with the required 20 amp laundry circuit after you've converted it to a 30 amp dryer circuit?
 
infinity said:
Then how do you supply the washer with the required 20 amp laundry circuit after you've converted it to a 30 amp dryer circuit?
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If it's on a 20a 2-pole breaker to start with, then there's no 20a 120v laundry circuit possible with it at all.
 
infinity said:
Then how do you supply the washer with the required 20 amp laundry circuit after you've converted it to a 30 amp dryer circuit?
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Sorry, I guess I didn't clarify. We actually run 2 circuits. A 10/3 fused at 20A 120V for the dryer and a 12/2 fused at 20A 120V.

Additionally if it's a laundry ROOM (as opposed to just a closet) we run a 3rd circuit for "other" laundry appliances like an iron which is 12/2 20A 120V.

Rob

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marmathsen said:
Sorry, I guess I didn't clarify. We actually run 2 circuits. A 10/3 fused at 20A 120V for the dryer and a 12/2 fused at 20A 120V.

Additionally if it's a laundry ROOM (as opposed to just a closet) we run a 3rd circuit for "other" laundry appliances like an iron which is 12/2 20A 120V.

Rob
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That makes more sense. :)
 
marmathsen said:
Sorry, I guess I didn't clarify. We actually run 2 circuits. A 10/3 fused at 20A 120V for the dryer and a 12/2 fused at 20A 120V.

Additionally if it's a laundry ROOM (as opposed to just a closet) we run a 3rd circuit for "other" laundry appliances like an iron which is 12/2 20A 120V.

Rob

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That makes sense but, is it required? I remember seeing a laundry diagram that showed only one circuit to the laundry room... think it was talking about gfci...
 
Adamjamma said:
That makes sense but, is it required? I remember seeing a laundry diagram that showed only one circuit to the laundry room... think it was talking about gfci...
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The NEC only requires one 20A 120V circuit to serve the laundry area receptacles.

210.11(C)(2) Laundry Branch Circuits. In addition to the number of branch circuits required by other parts of this section, at least one additional 20-ampere branch circuit shall be pro- vided to supply the laundry receptacle outlet(s) required by 210.52(F). This circuit shall have no other outlets.
 
Which means that your iron, washer and dryer, unless a big dryer, all can use the one circuit? Because it shows the little s in parenthesis, it means one circuit but all outlets must be only in laundry..no feeding a pantry or dining room.
At least that is how I read it..like the bathroom circuits... I can feed more than one bathroom off the breaker but, only feed bathrooms. Not closets just because they are close.
 
Adamjamma said:
Which means that your iron, washer and dryer, unless a big dryer, all can use the one circuit? Because it shows the little s in parenthesis, it means one circuit but all outlets must be only in laundry..no feeding a pantry or dining room.
At least that is how I read it..like the bathroom circuits... I can feed more than one bathroom off the breaker but, only feed bathrooms. Not closets just because they are close.
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New house no appliances yet (or at least unknown what they will be), NEC only requires one 20 A laundry circuit.

If you have washer, gas dryer, and iron and run all at same time, I'd bet you are not that likely to ever trip a 20 amp breaker. Unless washer has a water heating function, it probably never draws over 10 amps. Iron - takes a few minutes to get to operating temp, but is never going to constantly draw current, unless you lay it against some sort of heat sink.
 
Washers here in uk never trip a thirteen amp fuse and they heat their own water.. same with dryers here.. but both are 240 volt compared to 110 volt... so, would Xperia t USA versions to be comparable on twenty amp circuit. But, could be very wrong. Just always remember my dads kenmore washer and dryer plugging into 110 plugs back I. Seventies..no special plug, unlike the big windo ac unit...
 
kwired said:
New house no appliances yet (or at least unknown what they will be), NEC only requires one 20 A laundry circuit. .....
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The NEC requires at least one circuit. If the appliance(s) draw more than a single 20a circuit can supply, you'll need to put in more circuits.

Some high-end houses which have two washers and two (and even three) dryers in the laundry room.
 
480sparky said:
The NEC requires at least one circuit. If the appliance(s) draw more than a single 20a circuit can supply, you'll need to put in more circuits.

Some high-end houses which have two washers and two (and even three) dryers in the laundry room.
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Correct, read/listen to what I mean not what I write/say.:)
 
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