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[deleted] t1_iy8swox wrote

[deleted]

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roobinsteen t1_iy8y13a wrote

> https://homeefficiencyguide.com/should-dishwasher-be-on-its-own-circuit/

There is a LOT of nonsense in that article. I do not think it was written by anyone who knows about typical residential wiring or the NEC. It is absolutely not correct that a dishwasher must be on it's own circuit. It is common and completely code acceptable for a dishwasher to share a 20A circuit with a garbage disposal. The only thing to abide by in terms of code is that the circuit serving the dishwasher must not be on one of the countertop circuits (also known as Small Appliance Branch Circuits/SABCs). The relevant portion of the NEC code is 210.52.

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TonyFugginMontana OP t1_iy8zhh3 wrote

This is closer to my understanding. Thanks. For the record, my dishwasher/dispoal circuit is separate from the countertop circuit; both circuits are labeled in the box ("dishwasher" and "small appliance").

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TonyFugginMontana OP t1_iy8wokt wrote

Thanks for responding. Yeah, I've heard that both need to be on separate 15A lines, but there seems to be a lot of conflicting information on this, tbh. Some say it's fine to have disposal and dishwasher on the same circuit if it's 20A, which mine is. No one really cites to the code itself, though, so I may have to dig deeper into this for an answer.

They were definitely lazy and cheap with everything in this house, but I mean, I kinda am too... Putting in a new circuit would probably be beyond my DIY limits so I'd rather avoid it.

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roobinsteen t1_iy8zt41 wrote

Whoever says they must be on separate circuits is wrong (see my answer above). Here's all that's required: Dishwasher cannot share circuit with any countertop circuits (aka SABCs), and must be a 20A if sharing with a disposal (this point is not said explicitly, but is implicit via general guidelines about sizing circuits for the amperage required by the appliances using them). Relevant NEC article is 210.52

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Wildcatb t1_iy9fu55 wrote

Dishwasher and disposal commonly share a circuit in new construction.

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