I have two 20-amp circuits, and I need separate following devices into two groups.
Can you please help out.

Dish Washer
Microwave (portable)
Garbage Disposal (1 HP)
Over hood Vantilation

Can I also hook up some lightings to one of these two circuits?


Thanks in advance.

Oop.. I just checked. Garbage disposal is 1/3HP.

Before we start giving you answers on rather you can use two circuit to serve a Dishwasher, Dispo, and hood. I say look at the Manufactures instructions first, and see if they require a dedicated circuit to their appliance?

The micro is a different subject, and shouldn't be a problem, if it's portable. Where do you plan to plug it in?

My microwave manual says, its max watt is 1000. I am thinking about plug into receptacle of one of two 20-amp circuit along with garbage disposal. Washington1, why micro is not a problem. It can draw 1000 watt, I think it is a lot!

Te disp and DW CANNOT be on with other kitchen receptacles. Put them both on one circuit.

The micro can be on one of the two required counter circuits.

The hood, or ANY lighting, CANNOT be on any of them. The hood can be on a lighting circuit.

Te disp and DW CANNOT be on with other kitchen receptacles. Put them both on one circuit.

The micro can be on one of the two required counter circuits.

The hood, or ANY lighting, CANNOT be on any of them. The hood can be on a lighting circuit.

It still depends on the manufactures instructions.

The norm for me is to install a dedicated circuit to each item listed, accept the portable micro. Reason for dedicating the hood: Just in case the current or next owner of the property decides they want to install a micro hood.


If the manufacture (or your local AHJ) does not mandate a dedicate circuit for your dishwasher/ and disposal, then you may be able to get away with putting them on the same circuit--seeing that the disposal isn't on for long periods. I believe what stan listed will work, yet it depends on the Dishwasher's draw, and the manufactures rules.



What is your diswasher drawing?

I have NEVER heard of a local amendment requiring a DW and disp on a dedicated circuit each. I don't doubt you if you say it is so, it's just this is the first I have ever heard of that.

In my experience it is very common to combine them on a shared 20A circuit.

The dedicated circuit to a hood is very generous of you. Unless I bid it to be dedicated, a regular hood is going on a lighting circuit.

The dedicated circuit to a hood is very generous of you.Thank you! At least someone appreciates me! :)