Safely Powering a 1800W Ninja Oven: 15A vs 20A Circuit in Your RV

[Brad Buchanan]

While I agree that a 20 amp circuit would be the best option, the info you present is incorrect. Neither the NEC or the manufacturer require it. A cooking appliance is not a continuous load, and a general use receptacle is not dedicated to any particular load.
AS mentioned earlier, if the appliance required a 20 amp circuit it would come fitted with a NEMA 6-20P.

Ever cooked a pizza?

 

[Brad Buchanan]

As a retired electrician I get a perverse pleasure reading all the false information in a thread like this. Especially the idea of wrapping a 12 gauge wire around a screw on an outlet. That is almost impossible to tighten correctly since you must hold the outlet in one hand and tighten it with the other hand. It is really difficult to get the proper tension on the screw without running the screwdriver into your hand. Very dangerous.

I am almost 66 and I do it all the time. Never poked myself and have probably installed a few hundred of them.

 

[SMR]

We decided not to get the 1800w Ninja oven, too big for the space.
We ended up with a Ninja Woodfire Grill OG701 and it is awesome.
So far everything has been delicious and the pizza was really good and cooked to perfection. It even does a whole chicken and crispy wings.
We have been at my MILs for the past 2 months and she ordered one. Lol

 

[bigbAZ]

Ever cooked a pizza?

Not personally, why do you ask?

 

[Lou Schneider]

While I agree that a 20 amp circuit would be the best option, the info you present is incorrect. Neither the NEC or the manufacturer require it. A cooking appliance is not a continuous load, and a general use receptacle is not dedicated to any particular load.
AS mentioned earlier, if the appliance required a 20 amp circuit it would come fitted with a NEMA 6-20P.

NEC defines "continuous load" as one lasting more than 20 minutes. Personally, given the minimum cost boxless outlets in a typical RV I'd be extremely leery about loading one to anywhere near it's maximum continuous rating.

 

[Brad Buchanan]

Not personally, why do you ask?

it was just an example of a circuit being loaded for and extended period of time.

 

[bigbAZ]

it was just an example of a circuit being loaded for and extended period of time.

The oven has a thermostat, so the load is not continuous by NEC definition..

 

[bigbAZ]

NEC defines "continuous load" as one lasting more than 20 minutes. Personally, given the minimum cost boxless outlets in a typical RV I'd be extremely leery about loading one to anywhere near it's maximum continuous rating.

Better look at article 100 again, a continuous load is defined as a load that is expected to continue for 3 hours or more. In those cases the circuit needs to be sized at 125%.

 

[RayIN]

Power=Voltatge X Current. (W=E-I)

Therefore, Power/Voltage=Current (W/E=I)

1800 Watts/120 Volts = 15 amps.

NEC requires that breakers only be loaded ,for continuous draw, to 80% of their capacity. For a 15 amp breaker that means they should only be presented with a maximum continuous load of 12 amps - therefore any 1800 watt load is WRONG on a 15 amp breaker is wrong.

With a 20 amp breaker, the max continuous load, per NEC guidelines, would be 16 amps. Therefore, OP's present oven AND the new oven require a 20 amp breaker to fall within NEC rules.

Follow @OldWEB - install a proper 20 dedicated breaker. And do not share that breaker with any other device or you will push it over the NEC limit.

I agree.

 

[John From Detroit]

As a retired electrician I get a perverse pleasure reading all the false information in a thread like this. Especially the idea of wrapping a 12 gauge wire around a screw on an outlet. That is almost impossible to tighten correctly since you must hold the outlet in one hand and tighten it with the other hand. It is really difficult to get the proper tension on the screw without running the screwdriver into your hand. Very dangerous.

I have often held the outlet in my left and the screwdriver in my right and NEVER had that problem. So tell me. How do YOU handle 12 ga wires on 20 amp outlets?
OR 30 amp connectors
or 50s

 

[whiteva]

Actually the proper driver bit types for electrical terminals are Robertson (Square)

Most diy's are not aware if this tidbit.

Yea,yea I know "my daddy worked in electrical for 200 years with the same flat tip screwdriver" (You can also tell by the number of holes in his left hand. Looking at my left hand I can remember each "DAMM IT" scar. remember to wipe up the blood from the front of the outlet.)

 

[John From Detroit]

Actually the proper driver bit types for electrical terminals are Robertson (Square)
View attachment 2457520
Most diy's are not aware if this tidbit.

Yea,yea I know "my daddy worked in electrical for 200 years with the same flat tip screwdriver" (You can also tell by the number of holes in his left hand. Looking at my left hand I can remember each "DAMM IT" scar. remember to wipe up the blood from the front of the outlet.)

I found a #2 Square also works well but I had both in stock.
As I said I've tightened many. Figured it out long ago.

 

[Goat-REDW]

As a retired electrician I get a perverse pleasure reading all the false information in a thread like this. Especially the idea of wrapping a 12 gauge wire around a screw on an outlet. That is almost impossible to tighten correctly since you must hold the outlet in one hand and tighten it with the other hand. It is really difficult to get the proper tension on the screw without running the screwdriver into your hand. Very dangerous.

Sounds like a house mouse that always backstabbed receptacles and switches. As a representative example, the recommended torque on everyday Eaton toggle switches and receptacles is 14 IN/LBs. Not exactly wrist breaking effort there. Combination Tip Drive or ECX is the thing to use on electrical now on the end of your torque screwdriver.

 

[Gary RV_Wizard]

Actually the proper driver bit types for electrical terminals are Robertson (Square)
View attachment 2457520
Most diy's are not aware if this tidbit.

Yea,yea I know "my daddy worked in electrical for 200 years with the same flat tip screwdriver" (You can also tell by the number of holes in his left hand. Looking at my left hand I can remember each "DAMM IT" scar. remember to wipe up the blood from the front of the outlet.)

That's an ECX bit in the photo, a specialty combo designed for heads that have the standard Robertson square PLUS a cross slot. The standard Roberson tip (and slot) is a tapered square alone. No cross bar.

 

[Wasillaguy]

I think we have enough bit shapes.
Soon you'll be able to order your own design driver bits and screws. You know, shaped like Texas, or Sonic the Hedgehog.

 

[whiteva]

Gary, you are correct, I grabbed the wrong photo.

 

[Goat-REDW]

I think we have enough bit shapes.
Soon you'll be able to order your own design driver bits and screws. You know, shaped like Texas, or Sonic the Hedgehog.

The Texas bit would probably work well, but I think the Sonic bit would cam out!

 

[Edd505]

We decided not to get the 1800w Ninja oven, too big for the space.
We ended up with a Ninja Woodfire Grill OG701 and it is awesome.
So far everything has been delicious and the pizza was really good and cooked to perfection. It even does a whole chicken and crispy wings.
We have been at my MILs for the past 2 months and she ordered one. Lol

Wife absolutely loves ours and it does way more than grill