Electronics > Beginners
Standard electric kettle as a DC dummy load ?
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Doctorandus_P:
Some length of lacquered ("enameled") copper wire in a bucket can serve as a temporary quite nicely.
MikesElectricStuff did a youtube about that some time ago:
Seekonk:
As far as water heater elements, I use 2,000W 120V that are about 7.5 ohms (regardless of what they are stamped) for heating water at my off grid home.  There are "DC" elements for solar use that I believe are at least 300W at 12V, could even be 600W. These are more expensive.  I bought two 2,000W elements for $15 shipped.
tkamiya:
If I needed a quick and dirty load for 100 amps continuous, I'd use a pair of heavy duty jumper cables, a bucket of water, and some resistive material.  I might try hardware type steel wire or something.  I probably will test the setup OUTDOOR and have a quick way to disconnect.  That's enough power to cause some serious issues.

Old Printer:
Murphy's Law states you will burn up the coffee pot, and after paying to replace it you will be back where you started, minus xx.xx dollars (last coffee pot I bought was $60) and still without the components for a proper load. Take some of the coffee pot money and buy some components to make a safe and durable load. You will probably need it again someday.
GigaJoe:
when i was a kid , I boil resistors in the water , metal can ... :) Now i get a bit older and build a primitive electronic load .... trouble with the load unfort. it I=const ,   sometimes need R=const. then measure the noise for example   
so I bought like this with diff nomination:  https://www.aliexpress.com/item/-/32876339506.html
with small heatsink, and in the water it can handle up to 200-300W per a single resistor

heatsink like this https://www.aliexpress.com/item/-/32827258255.html  was on ebay much cheaper ...

hope it helps ...
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