• grue@lemmy.world
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    4 days ago

    How long can you run them before they run out of juice, though? I’m not sure I’d want to have “range” (pun intended) anxiety making Thanksgiving dinner.

    • Ludicrous0251@piefed.zip
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      4 days ago

      https://copperhome.com/products/charlie

      This one, as an example, has a 5 kWh battery. Having seen it in action it’ll run itself for several hours unplugged. Pretty much indefinitely if charging.

      Remember, while induction ranges typically have high power ratings (10+ kW), they aren’t actually running the whole time. They use a decent amount of power for the initial heat up, or if youre running all of the burners on high trying to boil several large pots of water, but realistically that’s not how you use a range.

      Once the oven is up to temperature, it just kinda oscillates on and off, using comparatively little energy. Induction burners rarely run on full power because if you’ve ever cooked with induction you know you’ll burn…everything… on high - they can really dump heat into a pan.

      Actively cooking a big dinner with multiple burners, you may average about 2 kW. With 1 kW coming in from the wall, that gives you about 5 hours of sustained peak cook time.

      • azertyfun@sh.itjust.works
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        3 days ago

        A 5 kW peak stovetop is already more power than anyone can reasonably use with the amount of space available on a standard stove. Literally the only useful thing you can do at full power is bring water to a boil, because no actual cooking can happen at full power unless your diet is carbonized food. I have a 3.5 kW stovetop and it’s perfectly adequate.

        After the first 15-20 minutes of cooking (bringing water to a boil while preparing some onions/garlic/sauce/seasonings) it gets very hard to keep using 1 kW. By that point you’ll be leaving things on medium heat at most. I can’t think of a single home-cooked meal that would require continuously drawing a full 2 kW from the stove for multiple hours, that’s a truly crazy amount of energy. Even an oven at full blast won’t use anywhere near 2 kW once it has reached 250 °C.

      • anomnom@sh.itjust.works
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        3 days ago

        We have a glass top 240v resistive heating range and it won’t run all 5 burners on high. The rear is a dual with burner (like for a rectangle skillet). I’m not sure you can run that and the full size burner on high at the same time. One of them won’t heat up.

        However the number of times of run into this in 10 years is maybe 3. It’s not really a problem and pretty easy to stagger things and simmer or keep parts of a meal warm in an oven or toaster oven.

        • Ludicrous0251@piefed.zip
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          3 days ago

          I have a 6-burner induction range and the burners are paired (front+back), if you set any front-back pair to high they only do like a 75% (which is still more than enough to burn your food). If you really need 3 things cooking on high you just do them across the 3 zones and you’re fine. I’ve basically never needed to use this knowledge.

    • ronl2k@lemmy.world
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      4 days ago

      How long can you run them before they run out of juice, though?

      They run by either an electrical outlet or by battery. Another article stated the battery backup for its induction oven was one hour. Hardly worth being a feature.

      • 5C5C5C@programming.dev
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        4 days ago

        One hour of being able to cook in the midst of a 12+ hour blackout can make a world of difference to hungry people.

        • ronl2k@lemmy.world
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          2 days ago

          One hour of being able to cook in the midst of a 12+ hour blackout can make a world of difference to hungry people.

          There are plenty of meals that don’t require electricity:

          • Salads & fruits
          • Tuna sandwiches
          • Deli sandwiches
          • Shrimp dishes
          • Peanut butter & jelly
          • Cakes, pies, pastries, breads
          • Pickled/smoked meats
          • Potato chips, popcorn, nuts

          Meals can also be cooked on a portable grill.

          • AnotherUsername@lemmy.ml
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            2 days ago

            Congratulations! Now run the piping for gas to every apartment in a major city. Do it for the same budget as battery induction cooktops. Then we’ll talk.

          • Tinidril@midwest.social
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            4 days ago

            I wouldn’t assume the pumps moving that gas would keep working for an extended outage. If an outage lasts that long, it’s usually over a big area.

            • lemming741@lemmy.world
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              4 days ago

              In the last 15 years, my electricity has been out for 10+ DAYS three different times. Gas doesn’t stop.

              In fact, 2 out of 3 homes in the neighborhood have Kohler style natural gas whole house generators.

              There’s plenty of reasons to hate gas, but that ain’t one.

              • dustycups@aussie.zone
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                3 days ago

                The reason you were down voted was in the first paragraph of the article - including breakdowns that can last for months at a time

              • Nollij@sopuli.xyz
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                4 days ago

                They should’ve run the electricity wires next to the gas wires, i.e. buried.

                • AnotherUsername@lemmy.ml
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                  2 days ago

                  Not really. The problem isn’t that gas is somehow unreliable, it’s actually that gas doesn’t scale at all. It’s a massive expensive infrastructure change and it’s not flexible - you need gas. Electrical stoves can be powered by solar, wind, propane, etc; gas only works on gas.