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jrp55262 t1_j0c1cwb wrote

Reply to comment by ryan__fm in 5 second toaster and kettle by F1NNTORIO

What you describe is basically an electric tankless water heater. Here are some specs from one manufacturer. The beefiest one they've got requires a 150A electrical connection and it still only raises the input water temperature by 98F; assuming that the incoming cold water is about 55F that gets you up to 153F... which might steep a cup of tea but is still well shy of boiling.

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lewisc1985 t1_j0c2g5i wrote

That’s 98 degree delta at 2.5gpm, mind you. If you lower how many gallons are going through it, it can get much warmer. I have a 18kw unit that can do 70-80 degree delta with three 20 amp breakers at a much lower gpm.

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