>>16962965
I'm pretty sure a thermos + a Lipo battery wired to a resistor would be efficient enough to keep your coffee hot for days anon

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>>16962965

Hey, that is a nice samovar there ... :D

I drink green tea, and that gets bitter if you keep it warm tonlong anyway.
So i pass on this one, cool idea tho

>>16962976
But an RTG can keep it warm for decades.

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I'd pay top dollar for an RTG gf that keeps my bed warm at night and never leaves me.
>tfw no RTG gf

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>>16963005

>RTG-powered robot waifu
>heat exchanger surface temp: constant 38 °C

Now call the police on me ... :p

>>16962996
What's the point ? You wouldn't drink something that has been left in a corner for more than a few days would you?

>>16962965
Anon, that would cost over $1 million dollars and there is no way in fuck you'd get it approved

>>16963059
OP here, i'm a sipper