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I... Genuinely only realizing this now
(lemmy.world)
For real. Everytime I get in the shower I end up having to point the showerhead away and cower from the cold water and I could have just turned it on first?
Well, there's those suicide showerheads containing the heating element...
No thanks, I'll use a toaster the old fashioned way.
This is true, but a lot of tankless sells advertise a feature that some have that recirculate the hot water so it's available without the wait.
So some people assume it's a feature all tankless have.
In Asia these tankless heaters are in the shower room itself, when they are not turned on there's no water in the pipe (in the part after the heating element).