A circulation pump for hot water. Yes or No?

So 40 degrees I believe very few have, 45 to 50 degrees more likely. We have 50 degrees also because of fear of Legionella, but it's probably all panic when you look at the cases in Germany it is more likely to be murdered by your cat than to get sick from Legionella...

So I counted earlier. In the shower upstairs, I wait 8 seconds for the warm water from the basement. That is more than bearable for me. At the other taps, there are practically never situations where I immediately need warm water. Circulation would be unnecessary for me.

So I think very few people have 40 degrees, 45 to 50 degrees is more common. We have 50 degrees also because of fear of Legionella, but it's probably all panic when you look at the cases in Germany, it is more likely to be murdered by your cat than to get sick from Legionella...

Sorry, I set it to exactly 42.7892 degrees. Have you ever bathed in 50-degree warm water? That's hot and wastes unnecessary energy. Most of the electricity is consumed by heating water, and by reducing it, I have definitely saved several kW.

So I counted earlier. In the upstairs shower, I wait 8 seconds for warm water from the basement. That is more than acceptable for me.
At the other taps, there are almost never situations in which I need warm water immediately.
Circulation would be unnecessary for me.

That sounds realistic with reasonable planning. We have no basement, so one less floor and thus probably an even shorter pipe length. In the upstairs bathroom it takes 5-6 seconds for warm water to arrive (I have now measured again). Kitchen and guest bathroom have shorter distances, so it happens faster there.

How people arrive at values of 20 seconds in a reasonably normal single-family house... Unbelievable. I would have been talked into installing a circulation system as well. With several floors or living areas well beyond 200 sqm, good planning of course eventually is no longer enough, then a circulation system is necessary.

Wait 20 sec. too long? Are you all [Tassen im .....]? Seriously, it’s no effort to turn it on, wait a moment, and then go under.

...especially since the water from the tap is not "cold" either, but in the worst case arrives at room temperature. Of course, I can't speak for others, but I also don't wash my hands with hot water. And that's pretty much the only use case where I wouldn't want to wait.

You can generally consider it a comfort feature, but usually you don't actually need the circulation.