ᐅ Circulation pump – 10 seconds until hot water arrives

Created on: 30 Jan 2018 07:29
M
Malz1902
Hello,

we have a circulation pump, but it takes 5-10 seconds for hot water to arrive. Is that normal?
lastdrop30 Jan 2018 14:59
Malz1902 schrieb:
Yes, but time-controlled, 3 times a day for 30 minutes each.

Yes, 300 liters storage

Okay, once every 8 hours. Then it’s clear that after 7 hours hot water won’t be available immediately, since it has cooled down.
M
Malz1902
30 Jan 2018 15:19
Even though it runs 24 hours a day, warm water does not come out immediately but only after 5-10 seconds.

I have tried both with and without a timer.
B
Bieber0815
30 Jan 2018 17:07
Is it the same at all tap points throughout the house?
B
bernie
30 Jan 2018 17:17
As the word circulation already suggests, it is a cycle. From this cycle, the pipe leading to the faucet branches off. Depending on the length of the pipe to the faucet, the effect you described is stronger or weaker.

It is also not automatically the case that all water outlets are connected to the circulation. You first need to check this. For example, in our house, the guest bathroom is not supplied by the circulation pump.
M
Malz1902
30 Jan 2018 20:00
As mentioned before, I received the following response from the plumber:
A circulation pipe must be connected at some point. This cannot be done directly at every tap point. Consequently, a small section of pipe will remain without circulation water.

I think that makes sense.

The circulation pipe goes to all tap points (3x 1st floor, 3x ground floor, and 1x basement).

That also matches your statement.