As another user, it is installed with gas boiler without ball (instant) It only takes me a minute to have hot water which triggers a small reel of noise but no more hassle than it is with that noise I know when the weather is good The factory settings are reliable and you do not have to do tests with a thermometer (well I did not go there) the taps are easy to handle while being smooth clutter is really mini which suits me well because of the smallness of my shower Still, I was forced to hand the conical Baques I had before on my previous Grohé instead of round flat provided that are a little thinner, and that left me more day something important that I knew but who is also mentioned in the doc: do not hesitate to reopen the water 2 minutes before replacing the new mixer to drive at once by pressure, déventuels calcium deposits that would be "left sucked" into the pipe once the water off after dismantling the old mixer ;
