I have some boilers of other manufacturers, some three times as expensive, looked at and compared to the Eldom, weighed pros and cons and then I decided to go for this. He was easy to install because you hang him not only with the supplied brackets to the Wang, but just can also among the sink. He has, with 19 Minutes, very short heating time, which was even undercut by several minutes. I was able to use almost all attachments (reducers, hoses, fittings) of the old flow heater again. Can only recommend this device.