It works well, but I didn't realise it needs monitoring to get the input and output of the water to balance. I bought extra piping to reach to my water supply and have pipes stretching across the kitchen which is a bit of a trip hazard. I am a bit nervous of it as I haven't used it many times. There is no indicater to tell you if the boiler is running dry. I use it for distilling water and have a wood burning stove so it doesn't need electric other than for the pump. My last distiller was all electric and expensive to run, although not so labour intensive.