main problem is must have a water tap/valve before the instant heater. I still can pump the hot water outlet into the same old hot water piping of the storage heater... to get it working, i figured out i must install it below the ceiling. me don't mind about that but the next buyer sure kpkb 1....
i like instant water heater (no water storage tank) more... bcoz...
- not need to wait 5-10min for water heating
- more lasting, proven
- can diy anytime, already diy 2-3 sets before...
- no water dripping problems, and damage the false ceiling
- safer, no pressure build up
- no need to worry about forgotten to off the switch
- no need to flush out cold water in the piping
- more energy saving, colder water passing through the heating element, and no extra 15-30 litres of water get heated and stored.
- easier to adjust temperature, and do not get cooked by accidentally hit the lever of valve/tap....
anyway, already got an ariston installed...