Hi i'm looking at storage heater too

The price of Joven and hydro1 actually not much difference, hydro1 claimed to be more energy saving (1.5kw) but I'm not sure. i've read the earlier discussion but i think there is no conclusion yet.

Has anyone used Hydro1 storage heater before? Is storage heater really worth investment? Installing 2 storage heater costs about 5k (include hacking, copper piping...etc). I prefer storage because less risk of electrocution (heater can be turned off during shower once water is heated)

Also, is it better to install only 1 storage heater and shared by several bathroom? or install 2 is better? The contractor told me copper piping is expensive too so suggest install 2 separate heaters

Any sifu can help?

Thanks