used Panasonic about 10yrs + .. now changed to JOVEN, because the supplier / service centre nearby my house, and the old Panasonic had leakage, but parts expensive .. so migrated to JOVEN, after few years there's once the input heater sensor had problem, straight went bought the sensor at the service centre and changed it myself .. done!

the sensor just costed RM15 each .. I bought 2 sensors incase to use in future

both Panasonic & JOVEN came without pump feature because my house the water pressure is high ..