do you think what the main problem?   

Not all can afford using tank water heater.

so what your advise can give?

can suggest which one suitable for storage?

I found out this don't know suitable or not. But price not cheap.

http://my.element14.com/timeguard/tfp10wl/...hite/dp/1642925

Thanks your advise. That means each time when go bathroom press it before take bath right?

seriously?
any known cases or simply say oni...

What a load of BS.

In Australia Every home (about 10 million) has a hot water storage heater (gas or electric powered) they are left on all the time 24/7 365 (because they are insulated and super efficient, 2-3 times lower operating cost then Malaysian system of instant water heater).

Out of those 10 million units, how many Exloped during last 10 yrs ZERO!

Safety valves never fail, they are designed to be failsafe, ie if it stops working it will release the pressure.
If heating function never fails to cut off. Again it is design to be failsafe.
It doesn't mater if you don't turn it off, they are designed to be left on continuously. Steam does not buildup casueing rise in pressure.
How do I know this? I am an Engineer and I once worked for a company that manufacturers water heater tanks.

What a load of BS.

In Australia Every home (about 10 million) has a hot water storage heater (gas or electric powered) they are left on all the time 24/7 365 (because they are insulated and super efficient, 2-3 times lower operating cost then Malaysian system of instant water heater).

Out of those 10 million units, how many Exloped during last 10 yrs ZERO!

Safety valves never fail, they are designed to be failsafe, ie if it stops working it will release the pressure.
If heating function never fails to cut off. Again it is design to be failsafe.
It doesn't mater if you don't turn it off, they are designed to be left on continuously. Steam does not buildup casueing rise in pressure.
How do I know this? I am an Engineer and I once worked for a company that manufacturers water heater tanks.

This is quite similar to air compressor safety valve built up method.

Air-compressor safety valve also not contact with water, and protected from outside dirt, yet there is a failed to open safety valve in real life usage.

Yes, it has a low chance to fail like 0.000000001%, but totally failsafe?

You wrongly assume the spring is inside the valve and in contact with the water, sand/rust etc, it is actually outside and protected from such contaminants.

they generally look like this http://content.answcdn.com/main/content/im...97800FG0010.gif

Just like car radiator cap, you don't read anywhere it jammed and cause hose burst. you read more of the cap leak

Can we assume whether Our Electrical System is protected against Earth Protection or not by only Pressing ELCB Test Switch?

Checking the health of the ELCB is simple and you can do it easily by pressing TEST Push Button Switch of ELCB. The test push-button will test whether the ELCB unit is working properly or not. Can we assume that If ELCB is Trip after Pressing TEST Switch of ELCB than your system is protected against earth protection? Then you are wrong.

The test facility provided on the home ELCB will only confirm the health of the ELCB unit, but that test does not confirm that the ELCB will trip when an electric shock hazard does occur. It is a really sad fact that all the while this misunderstanding has left many homes totally unprotected from the risk of electric shocks.

This brings us or alarming us to think over second basic requirement for earth protection. The second requirement for the proper operation of a home shock protection system is electrical grounding.
We can assume that the ELCB is the brain for the shock protection, and the grounding as the backbone. Therefore, without a functional grounding (Proper Earthing of Electrical System) there is totally no protection against electrical shocks in your house even if  You have installed ELCB and its TEST switch show proper result. Looking after the ELCB alone is not enough. The electrical Earthing system must also be in good working order for the shock protection system to work. In addition to routine inspections that should be done by the qualified electrician, this grounding should preferably be inspected regularly at shorter intervals by the homeowner and need to pour Water in Earthing Pit at Regular interval of Time to minimize Earth Resistance.

An earthing test needs to be done to check on the ground earth cable.

Ref : http://electricalnotes.wordpress.com/2011/...f-elcb-and-rcb/

+1

That's what happened to my case.

I had a 10yrs old plus panasonic instant water heater (with the digital screen type), for the past ten years quite frequent I used to test the ELCB by pressing the button, it did trip the circuit n seemed working like a champ.

Months ago, while showering, a loud 'pop' sound heard, i was shocked to see the unit 'exploded', white smoke came out from the part of the wire point. Imagine the toilet filled with white thick smoke. The plastic cover around that wire-in area went black.

The pana technician who came over to check told me it's the bad wiring caused the mini explosion, the wire was melted, i.e. overload for a prolong period, not sudden overload.

So, I bought a Alpha Smart 18i instant water heater to replace the pana.

This 18i came with this Auto ELCB checking feature, so everytime the heater switch is turned on the system ll go thru a few seconds checking routine, if the result is fine, the row of green led ll light up indicating the ELCB is functioning.

This 18i also came with something "Not Available" in the old Pana, known as "LED Line Fault Indicator". So if this led is Red meaning something wrong with the wiring connection to the unit.

After the technician carefully connected all three wires to the 18i and turned on the unit for testing, the unit auto check the ELCB for few seconds, all green led light up, meaning it's working fine. The water also heated nicely. But the "Line Fault indicator" led is Red color! The technician told me if the wires r connected wrongly the water wouldn't have heated. Sound logic also.

But thank god he's willing to re-connect all 3 wires again just to double check. Well, same thing happened. The line fault indicator still light up in RED. 

Then he stepped out the bathroom, opened up the Heater Switch on the wall right outside the bathroom, believe it or not, he discovered the Earth wire from the bathroom heater to the Switch was NOT connected to the switch at all! That's why the 18i line fault indicator showing RED.

Okie, why would the Earth wire not connected to the heater switch? The reason was the Earth wire from the wall is TOO short to reach the Earth connector on the switch. Bcoz not every Switch's connector placement r the same. The technician got me another Switch that has the Earth connector 'nearer' to the short earth wire, and after some careful adjustment only he managed to connect all three wires to the switch properly.

I m lucky I chose the 18i that came with an effective line fault detection, else I will never know the so called Earth Leakage Circuit Breaker ELCB is for 'show' only, the god damn Earth wire is not even ground at all !!



----------------------------------------------------------------------
I think this is a must-have safety feature on top of the better-than-nothing ELCB feature.