My heater just leak off early 3am which i heard some water dropping sound at my common toilet.

Is a inner leak and suspect is the inner tank crack.

Luckly today is holiday and might go and search for replace a water heater storage tank.

Any recommend brand? which can last for 10 years? My last for 8 years and first time give problem.

I had shortlist my search

1) Champs C30V ( heard is same as 707?)

2) Ariston Tiplus P30 ( used back same brand as don't need to re-fitting the pipe)

3) 707 Multi-15 ( expensive, above $400, fitting also not same)

4) any other brand recommend?

my take ...Panasonic for electric water heater, Rinnai for Gas heater.

My parents and myself been using 707 brand of water heater......

Regretted buying the Cornell Multi-purpose heater CIS-S100MP at $330. The heater leaked soon after it was installed, and we called the repairman to come and repair. Then after 8 months, the heater spoiled and we have to endure cold showers over the weekend while waiting for the repairman to come. After the repairman changed the heating element, there was hot water but the heater was leaking again! Very irritated by such over-priced lousy product!!!