So the other day, when a friend ask me for some help replacing his water heater, I said, sure... (could uses the distractions) :-)
The older one, removed.
There was a mess of elbows on it to connect to the water lines!
Redid the hot water line from the T, added a valve and a 45 degrees elbow
to match the other side. Only had to add a thread adapter on the cold side.
Flex lines, stainless braided, will not burst, connect the water tank to the house plumbing. Next swap would be a breeze. (Within 10 years)
Did not trusted the wiring in place, the line (14/3) was coming from a light fixture ceiling box...???
Are you kidding me??
Green wire coming out on top is the 220V line to the water heater.
What we have is the switched 120V power from the light switch to the bulb and a dedicated (?) 240V line spliced inside same light junction box.
That is a big No-No. They even tied the red to ground??
When we pulled the fuse block (service entrance is the older fuse panel) for the water heater, there was some serious overheating damages to it and on one of the fuse itself (Discolored metal, Bakelite crumbling).
Something went very wrong and was probably over fused... Cannot read the fuse rating on the discolored ones.
Ran a new dedicated line, 12 Gauge to water heater straight from service entrance to water heater. Used a different unused slot in service entrance and a new fuse block, fused correctly. Removed old 240 V line from ceiling box.
Everything is back working...safely.
Had a look at where the old water heater leaked. Normally they always go on the bottom, caused by rust. Not that one!!
It bursted at the seam...
In theory, the safety valve is supposed to avoid pressure build up inside.
Somehow, that one bursted... Could had been much worse...
They were lucky, it could have caused a catastrophic water failure and it very well could had caused a electrical fire.
In theory, we are supposed to once a year, flush the sediment from the bottom of the tank, to avoid early rust failures. And test the safety valve to ensure it is not stuck closed. But honestly, who of us do that every year....
At best I do mine once in a while, but at least, it does get flushed and the valve exercised... once in a while.
Service life of these electric water heater is usually less than 10 years, hence why when you buy a house in Canada, if the water heater tank or the oil tank, if present... They must be less than 10 years old in order for your insurer to insured your house. Of course if you never sell your house, you may very well end up with the actual one until failure, whenever that is...
House maintenance, it never ends...
Bob, the age old maintainer, whose water heater is coming to the end of his service life...sigh!