Robert Smits wrote:
On December 24, 2007 09:26:53 am Randall R Schulz wrote:
On Monday 24 December 2007 09:24, James Knott wrote:
Randall R Schulz wrote:
On Monday 24 December 2007 09:11, James Knott wrote:
...
Boilers requires a specific trade to install & service, because
when water heats, it expands and releases steam, which cause a
significant increase in pressure. A boiler that ruptures under
pressure is comparable to a bomb.
Even worse, in some sense: it's a BLEVE!
What does "BLEVE" mean?
BLEVE stands for Boiling Liquid expanding Vapour Explosion. It's what you get
when you heat up, say, a Propane Tank Car until the liquid propane boils off
enough vapour for an explosion. I've been present when a 1/3 section of
railroad tank car sailed more than a thousand feet toward me.
I don't think a hot water tank will do that but boilers can, and plumbers
obviously need to be properly trained.
Yes, they will. On the show "Mythbusters," they jammed shut
the relief valve on a hot water-heater, and also disabled
the thermostat, and put it inside a shack.
The whole water heater took off like a rocket.. .the shack
(built with normal construction techniques used for walls
in houses, roof joists, etc) was completely destroyed.
What was most interesting is that the roof stayed somewhat
together, but there was a cartoon-like hole in the roof
where the water heater went right through it like a
bullet through a paper target.
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