[RE-wrenches] Pt valves as overheat control

[jay peltz]

Hi Drake,

I don't know if you ever watch Myth Busters, but google them and check  
out the water tank they exploded.

Short version is they took a standard 40 gallon electric tank, put  
into a small building, no PT valve, heated it until it exploded.
It flew something like 200' into the air, just amazing and super scary  
to see.  I'm with Jeff, I'd put a second in just for safety.

jay

peltz power
On Nov 11, 2008, at 4:40 PM, Drake Chamberlin wrote:

>
> At 09:15 AM 11/11/2008, you wrote:
>> My question....is there a more robust version of that P/T valve
>> that I should be using? Something that you would use in a boiler  
>> perhaps?
>
> I'm not really a hot water guy either, but I'm scheming on putting  
> in solar hot water with a wood stove backup loop.  I was thinking of  
> using a valve from a dishwasher or washing machine.  They are  
> electrically controlled, and designed to take hot water straight  
> from the tank.  Control the electric valve with an aquastat.  If  
> there is no place to thread the aquastat into the tank, it would be  
> more difficult, but still possible with a bit of plumbing.  For sure  
> the T/P valve would be needed for whenever the power went down.
>
>
> Drake Chamberlin
> Athens Electric
> OH License 44810
> CO License 3773
> 740-448-7328
> 740-856-9648
>
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