alt.energy.homepower

"Eeyore" wrote in message
news: @ ...
>
>
> Jim wrote:
>
>> "Eeyore" wrote
>> > An ideal material for this application is a wax like paraffin ? wax. If
>> > you get the right one, it has a phase change between solid and molten
>> > at a
>> very
>> > useful temperature which will help 'regulate' your hot water temp.
>>
>> Ah, but I would have to =buy= that. I think that goes against my
>> religion somewhere.....
>
> The advantages are HUGE though. A quick google and I reckon 1 cubic metre
> will
> store ~ 60kWh at a stable and comfortable temp for your hot water.

Surely you jest. That's something like 190,000btus....? Right? The
propane furnace that heats my home only puts out 80,000/hr.
What sort of paraffin is this? Remember, we have different names for
things here in the colonies.... And what is its melting point?

>
> In comparison a similar quantity of water will lose ~ 60 degrees C
> delivering
> the same amount of energy.

That's not good.
Graham old chap; may I ask, are you an engineer or something? Everyone
else in my family is but I am not.
>
> Graham
>