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Heat Resistant Material

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#1 Nicabbq



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Posted 17 March 2017 - 05:40 PM

I need a reccomendation on a heat resistant material for temp up to 300 degrees. Will be used in solar water heater. Should be readily available and inexpesive.
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#2 John Cuthber

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Posted 17 March 2017 - 07:47 PM


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#3 Bender



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Posted 17 March 2017 - 11:06 PM

Steel, aluminum, casting iron, stone...

If you go for glass, I'd recommend pyrex.


What shape does it need to have? What are other requirements?

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#4 DrP



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Posted 18 March 2017 - 12:06 PM

What part of your solar water heater do you need this material for?  Heat conductive material is best for housing the pipes - that way any heat absorbed by it from the sun can conduct through the pipes into the water easily. You can insulate the body of the the unit, but heat conductivity is what is needed between the pipes and the heat capture sheet/housing. 


The use of 'squashed' copper piping painted black improves the absorption too iirc. Black for obvious reasons (it absorbs the heat), squashed slightly so that a larger surface area of pipe gets incident rays and thus more absorption of energy. 

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