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Edwin Pawlowski Edwin Pawlowski is offline
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Default Preheating water by running pipes through attic?


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Would it be worth it? ?Well, 2500 feet of refrigeration style 1/2" copper
tubing - enough for 25 gallons - would cost better than $6,000.
dadiOH
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USE PEX, its cheap!

Cheap, but has poor heat transfer properties compared to copper.