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Old 11-12-10, 09:15 AM   #7
Xringer
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From looking at the pictures on the web, I don't think the loops have to be very big.

Energy Savers: Insulate Your Water Heater Tank for Energy Savings

The nice thing about PEX is the price.. So, you can use 6" loops are 18" loops
and the price will be almost the same.
Even with the cost of the extra pipe insulation tossed in..

When I do mine, I'm going to try for about 8" and use the 'feel' test to make sure it's enough.
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