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Old 12-31-12, 06:04 AM   #4
Mikesolar
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Our local gas utility gives them away. We have noticed a definite improvement and I put them wherever I can fit them in. The ones they give away are corrugated and can glue to the wall. I'm adding 3 more rads in the house to lower my entering water temp in prep to go from boiler to HP so all savings is good savings.
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