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CORRECTION: "He came out just slightly better for electric, until I
reminded him of the heat going up the flue. " That should
read 'slightly better for PROPANE'. Cynthia,
Prescott, AZ
>>"I may
be mistaken, but greenhouse PC has UV trappers to prevent its own
degradation. Won't that attenuate its transmission?
>>Ray Barkalow - First Rays Orchids - www.firstrays.com" Ray, you make a good point. Not only the
Polycarbonate, but my horticultural bubble insulation and my horticultural
plastic sheeting are probably removing UV for the same reason. Too
bad. I will have to re think this. Thanks for the
reminders. Cynthia
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