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Old 14 March 2017, 03:22 PM
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GenYus234 GenYus234 is offline
 
Join Date: 02 August 2005
Location: Mesa, AZ
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The article says that neighboring houses have retaining walls. Also, if the other houses are inhabited, then residual heat (plus the residents periodically clearing off the ice) may also be responsible.

ETA: Oops, should have refreshed.
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