Harold Grinspoon Charitable Foundation scans homes with thermal cameras in hopes of energy savings

Harold Grinspoon, the 87-year-old philanthropist behind the effort, said the photos were all taken from a public street, show no detail and can't capture images of what's going on inside a home.

LONGMEADOW -- Researchers hired by Longmeadow philanthropist Harold Grinspoon scanned 100,000 homes in 10 Pioneer Valley communities with a thermal camera last winter. Starting in September, owners of homes with the worst heat leakage will get letters from him...

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