NSF International recently published the first in a series of American National Standards for geothermal piping systems — NSF/ANSI 358-1: Polyethylene Pipe and Fittings for Water-Based Ground-Source “Geothermal” Heat Pump Systems.
The
Essex Project, which debuted on Jan. 17, takes on the challenge of restoring a 1930s
cottage back to its original charm while adding updated amenities.
'Fiscal cliff' legislation retroactively reinstates the 25C tax credits for
highly efficient HVAC and water heating equipment that expired at the end of
2011.
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