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In Reply to: RE: Help: Heating Contractors and new boilers posted by geoff on September 10, 2020 at 08:44:29:
That would be 85% or higher, right? Or even higher? Higher efficiency means lower natural gas use, right?
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- RE: Help: Heating Contractors and new boilers - MaxwellP 09/10/2009:48:41 09/10/20 (0)