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Re:Harnessing America's Heat Pump Moment by caminante on Saturday October 25, 2025 @02:21AM (#45701699)
> Your overall NPV calculation seems a bit off.

Correct. It's 21y. I missed $500 from a reading error and was assuming $7.5k/y (not $8k/y).

edit: I see your mention of the grant, too. Combined, that's cutting the NPV=0 point in half from 21y to ~12y. Good job.

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