Anonymous wrote:I was PP who asked about manual j. It’s frustrating. In VA, it is required when installing or replacing an HVAC system but NO one offers one. I would love to find an independent manual j.
You won't find anyone doing a Manual J in residential work outside of new construction. We pay a ton of money to subscribe to a load calculator program that undergoes 3rd party testing & certification to meet the permit office's manual J requirements. And yes every time we pull a permit we submit the reports with the permit application. That being said upsizing/ downsizing capacity in existing homes, particularly with cooling, is a fools errand unless its grossly out of whack. All the reports in the world won't change a customers mind when the system "doesn't cool like the old one."