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Old 06-13-18, 12:49 PM   #12
Journeyman EcoRenovator
Join Date: Feb 2010
Location: Arab, AL
Posts: 491
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I'd start with an Home Energy Audit. It helped me decide on the best size HVAC to install, which was smaller than the "rule-of-thumb" values every contractor came in with. {The savings on the smaller unit paid for the audit.} The auditor also told me that adding just 5" more insulation would drop my required unit another 1/2 ton of capacity. So, I added 10" more since insulation is cheaper than electricity and it settles over time.

He went through the house checking things I would've never thought of, and that I made changes to. My $0.02 worth. Good luck with your endeavor.
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