You're asking a lot of good questions, but I'm afraid there's not a lot of good answers right now. An HVAC contractor won't be able to tell you much. The best resource I have found is Rewiring America. Check out this IRA calculator they have. https://www.rewiringamerica.org/app/ira-calculator
yeny123 t1_jd6qjrx wrote
Reply to comment by MannyDantyla in I write The Washington Post’s Climate Coach column, where I help people figure out what they can do to help curb climate change. Ask me Anything! by washingtonpost
You're asking a lot of good questions, but I'm afraid there's not a lot of good answers right now. An HVAC contractor won't be able to tell you much. The best resource I have found is Rewiring America. Check out this IRA calculator they have. https://www.rewiringamerica.org/app/ira-calculator