Up to an $8,000 combination rebate/tax credit for installing an electric heat pump system-If your system is now not all electric-you could replace your main system with a heat pump,and just include ducting a lanai area,or whatever else you were considering. IF your income qualifies (pretty high threshold for at least half that mount). Part of the Inflation Reduction Act and called 'HEEHRA'
Understanding The High Efficiency Electric Home Rebate Act (HEEHRA) - CleanTechnica
Before you discount it,'low' income is defined as less than $68,000,and moderate income is defined as no more than $124K a year (both per couple).