https://buckhalterac.com/blog/cost-of-an-hvac-system/
The cost to replace the equipment for a standard 14 SEER split system typically ranges between $7,500 and $10,000. #2: Mini-Split (Ductless) Systems.

https://www.familyhandyman.com/article/new-hvac-system-cost/?srsltid=AfmBOoocyjZiCqoH_9jvSaaMHzZ51a4QyCuhkMb_HHNa9hbYerAB1tMk
The cost of HVAC replacement depends on where you live and the nature of the system (furnace vs. heat pump). It could range from $3,000 to ...

https://www.ecowatch.com/hvac/new-hvac-system-cost
The average HVAC replacement costs between $5,000 and $10,000, with the national average cost around $7,000. If your HVAC system is less than 10 ...