$18,000 Seller Credit for Brand-New, Whole-House Central HVAC Upgrade! Seller is offering a generous credit at closing to install a premier, modern 5-ton heat pump system with dedicated ducting and vents in every single room. Enjoy energy-efficient central heating and powerful central air conditioning on day one! The main family room already features an independent heat pump system for immediate comfort while this full whole-house upgrade is being finalized. An official, professional contractor quote is in hand and ready for buyer review.