Replace existing system with below mentioned equipment. Add Sun Power/Sun Source 7.2 KW solar system Total Due upon completion $22,177.00 for HVAC. After Clean Air Furnace rebate and LENNOX rebate (paid to customer) Total $20,577.00 HVAC and Sun Power 7.2kw Solar system ($28,800) Combined = $50,977.00 26% Federal Tax Credit amount $13,254.00. Total System cost after all rebates and tax credits $36,122.00