* All monthly pricing is a 5-year financing plan. The quoted price does not apply to duct upgrades, PVC changeouts, add-ons, duct cleaning, thermostats, city code requirements, mandatory building code upgrades, difficult access fees, any necessary retrofitting, or sales tax. Additional costs may apply.  The quoted price is valid for thirty days. Financing programs and monthly payments are estimates only, financing rates and payment amounts will be determined at the time of purchase and are based on customer qualifying and approved credit.