Vectren Energy Delivery offers its residential natural gas customers in Indiana rebates for the installation of certain high efficiency natural gas appliances and insulation measures. Rebates are available for furnaces, boilers, programmable thermostats, wall insulation, and ceiling insulation. In order to be eligible for a rebate, equipment must meet certain efficiency and installation requirements. Please see the program website for more information and a list of appliance models that meet the minimum standards. Vectren reserves the right to verify sales receipts and perform post-installation verification inspections. Rebate forms must be postmarked within 60 days after installation.