Be advised if you were charged a permit fee for your gas appliance water heater boiler furnace these items by maryland and virginia law they have to be inspected by a county inspector and signed off if you have had a gas appliance installed with no inspection be advised its law that company has to notify the proper inspector to have it inspected. if your unit has not been inspected call waldorf water and gas as to why. good luck and contact your local lics. and regulations dept u'll be happy you did infact call your local inspector you do have rights.