When your furnace no longer can perform to your requirements, or your process requirements have moved outside of your furnace capabilities, AVS is ready to help. Customers with older AVS furnaces often have their furnaces upgraded with the most current controls, instruments, new accessories or hardware. There are also customers with furnaces manufactured by other vendors who have AVS upgrade elements of their furnaces; after all, other furnace manufacturers won’t do it. See the Furnace Upgrades section for a complete summary of AVS upgrades capabilities.