Click an image for quick access to individual content. If you are looking for a replacement part for a THERMAFLOW, click the parts list image. You will be taken to an interactive tool that will help navigate you to the part you are looking for. If you only know the part by its function and are looking for its internal part number, the parts list tool will inform you of the parts number in the STAC system. If you do not know a parts function or internal number, the parts list tool will guide you to what you are looking for through a series of questions and pictures of each individual part for every individual model.