TWA offers a wide array of products to match almost any application and any size of commercial project; from the very large - TransCanada Pipeline 38 story tower in Calgary to small renovation project requiring just a few radiant panels.TWA is able to meet the needs of the large projects with ease in our 47,000 ft manufacturing plant. The three main types of radiant panels we manufacture, for heating and cooling, are the linear panel, the modular panel, and the security panel.