A system for installing tubing of hydronic thermal control systems in the walls, including ceilings, of buildings. It allows for the stable incorporation of the tubing in the walls while ensuring good thermal conductivity between the tubing and the building's room. The system features a wall including a hydronic thermal management system. The wall comprises a vertically-extending wall support structure, tubing panels secured to the wall support structure, the panels being constructed from wood material, tubing in the tubing panels for carrying a heat transfer fluid, and drywall panels secured over the tubing panels. A filling material is applied between the tubing and the drywall panels. Also a high thermally conductive layer, such as aluminum foil, is used between the filling material and the drywall panels or between the filling material and the tubing panels.