Double groove aluminum heat emission fin
14.5″ wide x 8″ long and preformed for 1/2″ or 5/8″ tubing.
The purpose of your radiant heating system will be to make heat in the form of warm water (in an efficient manner, we hope) and then transfer that heat to your floor. Some process must take that heat away from the tubing and apply it to the underside of the floor so that the floor can heat the area above. Aluminum is a material that transfers heat exceptionally well but it is expensive, and its use should be carefully balanced against other methods of doing the same thing, and its application should be optimized for performance and cost effectiveness.