What type of insulation is commonly used for hydronic pipes?

Fiberglass insulation is commonly used for hydronic pipes due to its excellent thermal insulation properties and resistance to moisture. It effectively reduces heat loss from hot water pipes, which is crucial in hydronic heating systems where maximizing efficiency is important. Fiberglass is constructed from fine glass fibers, which create a structure that traps air, providing significant thermal resistance (R-value). This helps to maintain the water temperature within the pipes, improving overall system performance and energy efficiency.

Moreover, fiberglass insulation is relatively lightweight, cost-effective, and easy to install around pipes of various sizes. Its non-combustible nature adds a layer of safety, making it suitable for numerous applications within hydronic systems. In addition, it can come in various forms, such as batts, rolls, or pre-formed pipe sections, allowing for flexibility in installation based on the specific requirements of the piping system.