The process of removing trapped air from hydronic heating systems, particularly radiators, is crucial for optimal performance. Air accumulation hinders the circulation of hot water, leading to reduced heating efficiency and uneven temperature distribution throughout a building. For example, a radiator that is warm at the bottom but cold at the top is a strong indicator of trapped air.
Maintaining efficient heating contributes significantly to energy savings and reduced operational costs. Inefficient heating systems place a greater demand on the boiler or heat source, increasing fuel consumption. Historically, venting radiators was a routine maintenance task performed regularly to ensure consistent warmth and prevent potential damage to system components.