Frequently Asked Questions About Hydronic Air Elimination
What is hydronic air elimination, and why is it important in heating systems?
Hydronic air elimination refers to the process of removing air or other non-condensable gases from a hydronic heating system, such as a hot water boiler or radiant heating system. Proper air elimination is crucial because air in the system can reduce the system's efficiency, lead to noisy operation, and cause corrosion in the pipes and components. It can also result in uneven heating and potential damage to the boiler.
How does air get into a hydronic heating system, and what are the common symptoms of air in the system?
Air can enter a hydronic heating system through various means, such as during initial installation, through makeup water, or as a result of leaks. Common symptoms of air in the system include noisy operation, reduced heat output, and the need for frequent bleeding of radiators or baseboard heaters. Additionally, air can cause the formation of air pockets in the system, preventing hot water from circulating effectively.
What are the methods and devices used for hydronic air elimination?
There are several methods and devices used to eliminate air from hydronic heating systems. Common approaches include manual bleeding, automatic air vents, and air separators. Manual bleeding involves opening valves or vents to release trapped air periodically. Automatic air vents are installed at high points in the system and use a float or a float switch to release air automatically. Air separators are devices that use centrifugal force to separate air from the water, allowing it to rise to the top for removal. The choice of method or device depends on the specific characteristics of the heating system and the preferences of the installer.