Resideo by HoneyWell Automatic Air Vent

The Resideo by HoneyWell Automatic Air Vent is a float-type air vent for hydronic (hot water) heating systems and boilers. It automatically releases trapped air from the system. This helps keep water circulating properly and cuts down on noisy pipes, cold spots in radiators, and uneven heating.

Key Features:

• Automatically vents air from hydronic heating systems without manual bleeding
• Float-operated design closes when water reaches the vent, which helps prevent leaks
• Built for boiler and hot water heating loop applications
• Helps improve heat transfer, circulation, and system efficiency
• Made by Resideo (Honeywell Home), a trusted name in heating controls and components

Trapped air can cause gurgling noises, reduced flow, and corrosion in a heating system. An automatic air vent removes that air continuously, so the system runs quietly and reliably. It is a useful repair or replacement part for boiler maintenance.