Each hot water radiator should have an air vent at the top, on the side opposite the inlet pipe. You’ll use this vent to “bleed” air from the radiator when you’re first s...
Hot-Water Heating → Venting Help Topics
This section is your guide to hot-water heating systems with information about system design and piping, air elimination, pumping away, primary-secondary pumping, valves, radiators, troubleshooting tips, and more.
Recent Articles in Hot-Water Heating → Venting
Where Does the Air Vent Belong on a Hot-Water Radiator?