How do you bleed a peerless boiler?

To bleed a Peerless boiler, first turn off the power and ensure the system is cool. Locate the air vent valves on the radiators and use a radiator key to open them slightly until water begins to flow, releasing trapped air. Once water flows steadily, close the valve and check the boiler's pressure gauge, adding water to the system if necessary. Finally, restore power to the boiler and check for proper operation.