Frequent air in radiators or system, gurgling noises, and need for repeated venting when using a Danstoker boiler.

Safety: Vent air carefully to avoid hot water burns.

• Check automatic air vents: Inspect and, if necessary, replace air vents on the Danstoker boiler and high points.
• Inspect pump suction: Ensure no leaks on pump suction lines that could draw in air.
• System pressure: Maintain correct static pressure to prevent air being drawn in at high points.
• Install or service deaerator: If not present, consider adding a deaerator; if present, ensure it is functioning correctly.

Persistent air problems may require a system design review.