Ideal Automatic Air Vent Kit - 175804

The Ideal automatic air vent is an essential safety component designed for central heating units. ...

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Product Information

Full details

The Ideal Automatic Air Vent Kit is designed for professional heating engineers and homeowners managing central heating systems who need to maintain optimal circulation. Its key benefit is the automated, maintenance-free removal of trapped air, which prevents noise and improves heat distribution throughout radiators. A primary caveat is that it requires an existing compatible connection point within the pipework, and incorrect installation may lead to leaks, so it is best suited for those comfortable with basic plumbing tasks or professional installation.

All features

Model Part Number175804
BrandIdeal

Extended Product Information

FAQs

Does this vent require manual bleeding?

No, this is an automatic air vent designed to bleed air without the need for a manual key.

Can I install this on its side?

No, the internal floatation mechanism depends on gravity and must be installed in a strictly vertical position.

Is the O-ring included in the 175804 kit?

Yes, the kit comes with the necessary O-ring for a secure and watertight installation.

Why does my radiator still have a cold spot?

While this vent removes air at the install point, it cannot fix blockages like sludge in the radiator. Ensure your system is clean.

What is the primary function of the float inside?

The float acts as a seal; it rises with water to keep the valve closed and drops when air is detected to allow that air to escape.

Troubleshooting

Water is leaking from the top vent

Debris may be preventing the float from sealing. Remove the cap and clean the seat, or tap the side of the unit to dislodge potential sediment.

Air is not being released from the system

Verify the unit is installed perfectly upright. If the unit is tilted, the float will not drop correctly to open the air release valve.

Pros and Cons

Pros

  • Reduces air-related noise in the central heating system
  • Prevents cold spots in radiators caused by trapped air
  • Fully automatic operation saves time on manual bleeding
  • Complete kit includes necessary O-ring for immediate setup

Cons

  • Requires proper vertical orientation to function correctly
  • May leak if debris gets trapped in the valve seat
  • Not intended for non-pressurized or steam heating systems

Setup, Compatibility & Care

To install, ensure the heating system is depressurized and cool. The vent must be installed in an upright, vertical position; if installed at an angle, the internal float will not move freely, rendering the unit ineffective.

  1. Ensure the mounting port is clean of debris.
  2. Place the included O-ring onto the thread.
  3. Tighten the vent into the system port by hand or with a wrench, being careful not to overtighten and damage the housing.
  4. Periodically inspect the cap for signs of salt buildup or leakage, which may indicate that the internal float is stuck due to system impurities. If the vent is old, simply replacing the insert can restore full functionality.