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Ideal Automatic Air Vent Mexico HE 30/36 174174

Ideal

Ideal Automatic Air Vent Mexico HE 30/36 174174

Ideal automatic air vent kit for Mexico HE30 and HE36 boilers, using a float mechanism to release trapped air from the heating circuit.

At a glance

  • Part type: Automatic air vent
  • Also known as 1179890
Manufacturer part no.
174174
Showing prices

£19.63

£16.36 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Ideal automatic air vent is a pressure safety device fitted inside the central heating unit. It uses buoyancy to release air that builds up as water moves through the boiler's heating and cooling circuit: a float inside the vent rises and falls with the water level, opening and closing the outlet so trapped air escapes while the system stays sealed. This kit is supplied by Ideal for the Mexico HE range.

Signs this part needs replacing

  • Radiators that need bleeding repeatedly, or that stay cold at the top
  • Gurgling, bubbling or rushing water noises from the boiler or pipework
  • Boiler pressure that rises and falls without obvious cause
  • Water weeping or dripping from the vent body or its connection
  • Air-related lockouts or overheating faults that return after venting the system manually

Before you order

  • Check the GC number on the appliance data badge against the compatibility list to confirm the boiler variant
  • Confirm the model is a Mexico HE30 or HE36 before fitting
  • Inspect the vent connection and any sealing washer on removal, and renew if it is perished
  • Isolate the appliance and drain or depressurise the relevant section before removing the old vent

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.