Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Ideal Tundish 176756

Ideal

Ideal Tundish 176756

Ideal tundish (176756) for Thermstore and Ideal Commercial appliances, directing discharge from pressure relief and expansion relief valves to a safe visible point.

At a glance

  • Part type: Tundish
  • Appliance family: Ideal Thermstore and Ideal Commercial
  • Also known as 1783128
Manufacturer part no.
176756
Showing prices

£66.23

£55.19 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 tundish is a discharge fitting used on unvented hot water systems and commercial appliances. It sits between the relief valve outlet and the final discharge pipe, giving a visible air gap where water can be seen if a valve lifts. This part is supplied by Ideal for use across its Thermstore range and Ideal Commercial appliances.

Signs this part needs replacing

  • Water escaping from the tundish body or its connections during normal operation
  • Scale, sludge or debris visible inside the tundish, restricting flow through the air gap
  • Cracking, distortion or physical damage to the tundish body
  • Discharge pipework no longer terminating with a clear, visible air gap
  • Water tracking back up the discharge pipe instead of running freely to the outlet

Before you order

  • Confirm your appliance model against the compatibility list, as the tundish is shared across several Thermstore sizes and Ideal Commercial units
  • Check the part number stamped or printed on the existing tundish before ordering
  • Note the alternative number 1783128 when cross-referencing against older documentation
  • Inspect the relief valve and discharge pipework at the same time, since a tundish is often replaced alongside the valve it serves

Not sure which part?

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