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Vaillant ecoTEC plus 826 heat exchanger 0010029044

Vaillant

Vaillant ecoTEC plus 826 heat exchanger 0010029044

Genuine Vaillant heat exchanger, part number 0010029044, for the ecoTEC plus 826 (20/26 CS/1-5) condensing boiler.

At a glance

  • Part type: Heat exchanger
  • Also known as 1391668
  • Have the work carried out by a Gas Safe registered engineer
Manufacturer part no.
0010029044
Showing prices

£370.46

£308.72 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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

This is Vaillant's heat exchanger, part number 0010029044, fitted to the ecoTEC plus 826 condensing boiler. It transfers heat from the burner into the water circulating through the boiler's central heating and hot water circuits.

Signs this part needs replacing

  • Boiler kettling or making unusual banging/rumbling noises
  • Reduced heat output despite the burner firing normally
  • Signs of corrosion, scale or leaking around the exchanger
  • Boiler locking out on an overheat or flow fault

Before you order

  • Confirm the part number printed on your existing heat exchanger matches 0010029044
  • Check your exact boiler model and GC number against the fitment above
  • Isolate power, gas and water before removal
  • Have the work carried out by a Gas Safe registered engineer

Not sure which part?

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