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Viessmann Condensate Tee 7834991

Viessmann

Viessmann Condensate Tee 7834991

Viessmann condensate tee, part 7834991, for Vitodens 100-W boilers.

At a glance

  • Appliance family: Vitodens 100-W
  • Also known as 2321452
Manufacturer part no.
7834991
Showing prices

£15.17

£12.64 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

The Viessmann Condensate Tee (7834991) is a T-connecting piece used in the condensate route of Viessmann Vitodens 100-W appliances. It joins the condensate pipework so that condensate from the appliance is collected and directed to the drain. The part is listed by Viessmann as a T-connecting piece and sits within the condensate side of the boiler installation.

Signs this part needs replacing

  • Visible cracking or splitting at the tee body or branch
  • Weeping or dripping water at the joint or branch connection
  • Condensate backing up or pooling around the tee rather than draining away
  • Limescale, sludge or debris blocking the internal bore of the tee
  • Loose or perished seals where the tee meets the condensate pipework

Before you order

  • Confirm the appliance model and serial number against the fitment list
  • Check the existing tee for damage, blockage or leakage before removal
  • Identify the condensate pipework arrangement on the installation so the tee matches the run
  • Have suitable containment ready, as residual condensate will drain when the tee is removed

Not sure which part?

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