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Johnson & Starley Siphon Conversion Kit S01450

Johnson & Starley

Johnson & Starley Siphon Conversion Kit S01450

Siphon trap conversion kit for Johnson & Starley Reno 25H, 25S and 30C gas boilers.

At a glance

  • Also known as 1691890
Manufacturer part no.
S01450
Showing prices

£67.55

£56.29 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 S01450 is a siphon trap conversion kit manufactured by Johnson & Starley. It replaces the siphon trap assembly on Reno series gas boilers, forming part of the condensate removal path. The kit is supplied as a conversion assembly rather than a like-for-like trap.

Signs this part needs replacing

  • Water or condensate leaking from around the siphon trap
  • Pooling or damp patches beneath the boiler casing
  • Visible cracking, distortion or heavy scale build-up on the trap body
  • Boiler locking out or shutting down because condensate cannot drain away
  • Siphon trap blocked or holding water after cleaning

Before you order

  • Confirm your boiler model is a Reno 25H, 25S or 30C
  • Check the existing siphon trap and condensate connection arrangement against this conversion kit
  • Verify the part number S01450 on the existing component or the manufacturer's parts list
  • Confirm whether the rigid condensate connection also needs replacing as part of the conversion

Not sure which part?

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