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Johnson & Starley Plate Heat Exchanger 1000-0301535

Johnson & Starley

Johnson & Starley Plate Heat Exchanger 1000-0301535

Plate heat exchanger for Johnson & Starley RENO 30C and Renoxtra 30C / 37C gas boilers, part number 1000-0301535.

At a glance

  • Part type: plate heat exchanger
  • Also known as 1691323
Manufacturer part no.
1000-0301535
Showing prices

£209.06

£174.22 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 Johnson & Starley 1000-0301535 is a plate heat exchanger used in RENO 30C and Renoxtra 30C / 37C gas boilers. It transfers heat from the primary circuit to the domestic hot water supply while keeping the two water paths separate within the appliance.

Signs this part needs replacing

  • Domestic hot water runs hot and cold, or the temperature fluctuates at the tap
  • Reduced hot water flow rate or poor hot water performance
  • Water weeping from the plate pack or its connections
  • Scale or debris restricting flow through the plate channels
  • Pressure changes or discoloured water indicating cross-contamination between the heating and hot water circuits

Before you order

  • Check the appliance data badge to confirm the model and GC number
  • Confirm the part number on the existing component is 1000-0301535
  • Check whether the O-rings and screws are required for your installation

Not sure which part?

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