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Johnson & Starley Reno 25/30kW heat exchanger assembly 1000-0301495

Johnson & Starley

Johnson & Starley Reno 25/30kW heat exchanger assembly 1000-0301495

Primary heat exchanger, rated 25/30kW, for the Johnson & Starley Reno 25H, 25S and 30C boilers.

At a glance

  • Also known as 1691750
  • Have the replacement fitted by a Gas Safe registered engineer
Manufacturer part no.
1000-0301495
Showing prices

£839.48

£699.57 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 1000-0301495 is a primary heat exchanger, rated for 25/30kW output, fitted to Johnson & Starley's Reno boiler range. It transfers the heat produced by the burner into the water circulating through the appliance.

Signs this part needs replacing

  • Water leaking from around the heat exchanger
  • Reduced or fluctuating hot water/heating output
  • Kettling or banging noises when the boiler fires
  • Lockouts linked to overheat or flow sensors

Before you order

  • Confirm your exact model and output rating against the fits list
  • Match the part number printed on your existing heat exchanger
  • Isolate gas, electricity and water before removal
  • Have the replacement fitted 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.