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Andrews Gas Burner Orifice NG 10/145 7703891

Andrews

Andrews Gas Burner Orifice NG 10/145 7703891

Natural gas burner orifice (10/145) for Andrews water heaters, part number 7703891.

At a glance

  • Also known as 1823064
Manufacturer part no.
7703891
Showing prices

£13.00

£10.83 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 Andrews gas burner orifice (injector) NG 10/145, part number 7703891, is a metering component fitted to the gas burner circuit of Andrews water heaters. It regulates the flow of natural gas into the burner so the appliance runs at its correct input rate. This injector carries the size designation 10/145 and is intended for natural gas (NG) appliances.

Signs this part needs replacing

  • Burner fails to light or lights inconsistently
  • Weak, yellow or lifting flame at the burner
  • Soot deposits or blackening around the burner
  • Incorrect gas input rate or unstable combustion
  • Visible blockage, corrosion or damage at the injector

Before you order

  • Confirm the appliance is an Andrews Classicflo 10/145 or one of the models listed above.
  • Check the appliance is set up for natural gas (NG), not LPG.
  • Verify part number 7703891 against the injector being replaced.
  • Confirm the size marking 10/145 matches the existing component.

Not sure which part?

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