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Dual Safety Thermostat TS225

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Dual Safety Thermostat TS225

Dual safety thermostat with an 11 inch probe, intended for vented immersion heaters.

Manufacturer part no.
TS225
Showing prices

£7.01

£5.84 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

A dual safety thermostat supplied under the product name Dual Safety Thermostat 11 Inch. It is used on vented immersion heaters, where the thermostat controls the stored water temperature and the safety function cuts the element out if the set temperature is exceeded. The 11 inch probe length is the defining dimension of this variant.

Signs this part needs replacing

  • The immersion heater boils the cylinder or the water becomes excessively hot
  • The safety cut-out operates repeatedly and the cylinder goes cold
  • No hot water is produced even though the element and supply are sound
  • Water temperature is erratic and does not match the thermostat setting
  • Visible damage, corrosion or a loose probe on the existing thermostat

Before you order

  • Confirm the existing thermostat probe is 11 inch long, as probe length must suit the immersion heater boss depth
  • Check the appliance is a vented immersion heater installation
  • Confirm the wiring layout and terminal arrangement of the existing dual thermostat before removal
  • Isolate the electrical supply to the immersion heater before working on the thermostat

Not sure which part?

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