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ESI Controls Clamp-On Cylinder Thermostat ES CTS

ESI Controls

ESI Controls Clamp-On Cylinder Thermostat ES CTS

Clamp-on cylinder thermostat from ESI Controls, part ES CTS, for sensing stored hot water temperature at the cylinder surface.

Manufacturer part no.
ES CTS
Showing prices

£15.85

£13.21 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 ESI Controls Clamp-On Cylinder Thermostat (ES CTS) is a control device that fixes to the external surface of a hot water cylinder and senses the temperature of the stored water. It provides the temperature sensing input used to regulate the heat supplied to the cylinder, so the stored hot water is held at the set level.

Before you order

  • Confirm the part number and mounting method of the thermostat being replaced, so the new unit matches the installation.
  • Check that the cylinder surface at the clamp position is accessible and clear of lagging or insulation at the contact point.
  • Note the wiring arrangement at the existing thermostat before removal.

Not sure which part?

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