Thermostats for Immersion Heaters

Accurate and Safe Temperature Control for Domestic and Industrial Systems

Backer supplies a wide range of thermostats designed for use
with immersion heaters in both domestic and light industrial applications.
These include single-function, dual-function, and high-temperature models, all
built to ensure safe, reliable, and compliant operation.

7 in bmst thermostat

Thermostats

Rod Thermostat, suitable for direct replacement
7", 11", 18" BT type thermostats
7", 11", 18" BMTS Backer Rod Thermostats with integral secondary manual cut-out
11" BP11 Backer Plug-In type Rod Thermostat quick connection with integral secondary manual cut-out

All Available Thermostats

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43 products

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43 products

Type
Length

43 products

Single Function Thermostats

Features

  • Available in 7", 11", and 18" rod lengths
  • Fixed or adjustable temperature settings
  • Push-fit or wired connection options
  • Designed for use in vented cylinders and basic heating systems

Advantages

  • Simple and cost-effective
  • Easy to install and replace
  • Suitable for standard domestic water heating

 

Dual Function Thermostats

Features

  • Combines control thermostat and manual reset safety cut-out
  • Available in standard and high-temperature versions
  • Compatible with vented and unvented cylinders
  • Includes models such as Cotherm TSE00187, Thermowatt RTS-3, and Backer BMST

Advantages

  • Enhanced safety with integrated thermal protection
  • Compliant with modern water heating regulations
  • Suitable for both domestic and commercial systems

 

High Temperature and Industrial Thermostats

Features

  • Designed for high-demand or industrial environments
  • Higher current ratings (up to 16A)
  • Includes models like Diamond-H WTS and Cotherm TSDH1107
  • Suitable for use with Incoloy and Titanium industrial heaters

Advantages

  • Reliable in harsh or high-temperature conditions
  • Long service life and robust construction
  • Ideal for process tanks and commercial buffer systems

 

Cut-Out Devices and Accessories

Features

  • Manual reset cut-outs for secondary safety
  • Compact and easy to retrofit
  • Designed to work alongside digital or external controllers

Advantages

  • Adds an extra layer of protection
  • Ideal for systems with external control logic
  • Cost-effective safety enhancement