Domestic Immersion Heaters

Info & Product Examples

Heatrod Elements supply the largest range of domestic immersion heaters in the UK. Through many years of experience and supply into this market Heatrod have build up a vast library of replacement immersion heaters and parts. In more recent years the acquisition of Thermtec Ltd has also added to our range of products which are traditionally fitted into many common household water cylinders. Cylinder brands such as Albion, Range, Copperform, Aquastel, Stelflow and many more can all be fitted with our products. The CESTB-340 range of Domestic Immersion Heaters were designed by us and are manufactured to the original specifications only by us.

Depending on application our standard domestic immersion heater product range are branded Heatrod, Thermtec and SHEL and are designed for use in both unvented/vented and copper/stainless steel hot water cylinders, having different controls and settings dependent on application. Ranging from simple high temperature safety cut out to very specific operating temperature spectrums for Thermal Store applications we’ve got it covered.

eCOHeat – for Solar & Marine applications – We manufacture low energy immersion heaters from our eCOHeat range. These are supplied in 1kw and 2kw formats and are aimed at renewable and marine applications which require low wattage heating. Installation into Solar, Ground Source and Air Source heating systems caters for the lower energy being generated on site. This is also an ideal fit for many Marine applications where lower power consumption is a requirement. See these products in our online shop through the menu link or via the “buy now” link below.

We also provide a bespoke service for many styles of Immersion Heater so in the unlikely situation where we cannot reference a product to our standard and stock ranges we will make a unit to your requirements! – Either fill in the online enquiry form or speak to our  sales team who have over 100 years of industry experience!

Common UK Cylinder Immersion Heater

The CESTB-340 range of products is a replacement immersion heater for common unvented water cylinders such as Albion, Range and Copperform.

CESTB-340 Domestic Immersion Heater


Model Boss Size Max. length
CESTB-340 1.75″ BSP 16″ Immersed Length
Material Incoloy 800
Loading 3kw, Element Diamter: 8mm
Design Head Thread Size: 1.75″ BSPImmersed Length: 16″ (406mm)Thermostat Length: 11″
Voltage 240v
Optional Fixing devices
Others Dual function removable thermostat with secondary protection
  • Easy fitting for replacement
  • Common to many unvented cylinders
  • Removable ‘Pocket’ Thermostat to avoid drain down
  • The original and the best!
Fields of application
  • Unvented Water Cylinders

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Buy online

Product code Boss Size KW/Length Buy online
CESTB-340 1.75″BSP 3kw/16″Imm. buy now
eCOHeat HE111A 2.25″BSP 1kw/11″Imm. buy now
80014ATS 2.25″BSP 3kw/14″Imm. buy now
80018ATS 2.25″BSP 3kw/18″Imm. buy now