This is a 3kw, 14inch immersed length AESTB335 Incoloy Immersion Heater complete with combined (operating & safety cut-out) plug-in thermostat and is typically used within standard unvented domestic water cylinders.. Installed products will often carry the ThermTec brand which is owned and manufactured exclusively by Heatrod Elements in Manchester. The AESTB 335 can be used in all standard domestic water areas including normal use in hard water areas susceptible to limescale. If particularly aggressive water conditions are present or the duty/usage is higher than normal then we would recommend an equivalent product with titanium element which is the AESZB340.
This immersion heater is most commonly fitted with Cotherm TSE00187,
Diamond-H WTS, TSR00014 and Thermowatt RTS-3 dual function thermostats
See our “Thermostats & Controls” section for more details and to purchase these products.
The AESTB-335 is designed to meet European Standards EN 60335-2-73:2003 +A1:06 + A2:09 used with EN 60335-1:2012 for the safety of electrical appliances that heat liquids for household and similar purposes. Testing has been carried out and the product approved by NEMKO – certificate available on request
If you have a question about any of our products simply submit it and we'll get back to you as soon as we can. Alternatively just call us on 0161 727 3713 and we'll do our best to make sure you get the right part.