Here at the heat is on, we put the knowledge of what you need directly in your hands as the homeowner, so you needn’t ask or wait for information from your electrician. Here we give you complete expert guidance for this specific heating element — so you can source all parts needed to ensure a smooth and successful installation of your electric / dual fuel towel rail or radiator when your tradesman arrives.

what is a heating element?

• A heating element is used as the heat source in an electric towel rail or radiator.
• It works by heating the water or oil inside the radiator, in the same way an element heats water inside a kettle.

temperature control & operation

• The KTX-1 is a detachable controller which powers the TS1 probe (sold separately), forming a complete and reliable heating element, allowing easy maintenance and replacement of the probe without removing the entire unit.
• The wattage output depends on the power rating of the probe purchased, allowing flexibility to suit different radiator sizes.
• Provides 2 heat settings which is controlled by 50% or 100% power - so this is a very entry level element where power controls the temperature here and not an actual thermostat reading actual temperature.
  
• No timer functionality.
• For more advances features see the KTX-2, KTX-3, KTX-4 and KTX-4 BLUE controllers.

element specifics

• Compact dimensions: 86mm length from thread down.
• Internal probe lengths vary by wattage — see the diagram in the image gallery.
• IPx4 rated, making it safe for use in bathroom environments.
• Class 1 device meeting electrical safety requirements.

wattage selection advice

• Choosing the correct wattage heating element is essential for safe and effective performance.
• Select an element with a wattage as close as possible to the radiator’s central heating (hydronic) output measured in watts.
• If the output is listed only in BTUs, convert using the formula: BTUs ÷ 3.41 = Watts.

installation

• Full installation instructions are provided in the accompanying manual, but here are some useful notes before fitting.
• Never switch on the element in open air — it must be submerged in the heating medium to operate safely. The element has a safety cut-out if it runs dry, so your tradesman should not test it by powering it on before installation.
• The supplied cable is 1.5 metres long and can be extended (daisy chained only) or cut to length as needed.
• Elements that have been fitted cannot be accepted for change-of-mind returns.
• When fitting, use a spanner around the metal neck of the element and turn it in carefully. Do not apply force to the plastic head, as this can crack the element.

electrification advice

• Before electrifying any towel rail or radiator, confirm that the chosen model is suitable for use with a heating element.
• Not all towel rails or radiators are compatible, as internal design and heat circulation vary between models.
• Installing a heating element in an unsuitable radiator may result in poor performance or failure, which will not be a fault of the element.

dual fuel advice

• When using this element as part of a dual fuel setup (electric in summer, central heating in winter), the towel rail should be bled regularly.
• Air can gradually build up inside the system, which may cause overheating if the element operates without sufficient water circulation.
• A heating element must never be operated dry, as this can cause excessive surface temperatures and damage towels or clothing.
• This works on the same principle as a kettle — never run it without water inside.

standard option vs. masking option

• You can choose to buy this element with or without the masking cover on the rear.
• The masking cover conceals the wire up to the entry point into the wall, providing a neater, tidier appearance.
• Important note: Masking requires the wall to be trowelled out; if walls or tiles are already finished, the standard (non-masking) option is recommended.
• Masking length varies between 52mm and 65mm according to technical drawings.
• The control head adds 42mm depth in front of the masking.
• This means the radiator’s “wall to centre of inlet” figure must be between 93mm (52+41) and 108mm (66+41) for the masking cover to fit.
• If the entry point is deeper than this range, the masking cover cannot be fitted.

guarantee & replacement

• Backed by a 2-year manufacturer’s warranty for added reassurance and peace of mind.
• Usual lifespan of a heating element is 4 to 7 years depending on use.
• At end of life, you can simply replace the heating probe (TS1) part of this element while the controller can continue to be used, making it a cost-effective long-term solution.