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 electric towel rail — including details of any additional parts required — so you can ensure a smooth and successful installation when your tradesman arrives.

heat output

• Firstly, if you haven't already done so - use our heat calculator to work out your specific requirements for your room to ensure you are looking at the right size electric radiator - in terms of the Watts / Kilowatts heat output it gives.

design & material

• FIONA E combines geometric shapes with an elegant twist, pairing square uprights with grouped round bars.
• A refined upgrade from standard ladder rails, offering a more distinctive and premium design.
• Features grouped horizontal bars in sets of four, with purposeful spacing between each set for easy towel placement.
• Square-profile uprights provide structural clarity and a clean, modern aesthetic.
• Rear-mounted brackets maintain an unobtrusive look and maximise full-width hanging space.
• Designed to a higher specification, ensuring enhanced functionality and an elevated finish.
• Made from low carbon mild steel.
• Additionally, we have created a thorough and detailed technical guide on electric radiators, giving even more information and tips.

full range of sizes available

• In addition to the sizes we are displaying here on the heat is on - you can view the full range of 54 different sizes of FIONA E here on the Terma website.
• We can process a special order for any size you wish to purchase if that size is not shown on our website.

control & functionality

• Uses the Terma MOA IR heating element.
• The MOA IR has 5 temperature settings that range from 30°C to 60°C.
• 2 hour drying function for convenient timed heating.
• Infrared (IR) receiver for use with Terma TTIR portable thermostat/controllers or DTIR wall-mounted controllers (sold separately).
• Accurate internal temperature regulation for consistent heating performance.

colour & finish

• Painted in Per (premium wet paint).
• Finished in a metallic, smooth texture.
• This is a premium wet paint which is painted using a hand finished liquid paint (as opposed to an automated powder paint - so this paint is more expensive). This creates a deeper more metallic type finish.
• Note: If you don't have the budget for a premium wet paint - the closest colour match to this colour in a powder paint would be the Sienna colour - which is not quite a brass and a slightly darker gold. This will cost the same as the standard powder colours (approx. 25% less). You'll need to call us to request this colour as we don't list this model in Halo on the website yet.
• A 150×50mm colour chip of this finish is available to purchase for preview (link to colour chip will be on right-hand side of page).
• Additionally, we have created a thorough and detailed technical guide on paint finishes and colours giving even more information and tips.

installation & features

• Element is pre-fitted inside the radiator (left-hand side, E1 connection). If you would like it on the right-hand side (E8 connection), please contact us to place this as a special order. Consider where your electric supply will be so the wire has the shortest distance to travel.
• The KTX 4 Square controller is supplied separately in the packaging – simple push-fit installation with adjustable viewing angle.
• Quick and easy installation – no commissioning or complex setup required.
• Manufactured from high-quality steel for long-lasting performance.
• Note: The cable masking cover shown in the images at the rear of the element, which covers the wire up to the entry point into the wall, is included with this KTX 4 element model.

safety & compliance

• IPX5 rated – safe for use in bathrooms.
• Oil-filled for efficient, consistent heat distribution.
• Class 1 electrical appliance.
• UKCA approved.

guarantee, warranty and replacing the heating element

• 2-year manufacturer’s warranty (heating element).
• Usual lifespan of a heating element is 4 to 7 years dependent on use.
  • At end of life, you can simply replace the MOA IR heating element — making replacement a cost-effective and straightforward process.
• 12-year manufacturer’s warranty (radiator).