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

• QUADRUS SLIM E is designed with a single-layer bar configuration.
• The flat bars and closely spaced gaps create a distinctive, fuller appearance compared to standard ladder rails.
• The front bars protrude from the uprights, providing a generous space for easily hanging towels.
• Made from low carbon mild steel.

• Additionally, we have created a thorough and detailed technical guide on electric towel rails, 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 4 different sizes of QUADRUS SLIM 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 KTX 2 heating element.
• The KTX 2 has 5 temperature settings that range from 30°C to 60°C.
• 2 hour drying function for convenient timed heating.
• Accurate internal temperature regulation for consistent heating performance.

colour & finish

• Painted in Old Bronze (premium wet paint).
• Finished in a metallic, smooth texture.
• This is a premium wet paint which is applied by hand (as opposed to automated powder coating), creating a deeper, more metallic finish.
• 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 - located on the right hand side (E8 connection). If you would like the heating element on the left hand side (E1 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 2 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.

safety & compliance

• IPX4 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 TS1 heating probe inside this model, as the external KTX controller is a separate unit — making replacement a cost-effective and straightforward process.
• 12-year manufacturer’s warranty (radiator).