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, ensuring you are looking at the right size electric radiator in terms of the Watts / Kilowatts heat output it provides.

design & material

• Terma aims to think differently when conceiving its towel rail designs, and SIMPLE ONE has simplicity at its core with a very subtle, minimalist design.
• Features the internalised ONE heating element which is fully integrated within the towel rail for a minimalist design when compared to other electric towel rails on the market.
• Sleek, concealed design with no external components of the heating element visible at the bottom of the rail.
• Has the option to also fully conceal the cable from view (as seen in the lifestyle shots) – see the installation section below for more notes on this.
• All electronic components are housed within the vertical bar above the controller, leaving the lowest horizontal bar as a decorative feature (it does not contain oil or heat up, but the rail still delivers the listed output). It won’t be cold to the touch, as the material still conducts heat.
• SIMPLE ONE features square profile brackets in a matching colour to the towel rail, so every detail has been carefully considered.
• The brackets are located on the rear of the uprights, leaving the full width of the bars free for hanging towels.
• It might seem that the concept of a ladder cannot yield new ideas, but the power here comes from simplicity.
• Both its modern form and functionality make SIMPLE a real eyecatcher and an attractive bathroom feature.
• The accessory range includes wooden shelves and a metal hanger insert. Shelves are available in Oak or Beech, ideal for extra storage or display.
• 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 displayed here on the heat is on, you can view the full range of 8 different sizes of SIMPLE ONE here on the Terma website.
• We can process a special order for any size you wish to purchase if it is not shown on our website.

control & functionality

• The Terma Internal ONE heating element has two heat settings: 45°C and 60°C, indicated by a multi-coloured LED.
• Controlled via a single button discreetly located on the underside.
• 2-hour drying function for convenient timed heating.
• Compatible with external timers, retaining settings when switched off.
• Includes an Infrared (IR) receiver for use with Terma TTIR portable thermostats or DTIR wall-mounted controllers (sold separately).
• Accurate internal temperature regulation for consistent heating performance.

colour & finish

• Painted in Bottle Green (premium wet paint).
• Finished in a metallic, smooth texture.
• This is a premium wet paint painted using a hand-finished liquid process (as opposed to an automated powder paint), creating a deeper, more metallic 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 Green Cholrophyl colour, which is slightly darker than brass and costs approx. 25% less. You'll need to call us to request this colour.
• A 150×50mm colour chip of this finish is available to purchase for preview (link on the right-hand side of the 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 electric towel rail, located on the right-hand side (E8 connection). If you require a left-hand element (E1 connection), please contact us to place a special order. Consider the location of your electric supply to minimise cable routing.
• Control button discreetly located on the underside, with a miniature front-facing LED panel.
• Supplied with a 1.5m cable for connection to a fused spur (no plug included).
• Cable exits discreetly through the bottom mounting bracket above the heating element and can be fed through the wall for a neat installation (or left exposed if wall chasing is not possible).
• Quick and simple installation; no commissioning required.
• This electric towel rail is not supplied with a plug and must be connected to a switched fused spur. If not installed in a bathroom, a plug can be fitted. For plug-and-play options, see Wi-Fi models fitted with VEO elements.

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 an internalised heating element

• 2-year manufacturer’s warranty (heating element).
• Usual lifespan of a heating element is 4 to 7 years, depending on use.
  • At end of life, internalised heating elements must be returned to Terma UK for replacement due to the construction of the unit. Alternatively, a full replacement unit can be purchased.
  • You can also special order an alternative version of this towel rail with an external ONE element, which is colour-matched, externally mounted, and easily replaceable. Click here to see what an external ONE element looks like.
• 12-year manufacturer’s warranty (radiator).