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 plumber. Here we give you complete expert guidance for this specific heated 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 heated towel rail - in terms of the BTUs heat output it gives.

design & material

• ZIG ZAG makes a striking first impression and brings positive, uplifting energy to any interior.
• Its distinctive shape, everyday functionality and wide choice of colours make it an ideal option for creating a truly individual bathroom design.
• A genuine Terma original, ZIG ZAG features horizontal bars set at an angle, allowing towels to be placed easily over the top bar.
• The chunky square-profile bars pair perfectly with modern, linear bathroom accessories.
• With brackets positioned on the uprights, the main design area remains clean and unobstructed.
• ZIG ZAG works best as a bathroom focal point, adding a bold and contemporary designer touch.
• Made from low carbon mild steel.
• Additionally, we have created a thorough and detailed technical guide on central heating 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 6 different sizes of ZIG ZAG here on the Terma website.
• When viewing the Terma website the heat outputs are only listed in Watts - using the column header stating 75/65/20, multiply the amounts by 3.41 to get the BTUs equivalent.
• If you want to learn more about heat output view our technical guide on heat output.
• We can process a special order for any size you wish to purchase if that size is not shown on our website.

colour & finish

• Painted in Salt n Pepper.
• Finished in a matt, rough texture.
• This is a standard power paint.
• 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.

advice on which valves to purchase for piped installation (central heating)

• This heated towel rail is not supplied with valves, as we have such a vast selection of styles & colours to choose from, we do not include them (like some other retailers) as we cannot make this choice on your behalf.
• However, we make choosing the correct valves very easy for you. With our years of experience, we know once homeowners have chosen their rail, the valve selection process can be a little daunting — and even the plumber won't make the best choice for you in terms of aesthetics. You need to do this yourself, as remember you are left looking at the installation once the plumber has gone — often we have spoken to homeowners who have been disappointed with how the poor valve choice or absence of pipes & covers have let down the look — don't let this be you.
• On the right-hand side of this page we have pre-filtered our vast selection of valves to show you only the optimal valves for this specific model — you'll see two sections:
  • 1. matching/complementary colour valve & pipe sets — exact match (painted same as radiator) or closest complementary match. Complete with pipes and wall covers for a professional finish.
  • 2. standard valve & pipe sets — economical standard valves, not painted to match; closest colour only. Not sold as sets; pipes/covers purchased separately.
• Which orientation of valves do I need: 3-Axis (corner), straight or angled?
  • 1. Pipework through the wall — you'll need 3-axis corner valves. If not yet installed, ask your plumber to bring it through the wall.
  • 2. Pipework through the floor — less common, only in period properties. You'll need straight valves. View valves section for options.
  • Note: Angled valves are not a good match for any heated towel rail (valve head sticks forward), so we do not show angled valves on product pages.
• Additionally, we have created a thorough and detailed technical guide on radiator valves, giving even more information and tips.

what is dual fuel and advice on what accessories to purchase if installing as dual fuel

• Dual Fuel means this towel rail can run on two energy supplies — central heating in the winter, and electric in the summer when the central heating system is typically off, but you can still run this towel rail on its own.
• Buying all components for dual fuel can be complicated, but we have simplified this for you. On the right-hand side you'll see the recommended matching dual fuel accessories pre-filtered for this rail.
• In essence, you need both a heating element and a set of dual fuel valves:
  • heating element: optimal models in colour and style displayed. Purchase correct wattage as listed in data attributes.
  • Note: Only choose the wattage we show — do not increase it, as this will cause faster cycling and reduce lifespan.
  • dual fuel valve: UNICO Integrated Valve with Immersion Tube recommended; no T-piece required. Exact match or closest complementary match.
  • Note: Consider which side your electric supply will be — valve should be opposite for shortest cable run.
  • Note: Standard valves require T-piece, which can look cumbersome.
• Add the rail, heating element, and unico valve to your cart for a complete dual fuel setup.
• Additionally, see our technical guide on dual fuel towel rails for more details.

safety & compliance

• Fully built and tested to EN442 standards and UKCA certified.
• Heat outputs are independently verified by an external testing house to ensure accuracy.

guarantee & warranty

• Supplied with a 12-year manufacturer’s warranty for long-term reassurance.