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

• QUADRUS SLIM 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 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 4 different sizes of QUADRUS SLIM 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 Pastel Blue.
• Finished in a silk, smooth texture.
• This is a standard powder paint.
• 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 a vast selection of styles & colours. We do not include them as we cannot make this choice on your behalf.
• However, we make choosing the correct valves very easy for you. With our experience, we know the valve selection process can be daunting — and even the plumber may not choose the best aesthetic option for you.
• On the right-hand side of this page we have pre-filtered our selection to show only the optimal valves for this specific model. You'll see two sections of valves:
  • 1. Matching/complementary colour valve & pipe sets — these could be an exact match (painted using the same paint as the radiators) or the closest complementary match. These valves come complete with pipes and wall covers for a professional finish.
  • 2. Standard valve & pipe sets — more economical valves not painted to match the radiators. Closest colour only is shown. These are not sold as sets; pipes/covers must be purchased separately.
• Which orientation of valves do I need: 3-Axis (corner), straight or angled?
  • 1. Your central heating pipework comes through the wall — you'll need 3-axis corner valves.
  • 2. Your central heating pipework comes through the floor — you'll need straight valves. Straight valves are less common and must be selected individually.
  • Note: Angled valves are generally not suitable as they protrude forward at the bottom.
• Additionally, we have a detailed technical guide on radiator valves, giving 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 winter and electric in summer, allowing standalone use.
• Note: This specific model (with central 50mm connections) is not available as electric — it cannot be used as dual fuel.
• Additionally, we have a thorough technical guide on dual fuel towel rails, giving more information if using a standard T-piece setup.

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.