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Plan your space

Quick BTU calculator

Enter your room measurements for an estimated heating requirement. Compare radiators without leaving this page.

Starting assumptions: two adjacent outside walls, 1.5m² low-E glazing, insulated cavity walls, ground floor and insulated loft. Check these against your room.

Check or change room assumptions

U-values describe heat passing through a surface; use known building values where available. −3°C outdoors, 10°C below and the default U-values are preliminary assumptions, not a location survey. Unheated lofts use the outdoor temperature; heated floors/ceilings use U 1.36/1.62 and the adjacent-room temperature.

Preliminary rectangular-room estimate, not an installer’s heat-loss survey. It excludes detailed thermal bridging, ground/loft modelling and ventilation-system design. Confirm the room heat loss and radiator output at your heating-system temperatures before ordering.

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Turkish Zone

250mm Wide 1200mm High Black Towel Radiator Flat Narrow 250mm Wide 1200mm High Black Towel Radiator Flat Narrow
-6 %
This black towel radiator measures 250 mm wide × 1,200 mm high.Size & constructionWidth250 mmHeight1,200 mmFinishBlackMaterialMild steelDesignFlat / straightTowel slots3Bar configuration4 + 4 + 5 + 10 = 23 barsHeat output & fitting dimensionsListed heat output1,308 BTU/h · 384 WPipe centres2..
£76.99 £81.99
Ex Tax:£64.16
Question
300mm Wide 1000mm High Flat Chrome Towel Radiator 300mm Wide 1000mm High Flat Chrome Towel Radiator
-13 %
This chrome towel radiator measures 300 mm wide × 1,000 mm high.Size & constructionWidth300 mmHeight1,000 mmFinishChromeMaterialMild steelDesignFlat / straightTowel slots3Bar configuration4 + 4 + 4 + 7 = 19 barsHeat output & fitting dimensionsListed heat output945 BTU/h · 278 WPipe centres25..
£77.99 £89.99
Ex Tax:£64.99
Question
350mm Wide 1200mm High Black Towel Radiator Flat Narrow Slim 350mm Wide 1200mm High Black Towel Radiator Flat Narrow Slim
-11 %
This black towel radiator measures 350 mm wide × 1,200 mm high.Size & constructionWidth350 mmHeight1,200 mmFinishBlackMaterialMild steelDesignFlat / straightTowel slots3Bar configuration4 + 4 + 5 + 10 = 23 barsHeat output & fitting dimensionsListed heat output1,669 BTU/h · 490 WPipe centres3..
£84.99 £94.99
Ex Tax:£70.83
Question
400mm Wide 1200mm High Black Towel Radiator Flat 400mm Wide 1200mm High Black Towel Radiator Flat
This matt black towel radiator measures 400 mm wide × 1,200 mm high.Size & constructionWidth400 mmHeight1,200 mmFinishMatt blackMaterialSteelDesignFlat / straightTowel slots3Bar configuration4 + 4 + 5 + 10 = 23 barsHeat output & fitting dimensionsListed heat output1,849 BTU/h · 543 WPipe cen..
£61.99
Ex Tax:£51.66
Question
200mm Wide 1400mm High Black Towel Radiator Flat 200mm Wide 1400mm High Black Towel Radiator Flat
This black towel radiator measures 200 mm wide × 1,400 mm high.Size & constructionWidth200 mmHeight1,400 mmFinishBlackMaterialSteelDesignFlat / straightTowel slots3Bar configuration4 + 5 + 6 + 10 = 25 barsHeat output & fitting dimensionsListed heat output1,280 BTU/h · 375 WPipe centres150 mm..
£94.99
Ex Tax:£79.16
Question
200mm Wide 1400mm High Flat Chrome Towel Radiator 200mm Wide 1400mm High Flat Chrome Towel Radiator
Hot
This chrome towel radiator measures 200 mm wide × 1,400 mm high.Size & constructionWidth200 mmHeight1,400 mmFinishChromeMaterialSteelDesignFlat / straightTowel slots25Bar configuration4 + 5 + 6 + 10 = 25 barsHeat output & fitting dimensionsListed heat output1,105 BTU/h · 324 WPipe centres150..
£79.99
Ex Tax:£66.66
Question
250mm Wide 1400mm High Black Towel Radiator Flat Narrow 250mm Wide 1400mm High Black Towel Radiator Flat Narrow
This black towel radiator measures 250 mm wide × 1,400 mm high.Size & constructionWidth250 mmHeight1,400 mmFinishBlackMaterialMild steelDesignFlat / straightTowel slots3Bar configuration4 + 5 + 6 + 10 = 25 barsHeat output & fitting dimensionsListed heat output1,477 BTU/h · 433 WPipe centres2..
£94.99
Ex Tax:£79.16
Question
350mm Wide 1400mm High Black Towel Radiator Flat Narrow Slim 350mm Wide 1400mm High Black Towel Radiator Flat Narrow Slim
This black towel radiator measures 350 mm wide × 1,400 mm high.Size & constructionWidth350 mmHeight1,400 mmFinishBlackMaterialMild steelDesignFlat / straightTowel slots3Bar configuration4 + 5 + 6 + 10 = 25 barsHeat output & fitting dimensionsListed heat output1,869 BTU/h · 548 WPipe centres3..
£94.99
Ex Tax:£79.16
Question
400mm Wide 1400mm High Black Towel Radiator Flat 400mm Wide 1400mm High Black Towel Radiator Flat
This matt black towel radiator measures 400 mm wide × 1,400 mm high.Size & constructionWidth400 mmHeight1,400 mmFinishMatt blackMaterialSteelDesignFlat / straightTowel slots3Bar configuration4 + 5 + 6 + 10 = 25 barsHeat output & fitting dimensionsListed heat output2,172 BTU/h · 638 WPipe cen..
£69.99
Ex Tax:£58.33
Question
550mm Wide 400mm High Matt Black Flat Towel Radiator 550mm Wide 400mm High Matt Black Flat Towel Radiator
Keep useful towel space below a window or on a low wall with this compact-height black rail. Its 550mm width gives a broader hanging area while the 400mm body keeps the overall profile low.Size & constructionWidth550 mmHeight400 mmFinishMatt blackMaterialSteelDesignFlat / straightBar configurati..
£62.39
Ex Tax:£51.99
Question
550mm Wide 600mm High Matt Black Flat Towel Radiator 550mm Wide 600mm High Matt Black Flat Towel Radiator
Bring a coordinated black finish to a compact bathroom with a balanced 550 × 600mm towel rail. The flat ladder layout offers convenient space for everyday towels without a tall wall installation.Size & constructionWidth550 mmHeight600 mmFinishMatt blackMaterialSteelDesignFlat / straightBar confi..
£68.39
Ex Tax:£56.99
Question
550mm Wide 800mm High Matt Black Flat Towel Radiator 550mm Wide 800mm High Matt Black Flat Towel Radiator
Add practical towel storage at a comfortable everyday height with this 550 × 800mm black ladder radiator. Its flat steel rails suit a bathroom refresh where both towel space and a clean outline matter.Size & constructionWidth550 mmHeight800 mmFinishMatt blackMaterialSteelDesignFlat / straightBar..
£71.99
Ex Tax:£59.99
Question
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