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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

200mm Wide 600mm High Black Towel Radiator Flat 200mm Wide 600mm High Black Towel Radiator Flat
This black towel radiator measures 200 mm wide × 600 mm high.Size & constructionWidth200 mmHeight600 mmFinishBlackMaterialSteelDesignFlat / straightTowel slots2Bar configuration3 + 4 + 4 = 11 barsHeat output & fitting dimensionsListed heat output553 BTU/h · 162 WPipe centres150 mmWall to pip..
£66.99
Ex Tax:£55.83
Question
200mm Wide 600mm High Flat Chrome Towel Radiator 200mm Wide 600mm High Flat Chrome Towel Radiator
Hot
This chrome towel radiator measures 200 mm wide × 600 mm high.Size & constructionWidth200 mmHeight600 mmFinishChromeMaterialSteelDesignFlat / straightTowel slots2Bar configuration3 + 4 + 4 = 11 barsHeat output & fitting dimensionsListed heat output478 BTU/h · 140 WPipe centres150 mmWall to p..
£51.99
Ex Tax:£43.33
Question
250mm Wide 600mm High Black Towel Radiator Flat Narrow 250mm Wide 600mm High Black Towel Radiator Flat Narrow
-11 %
This matt black towel radiator measures 250 mm wide × 600 mm high.Size & constructionWidth250 mmHeight600 mmFinishMatt blackMaterialMild steelDesignFlat / straightTowel slots2Bar configuration3 + 4 + 4 = 11 barsHeat output & fitting dimensionsListed heat output641 BTU/h · 188 WPipe centres20..
£66.99 £74.99
Ex Tax:£55.83
Question
300mm Wide 400mm High Flat Chrome Towel Radiator 300mm Wide 400mm High Flat Chrome Towel Radiator
-20 %
This chrome towel radiator measures 300 mm wide × 400 mm high.Size & constructionWidth300 mmHeight400 mmFinishChromeMaterialMild steelDesignFlat / straightBar configuration3 + 4 = 7 barsHeat output & fitting dimensionsListed heat output342 BTU/hPipe centres250 mmWall to pipe centre75–95 mmPr..
£51.99 £64.99
Ex Tax:£43.33
Question
300mm Wide 600mm High Black Towel Radiator Flat 300mm Wide 600mm High Black Towel Radiator Flat
This black towel radiator measures 300 mm wide × 600 mm high.Size & constructionWidth300 mmHeight600 mmFinishBlackMaterialSteelDesignFlat / straightTowel slots2Bar configuration3 + 4 + 4 = 11 barsHeat output & fitting dimensionsListed heat output730 BTU/h · 214 WPipe centres250 mmWall to pip..
£49.99
Ex Tax:£41.66
Question
350mm Wide 600mm High Black Towel Radiator Flat Narrow 350mm Wide 600mm High Black Towel Radiator Flat Narrow
-11 %
This matt black towel radiator measures 350 mm wide × 600 mm high.Size & constructionWidth350 mmHeight600 mmFinishMatt blackMaterialMild steelDesignFlat / straightTowel slots2Bar configuration3 + 4 + 4 = 11 barsHeat output & fitting dimensionsListed heat output813 BTU/h · 239 WPipe centres30..
£66.99 £74.99
Ex Tax:£55.83
Question
650mm Wide 1000mm High Black Matt Towel Rail Radiator 650mm Wide 1000mm High Black Matt Towel Rail Radiator
-9 %
This matt black towel radiator measures 650 mm wide × 1,000 mm high.Size & constructionWidth650 mmHeight1,000 mmFinishMatt blackMaterialMild steelTowel slots3Bar configuration4 + 4 + 4 + 7 = 19 barsHeat output & fitting dimensionsListed heat output2,278 BTU/h · 668 WPipe centres600 mmWall to..
£96.99 £106.99
Ex Tax:£80.83
Question
650mm Wide 1200mm High Black Matt Towel Rail Radiator 650mm Wide 1200mm High Black Matt Towel Rail Radiator
-11 %
This matt black towel radiator measures 650 mm wide × 1,200 mm high.Size & constructionWidth650 mmHeight1,200 mmFinishMatt blackMaterialMild steelTowel slots3Bar configuration4 + 4 + 5 + 10 = 23 barsHeat output & fitting dimensionsListed heat output2,394 BTU/h · 702 WPipe centres600 mmWall t..
£101.99 £114.99
Ex Tax:£84.99
Question
650mm Wide 400mm High Black Matt Towel Rail Radiator 650mm Wide 400mm High Black Matt Towel Rail Radiator
This matt black towel radiator measures 650 mm wide × 400 mm high.Size & constructionWidth650 mmHeight400 mmFinishMatt blackMaterialSteelTowel slots1Bar configuration3 + 4 = 7 barsHeat output & fitting dimensionsListed heat output858 BTU/h · 252 WPipe centres600 mmWall to pipe centre75–95 mm..
£79.99
Ex Tax:£66.66
Question
650mm Wide 600mm High Black Matt Towel Rail Radiator 650mm Wide 600mm High Black Matt Towel Rail Radiator
-9 %
This matt black towel radiator measures 650 mm wide × 600 mm high.Size & constructionWidth650 mmHeight600 mmFinishMatt blackMaterialSteelTowel slots2Bar configuration3 + 4 + 4 = 11 barsHeat output & fitting dimensionsListed heat output1,331 BTU/h · 391 WPipe centres600 mmWall to pipe centre7..
£76.99 £84.99
Ex Tax:£64.16
Question
650mm Wide 800mm High Black Matt Towel Rail Radiator 650mm Wide 800mm High Black Matt Towel Rail Radiator
-8 %
This matt black towel radiator measures 650 mm wide × 800 mm high.Size & constructionWidth650 mmHeight800 mmFinishMatt blackMaterialSteelTowel slots2Bar configuration3 + 4 + 8 = 15 barsHeat output & fitting dimensionsListed heat output1,805 BTU/h · 530 WPipe centres600 mmWall to pipe centre7..
£86.99 £94.99
Ex Tax:£72.49
Question
700mm Wide 1000mm High Black Matt Towel Rail Radiator 700mm Wide 1000mm High Black Matt Towel Rail Radiator
-12 %
This matt black towel radiator measures 700 mm wide × 1,000 mm high.Size & constructionWidth700 mmHeight1,000 mmFinishMatt blackMaterialMild steelTowel slots3Bar configuration4 + 4 + 4 + 7 = 19 barsHeat output & fitting dimensionsListed heat output2,427 BTU/h · 712 WPipe centres650 mmWall to..
£89.99 £101.99
Ex Tax:£74.99
Question
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