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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.

Need help choosing? Contact us →

Turkish Zone

700mm Wide 1200mm High Black Matt Towel Rail Radiator 700mm Wide 1200mm High Black Matt Towel Rail Radiator
-5 %
This matt black towel radiator measures 700 mm wide × 1,200 mm high.Size & constructionWidth700 mmHeight1,200 mmFinishMatt blackMaterialMild steelTowel slots3Bar configuration4 + 4 + 5 + 10 = 23 barsHeat output & fitting dimensionsListed heat output2,932 BTU/h · 860 WPipe centres650 mmWall t..
£94.99 £99.99
Ex Tax:£79.16
Question
700mm Wide 400mm High Black Matt Towel Rail Radiator 700mm Wide 400mm High Black Matt Towel Rail Radiator
-26 %
This matt black towel radiator measures 700 mm wide × 400 mm high.Size & constructionWidth700 mmHeight400 mmFinishMatt blackMaterialMild steelTowel slots1Bar configuration3 + 4 = 7 barsHeat output & fitting dimensionsListed heat output1,302 BTU/h · 382 WPipe centres650 mmWall to pipe centre7..
£51.99 £69.99
Ex Tax:£43.33
Question
700mm Wide 600mm High Black Matt Towel Rail Radiator 700mm Wide 600mm High Black Matt Towel Rail Radiator
-13 %
This matt black towel radiator measures 700 mm wide × 600 mm high.Size & constructionWidth700 mmHeight600 mmFinishMatt blackMaterialSteelTowel slots2Bar configuration3 + 4 + 4 = 11 barsHeat output & fitting dimensionsListed heat output1,418 BTU/h · 417 WPipe centres650 mmWall to pipe centre7..
£69.99 £79.99
Ex Tax:£58.33
Question
700mm Wide 800mm High Black Matt Towel Rail Radiator 700mm Wide 800mm High Black Matt Towel Rail Radiator
-4 %
This matt black towel radiator measures 700 mm wide × 800 mm high.Size & constructionWidth700 mmHeight800 mmFinishMatt blackMaterialSteelTowel slots2Bar configuration3 + 4 + 8 = 15 barsHeat output & fitting dimensionsListed heat output1,923 BTU/h · 564 WPipe centres650 mmWall to pipe centre7..
£76.99 £79.99
Ex Tax:£64.16
Question
750mm Wide 1000mm High Black Matt Towel Rail Radiator 750mm Wide 1000mm High Black Matt Towel Rail Radiator
-10 %
This matt black towel radiator measures 750 mm wide × 1,000 mm high.Size & constructionWidth750 mmHeight1,000 mmFinishMatt blackMaterialMild steelTowel slots3Bar configuration4 + 4 + 4 + 7 = 19 barsHeat output & fitting dimensionsListed heat output2,576 BTU/h · 756 WPipe centres700 mmWall to..
£104.99 £116.99
Ex Tax:£87.49
Question
750mm Wide 1200mm High Black Matt Towel Rail Radiator 750mm Wide 1200mm High Black Matt Towel Rail Radiator
-4 %
This matt black towel radiator measures 750 mm wide × 1,200 mm high.Size & constructionWidth750 mmHeight1,200 mmFinishMatt blackMaterialMild steelTowel slots3Bar configuration4 + 4 + 5 + 10 = 23 barsHeat output & fitting dimensionsListed heat output3,113 BTU/h · 912 WPipe centres700 mmWall t..
£109.99 £114.99
Ex Tax:£91.66
Question
750mm Wide 400mm High Black Matt Towel Rail Radiator 750mm Wide 400mm High Black Matt Towel Rail Radiator
-9 %
This matt black towel radiator measures 750 mm wide × 400 mm high.Size & constructionWidth750 mmHeight400 mmFinishMatt blackMaterialMild steelTowel slots1Bar configuration3 + 4 = 7 barsHeat output & fitting dimensionsListed heat output968 BTU/h · 283 WPipe centres700 mmWall to pipe centre75–..
£76.99 £84.99
Ex Tax:£64.16
Question
750mm Wide 600mm High Black Matt Towel Rail Radiator 750mm Wide 600mm High Black Matt Towel Rail Radiator
-5 %
This matt black towel radiator measures 750 mm wide × 600 mm high.Size & constructionWidth750 mmHeight600 mmFinishMatt blackMaterialMild steelTowel slots2Bar configuration3 + 4 + 4 = 11 barsHeat output & fitting dimensionsListed heat output1,504 BTU/h · 441 WPipe centres700 mmWall to pipe ce..
£89.99 £94.99
Ex Tax:£74.99
Question
750mm Wide 800mm High Black Matt Towel Rail Radiator 750mm Wide 800mm High Black Matt Towel Rail Radiator
--3 %
This matt black towel radiator measures 750 mm wide × 800 mm high.Size & constructionWidth750 mmHeight800 mmFinishMatt blackMaterialMild steelTowel slots2Bar configuration3 + 4 + 8 = 15 barsHeat output & fitting dimensionsListed heat output2,040 BTU/h · 599 WPipe centres700 mmWall to pipe ce..
£94.99 £91.99
Ex Tax:£79.16
Question
800mm Wide 400mm High Black Matt Towel Rail Radiator 800mm Wide 400mm High Black Matt Towel Rail Radiator
-2 %
This matt black towel radiator measures 800 mm wide × 400 mm high.Size & constructionWidth800 mmHeight400 mmFinishMatt blackMaterialMild steelTowel slots1Bar configuration3 + 4 = 7 barsHeat output & fitting dimensionsListed heat output1,023 BTU/h · 300 WPipe centres750 mmWall to pipe centre7..
£84.99 £86.99
Ex Tax:£70.83
Question
800mm Wide 600mm High Black Matt Towel Rail Radiator 800mm Wide 600mm High Black Matt Towel Rail Radiator
-3 %
This matt black towel radiator measures 800 mm wide × 600 mm high.Size & constructionWidth800 mmHeight600 mmFinishMatt blackMaterialMild steelTowel slots2Bar configuration3 + 4 + 4 = 11 barsHeat output & fitting dimensionsListed heat output1,591 BTU/h · 467 WPipe centres750 mmWall to pipe ce..
£91.99 £94.99
Ex Tax:£76.66
Question
Black towel rail wall-mounting bracket kit
Replace missing or worn towel rail supports with this black wall-mounting kit for compatible flat or curved ladder rails.Product detailsBlack finishFour-bracket setSuitable for compatible flat and curved ladder towel railsCheck before orderingCompare the bracket dimensions and rail spacing with your..
£10.79
Ex Tax:£8.99
Question
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