We use cookies and other similar technologies to improve your browsing experience and the functionality of our site. Privacy Policy.
Menu
Your Cart
Free mainland delivery £200+ · Highlands, islands & NI £9.99
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 →

Special Offers

Product Compare0
250mm Wide 1000mm High Black Towel Radiator Flat Narrow 250mm Wide 1000mm High Black Towel Radiator Flat Narrow
-17 %
250mm Wide 1000mm High Black Towel Radiator Flat Narrow
This black towel radiator measures 250 mm wide × 1,000 mm high.Size & constructionWidth250 mmHeight1,000 mmFinishBlackMaterialMild steelDesignFlat / straightTowel slots3Bar configuration4 + 4 + 4 + 7 = 19 barsHeat output & fitting dimensionsListed heat output1,085 BTU/h · 319 WPipe centres20..
£74.99 £89.99
Ex Tax:£62.49
Question
300mm Wide 800mm High Flat Chrome Towel Radiator 300mm Wide 800mm High Flat Chrome Towel Radiator
-17 %
300mm Wide 800mm High Flat Chrome Towel Radiator
This chrome towel radiator measures 300 mm wide × 800 mm high.Size & constructionWidth300 mmHeight800 mmFinishChromeMaterialSteelDesignFlat / straightTowel slots2Bar configuration3 + 4 + 8 = 15 barsHeat output & fitting dimensionsListed heat output847 BTU/h · 249 WPipe centres250 mmWall to p..
£61.99 £74.99
Ex Tax:£51.66
Question
350mm Wide 1000mm High Black Towel Radiator Flat Narrow Slim 350mm Wide 1000mm High Black Towel Radiator Flat Narrow Slim
-14 %
350mm Wide 1000mm High Black Towel Radiator Flat Narrow Slim
This black towel radiator measures 350 mm wide × 1,000 mm high.Size & constructionWidth350 mmHeight1,000 mmFinishBlackMaterialMild steelDesignFlat / straightTowel slots3Bar configuration4 + 4 + 4 + 7 = 19 barsHeat output & fitting dimensionsListed heat output1,384 BTU/h · 406 WPipe centres30..
£76.99 £89.99
Ex Tax:£64.16
Question
350mm Wide 800mm High Flat Chrome Towel Radiator 350mm Wide 800mm High Flat Chrome Towel Radiator
-17 %
350mm Wide 800mm High Flat Chrome Towel Radiator
This chrome towel radiator measures 350 mm wide × 800 mm high.Size & constructionWidth350 mmHeight800 mmFinishChromeMaterialSteelDesignFlat / straightTowel slots2Bar configuration3 + 4 + 8 = 15 barsHeat output & fitting dimensionsListed heat output950 BTU/h · 278 WPipe centres300 mmWall to p..
£61.99 £74.99
Ex Tax:£51.66
Question
250mm Wide 1200mm High Black Towel Radiator Flat Narrow 250mm Wide 1200mm High Black Towel Radiator Flat Narrow
-6 %
250mm Wide 1200mm High Black Towel Radiator Flat Narrow
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 %
300mm Wide 1000mm High Flat Chrome Towel Radiator
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 1000mm High Flat Chrome Towel Radiator 350mm Wide 1000mm High Flat Chrome Towel Radiator
-11 %
350mm Wide 1000mm High Flat Chrome Towel Radiator
This chrome towel radiator measures 350 mm wide × 1,000 mm high.Size & constructionWidth350 mmHeight1,000 mmFinishChromeMaterialSteelDesignFlat / straightTowel slots3Bar configuration4 + 4 + 4 + 7 = 19 barsHeat output & fitting dimensionsListed heat output1,384 BTU/h · 406 WPipe centres300 m..
£79.99 £89.99
Ex Tax:£66.66
Question
350mm Wide 1200mm High Black Towel Radiator Flat Narrow Slim 350mm Wide 1200mm High Black Towel Radiator Flat Narrow Slim
-11 %
350mm Wide 1200mm High Black Towel Radiator Flat Narrow Slim
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
350mm Wide 1200mm High Flat Chrome Towel Radiator 350mm Wide 1200mm High Flat Chrome Towel Radiator
-10 %
350mm Wide 1200mm High Flat Chrome Towel Radiator
This chrome towel radiator measures 350 mm wide × 1,200 mm high.Size & constructionWidth350 mmHeight1,200 mmFinishChromeMaterialSteelDesignFlat / straightTowel slots3Bar configuration4 + 4 + 5 + 10 = 23 barsHeat output & fitting dimensionsListed heat output1,441 BTU/h · 423 WPipe centres300 ..
£89.99 £99.99
Ex Tax:£74.99
Question
300mm Wide 1400mm High Flat Chrome Towel Radiator 300mm Wide 1400mm High Flat Chrome Towel Radiator
-9 %
300mm Wide 1400mm High Flat Chrome Towel Radiator
This chrome towel radiator measures 300 mm wide × 1,400 mm high.Size & constructionWidth300 mmHeight1,400 mmFinishChromeMaterialMild steelDesignFlat / straightTube diameter22 mmTowel slots3Bar configuration4 + 5 + 6 + 10 = 25 barsHeat output & fitting dimensionsListed heat output1,445 BTU/h ..
£99.99 £109.99
Ex Tax:£83.33
Question
350mm Wide 1400mm High Flat Chrome Towel Radiator 350mm Wide 1400mm High Flat Chrome Towel Radiator
-9 %
350mm Wide 1400mm High Flat Chrome Towel Radiator
This chrome towel radiator measures 350 mm wide × 1,400 mm high.Size & constructionWidth350 mmHeight1,400 mmFinishChromeMaterialSteelDesignFlat / straightTowel slots3Bar configuration4 + 5 + 6 + 10 = 25 barsHeat output & fitting dimensionsListed heat output1,617 BTU/h · 475 WPipe centres300 ..
£99.99 £109.99
Ex Tax:£83.33
Question
Showing 25 to 35 of 35 (3 Pages)
WhatsApp us