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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 →

300mm wide black towel radiators

Compare 300mm-wide black towel radiators with 250mm pipe centres. Choose a height that fits your wall and check the listed heat output for your room.

300mm wide250mm pipe centres5-year radiator warranty
Quick BTU calculatorEstimate your room’s heat requirement here, then compare the radiators below.
**Ultra-slim 300mm matt black heated towel rail radiator**. Specifically engineered for space-conscious layouts, this ultra-narrow horizontal profile radiator


300mm (8)
600mm (1)
800mm (1)
1000mm (1)
1200mm (1)
1400mm (1)
1600mm (1)
1800mm (1)
300/Black
FB-30-100
FB-30-120
FB-30-140
FB-30-160
FB-30-180
FB-30-60
FB-30-80
730 (1)
1017 (1)
1234 (1)
1453 (1)
1638 (1)
Price ▼

8 of 8 radiators · Available items first

Product Compare0
300mm Wide 600mm High Black Towel Radiator Flat 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
300mm Wide 800mm High Black Towel Radiator Flat 300mm Wide 800mm High Black Towel Radiator Flat
300mm Wide 800mm High Black Towel Radiator Flat
This black towel radiator measures 300 mm wide × 800 mm high.Size & constructionWidth300 mmHeight800 mmFinishBlackMaterialSteelDesignFlat / straightTowel slots2Bar configuration3 + 4 + 8 = 15 barsHeat output & fitting dimensionsListed heat output1,017 BTU/h · 297 WPipe centres250 mmWall to p..
£51.99
Ex Tax:£43.33
Question
300mm Wide 1000mm High Black Towel Radiator Flat 300mm Wide 1000mm High Black Towel Radiator Flat
300mm Wide 1000mm High Black Towel Radiator Flat
This black towel radiator measures 300 mm wide × 1,000 mm high.Size & constructionWidth300 mmHeight1,000 mmFinishBlackMaterialSteelDesignFlat / straightTowel slots3Bar configuration4 + 4 + 4 + 7 = 19 barsHeat output & fitting dimensionsListed heat output1,234 BTU/h · 362 WPipe centres250 mmW..
£59.99
Ex Tax:£49.99
Question
300mm Wide 1200mm High Black Towel Radiator Flat 300mm Wide 1200mm High Black Towel Radiator Flat
300mm Wide 1200mm High Black Towel Radiator Flat
This black towel radiator measures 300 mm wide × 1,200 mm high.Size & constructionWidth300 mmHeight1,200 mmFinishBlackMaterialSteelDesignFlat / straightTowel slots3Bar configuration4 + 4 + 5 + 10 = 23 barsHeat output & fitting dimensionsListed heat output1,453 BTU/h · 426 WPipe centres250 mm..
£61.99
Ex Tax:£51.66
Question
300mm Wide 1400mm High Black Towel Radiator Flat 300mm Wide 1400mm High Black Towel Radiator Flat
300mm Wide 1400mm High Black Towel Radiator Flat
This black towel radiator measures 300 mm wide × 1,400 mm high.Size & constructionWidth300 mmHeight1,400 mmFinishBlackMaterialSteelDesignFlat / straightTowel slots3Bar configuration4 + 5 + 6 + 10 = 25 barsHeat output & fitting dimensionsListed heat output1,638 BTU/h · 480 WPipe centres250 mm..
£69.99
Ex Tax:£58.33
Question
300mm Wide 1600mm High Flat Chrome Towel Radiator
300mm Wide 1600mm High Flat Chrome Towel Radiator
This chrome towel radiator measures 300 mm wide × 1,600 mm high.Size & constructionWidth300 mmHeight1,600 mmFinishChromeMaterialSteelDesignFlat / straightTube arrangement4 + 5 + 5 + 5 + 7 = 26 tubesTowel slots4Heat output & fitting dimensionsListed heat output1,822 BTU/h · 534 WPipe centres2..
£61.99
Ex Tax:£51.66
Question
300mm Wide 1800mm High Black Towel Radiator Flat
300mm Wide 1800mm High Black Towel Radiator Flat
This black towel radiator measures 300 mm wide × 1,800 mm high.Size & constructionWidth300 mmHeight1,800 mmFinishBlackMaterialSteelDesignFlat / straightTube arrangement4 + 5 + 5 + 5 + 12 = 31 tubesTowel slots4Heat output & fitting dimensionsListed heat output2,110 BTU/h · 619 WPipe centres25..
£59.99
Ex Tax:£49.99
Question
Black Heated Towel Radiator 300mm Wide Black Heated Towel Radiator 300mm Wide
Out Of Stock
Black Heated Towel Radiator 300mm Wide
This black towel radiator is 300 mm wide, with the available heights and outputs listed below.Size & constructionWidth300 mmHeightChoose an available height; see the table belowFinishBlackTube diameter22 mmHeat output & fitting dimensionsPipe centres250 mmCompare the listed output at your he..
£44.99
Ex Tax:£37.49
Question
Showing 1 to 8 of 8 (1 Pages)

Help choosing your radiator

Useful guides for the sizes and finishes you’re browsing.

Choosing a narrow radiator

Compare sizes in chrome and black for cloakrooms and restricted wall space.

Read guide

300mm or 350mm wide?

Compare connection centres, usable space and both finishes.

Read guide

Choose a useful height

Consider comfortable reach, hanging gaps and access to controls.

Read guide

Compare 300mm-wide black towel radiators with 250mm pipe centres. Choose a height that fits your wall and check the listed heat output for your room.

Listed heights in this collection range from 600mm to 1800mm; check availability on each product. Allow for the valves and installation clearance as well as the radiator body. A bath towel may need folding on a narrow rail; check the rail layout in the product photographs.

Wall brackets, an air vent and a blanking plug are included with towel radiators. Valves are optional. Ask your installer to confirm the connections and any electric or dual-fuel requirements.

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