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300mm Wide Vertical Radiators

We have 29 vertical radiators 300mm wide in stock from Carisa and Reina, from 470mm to 1800mm high, priced from £114.39 to £1,721.62 with heat outputs from 626 to 3,450 BTU/hr (ΔT50).

Width is what a radiator has to fit; height and panel depth are what give it output. If the wall only allows 300mm, go taller or choose a double-panel model rather than settling for less heat. Every model is in stock for free delivery to mainland England and Wales, and each product page shows the certified heat output for every size so you can match it to your room with our BTU calculator.

300mm Wide Vertical Radiators in stock

Compare every 300mm wide vertical radiator in stock

Model Finishes Sizes in this group Heat output (BTU/hr, ΔT50) From
Neva Vertical Mild Steel Radiator Anthracite, White 1800 × 295mm, 1500 × 295mm 1,803–3,268 £114.39
Slimline Vertical Mild Steel Radiator Anthracite, White 1770 × 300mm, 1470 × 300mm, 1170 × 300mm, 770 × 300mm … 626–2,366 £184.50
Bonera Vertical Mild Steel Radiator Anthracite, White 1800 × 324mm 2,509 £202.95
Picoli Aluminium Radiator Vertical White, Black, Anthracite 1800 × 280mm, 1500 × 280mm 1,563–1,731 £228.78
Piatto Vertical Aluminium Radiator Anthracite, White 1800 × 295mm 2,295–3,190 £243.54
Colona Vertical Radiator RAL Coloured Radiator Ral Colour 1500 × 290mm, 1800 × 290mm 2,147–3,450 £265.36
Resia Vertical Aluminium Radiator Anthracite, White 1800 × 280mm 2,680 £273.06
Loco Vertical Double Aluminium Radiator Anthracite, White 1800 × 280mm 3,077 £290.77
Carisa Step Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1800 × 280mm 2,956 £248.50
Carisa Angers Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1800 × 295mm 1,958 £251.47
Carisa Chambord Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1800 × 295mm 1,978 £251.47
Carisa Nemo Vertical Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 1800 × 280mm 1,828 £258.17
Carisa Monza Vertical Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 1800 × 280mm 2,050 £267.84
Carisa Angers Double Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1800 × 295mm 2,748 £301.32
Carisa Chambord Double Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1800 × 295mm 2,748 £301.32
Carisa Plata Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1800 × 280mm 1,841 £314.71
Carisa Elite Vertical Aluminium Designer Radiator Gloss White 1800 × 295mm 2,126 £322.15
Carisa Dune Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1800 × 280mm 2,607 £330.34
Carisa Mack Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1800 × 315mm 2,452 £346.70
Carisa Monza Double Vertical Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 1800 × 280mm 3,224 £368.28
Carisa Nemo Double Vertical Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 1800 × 280mm 3,224 £368.28
Carisa Plata Double Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1800 × 280mm 2,551 £380.18
Carisa Pipette Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1800 × 280mm 1,830 £434.50
Carisa Croydon Vertical Flat Steel Designer Radiator Textured Light Grey, Textured Dark Grey, Textured Black 1190 × 290mm 1,216 £504.43
Carisa Otto Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1800 × 315mm 3,280 £582.55
Carisa Vesta Vertical Aluminium Designer Radiator Textured Black, Textured White 1800 × 295mm 3,094 £587.02
Carisa Quadro Vertical Aluminium Designer Radiator Textured Anthracite, Textured White 1610 × 280mm 1,821 £628.68
Carisa Dora Vertical Steel Designer Radiator Matt Copper, Textured Light Grey 1800 × 290mm 2,484 £675.55
Carisa Mistral Vertical Stainless Steel Designer Radiator Mirror Polished Stainless Steel, Satin Polished Stainless Steel 1800 × 320mm 1,936 £1,229.83

Questions about 300mm wide vertical radiators

How much heat does a 300mm wide vertical radiator give out?

Between 626 and 3,450 BTU/hr at ΔT50 across the 29 models on this page. The highest output here is the Colona Vertical Radiator RAL Coloured Radiator at 3,450 BTU/hr (1,012 W). All figures are the manufacturers’ certified outputs to EN 442, quoted at ΔT50 — the UK standard for sizing central-heating radiators.

Which 300mm wide vertical radiator is the best value for heat?

On heat per pound it is the Neva Vertical Mild Steel Radiator: 2,164 BTU/hr for £126.94, about 17 BTU for every £1. The cheapest model on the page starts at £114.39.

What size room will it heat?

It depends on the model — the range on this page runs from a cloakroom, en-suite or small box room at 626 BTU/hr up to a typical living room or a large bedroom at 3,450 BTU/hr. A well-insulated modern room needs far less than an older one with single glazing and an outside wall, so use our BTU calculator with your room’s measurements before you choose.

What colours and finishes are available?

In this group we have 25 in white, 23 in anthracite, 7 in black, 1 in raw metal & stainless steel. Colour is chosen as a finish option on the product page.

What else do I need to fit it?

A pair of radiator valves (a thermostatic set is the usual choice) — see our valves and accessories. Wall brackets are supplied with every radiator, and column radiators in this group can be fitted with feet where the wall will not take the full weight. Delivery to mainland England and Wales is free.

Related sizes and ranges

250mm Wide Vertical Radiators · 350mm Wide Vertical Radiators · 1500 x 300mm Vertical Radiators · 1800 x 300mm Vertical Radiators

Back to Radiators by size.