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800mm Wide Horizontal Radiators

We have 52 horizontal radiators 800mm wide in stock from Carisa, Ethiant and Reina, from 300mm to 800mm high, priced from £100.80 to £2,182.15 with heat outputs from 1,619 to 6,796 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 800mm, 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.

800mm Wide Horizontal Radiators in stock

Compare every 800mm wide horizontal radiator in stock

Model Finishes Sizes in this group Heat output (BTU/hr, ΔT50) From
Flat Panel Single Horizontal Radiator 600 Height White 600 × 770mm 1,747 £100.80
Nevah Mild Steel Radiator Horizontal Anthracite, White 590 × 800mm 1,945–3,034 £137.27
Traditional 2 Column Horizontal Radiators 500 Height White 500 × 830mm 2,252 £141.08
Ethiant Horizontal Single Flat Panel Radiator 600 Anthracite 600 × 770mm 2,827 £142.20
Traditional 3 Column Horizontal Radiators 300 Height White 300 × 830mm 1,888 £143.52
Neva Horizontal Mild Steel Radiator Anthracite, White 550 × 826mm 1,862–2,978 £144.65
Oval Tubed Panel Double Horizontal Radiator 600 Height In White White 600 × 780mm 3,118 £149.40
Traditional 2 Column Horizontal Radiator 600mm Height Black, White 600 × 830mm 2,657 £152.22
Rione Single Mild Steel Radiator Horizontal White 544 × 800mm 1,778 £149.08
Traditional 4 Column Horizontal Radiators 300 Height White 300 × 830mm 2,435 £153
Traditional 3 Column Horizontal Radiators 400 Height White 400 × 830mm 2,517 £164.32
Oval Tubed Panel Double Horizontal Radiator 600 Height In Anthracite Anthracite 600 × 780mm 3,118 £166
Odet Mild Steel Radiator White, Anthracite 500 × 820mm 5,118 £183.02
Traditional 3 Column Horizontal Radiators 500 Height White 500 × 830mm 3,104 £201.76
Traditional 3 Column Horizontal Radiator 600mm Height Black, White 600 × 830mm 3,653 £220.48
Traditional 4 Column Horizontal Radiators 400 Height White 400 × 830mm 3,166 £231
Traditional 3 Column Horizontal Radiators 750 Height White 750 × 830mm 4,566 £232.20
Rione Double Mild Steel Radiator Horizontal White 544 × 800mm 2,703 £230.26
Piatto Horizontal Aluminium Radiator Anthracite, White 600 × 820mm 2,105–3,010 £242.06
Slimline Horizontal Mild Steel Radiator Anthracite, White 600 × 800mm 2,137 £243.54
Traditional 4 Column Horizontal Radiators 500 Height White 500 × 830mm 3,957 £251.68
Rienza Aluminium Radiator Horizontal Anthracite, White 565 × 800mm 2,092 £252.40
Traditional 4 Column Horizontal Radiators 600 Height White 600 × 830mm 4,688 £272.48
Traditional 6 Column Horizontal Radiators 300 Height White 300 × 830mm 3,587 £279.30
Carisa Nemo XL Horizontal Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 565 × 800mm 1,619 £247.01
Traditional 4 Column Horizontal Radiators 750 Height White 750 × 830mm 5,860 £303.68
Traditional 6 Column Horizontal Radiators 400 Height White 400 × 830mm 4,783 £307.84
Carisa Monza XL Horizontal Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 565 × 800mm 1,822 £256.68
Traditional 6 Column Horizontal Radiators 500 Height White 500 × 830mm 5,765 £339.04
Carisa Step Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 600 × 850mm 3,442 £295.37
Carisa Nemo Horizontal Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 600 × 850mm 2,315 £301.32
Traditional 6 Column Horizontal Radiators 600 Height White 600 × 830mm 6,796 £372.32
Carisa Monza Horizontal Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 600 × 850mm 2,386 £313.22
Resia Horizontal Aluminium Radiator Anthracite, White 600 × 850mm 2,860 £374.90
Carisa Dune Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 600 × 850mm 3,035 £347.45
Carisa Mack Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 600 × 795mm 2,379 £348.94
Carisa Nemo XL Double Horizontal Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 565 × 800mm 2,865 £359.35
Carisa Monza XL Double Horizontal Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 565 × 800mm 2,865 £359.35
Carisa Tallis XL Horizontal Aluminium Designer Radiator Textured Navy Blue, Textured Anthracite, Textured White 590 × 800mm 1,875 £361.58
Carisa Plata Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 600 × 840mm 2,359 £425.57
Carisa Tallis Double XL Horizontal Aluminium Designer Radiator Textured Navy Blue, Textured Anthracite, Textured White 590 × 800mm 2,999 £427.06
Carisa Monza Double Horizontal Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 600 × 850mm 3,399 £452.35
Carisa Nemo Double Horizontal Aluminium Designer Radiator Textured Black, Textured Anthracite, Textured White 600 × 850mm 3,399 £452.35
Carisa Zara Horizontal Steel Designer Radiator Chrome 550 × 830mm 1,900 £465
Carisa Pipette Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 600 × 850mm 2,141 £468.72
Carisa Plata Double Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 600 × 840mm 3,263 £516.34
Carisa Nixie Horizontal Aluminium Designer Radiator Textured Black, Textured White 600 × 835mm 2,578 £566.93
Carisa Otto Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 600 × 795mm 3,182 £651
Carisa Sophia Horizontal Aluminium Designer Radiator Textured Black, Textured White 600 × 835mm 2,340 £653.98
Carisa Sarp Horizontal Aluminium Designer Radiator Mirror Polished Stainless Steel, Satin Polished Stainless Steel 600 × 810mm 1,831 £862.30
Carisa Mistral F Horizontal Stainless Steel Designer Radiator Mirror Polished Stainless Steel, Satin Polished Stainless Steel 760 × 775mm 2,114 £1,423.27
Carisa Keops Horizontal Stainless Steel Designer Radiator Mirror Polished Stainless Steel, Satin Polished Stainless Steel 800 × 800mm 1,732 £1,558.68

Questions about 800mm wide horizontal radiators

How much heat does a 800mm wide horizontal radiator give out?

Between 1,619 and 6,796 BTU/hr at ΔT50 across the 52 models on this page. The highest output here is the Traditional 6 Column Horizontal Radiators 600 Height at 6,796 BTU/hr (1,993 W). All figures are the manufacturers’ certified outputs to EN 442, quoted at ΔT50 — the UK standard for sizing central-heating radiators.

Which 800mm wide horizontal radiator is the best value for heat?

On heat per pound it is the Odet Mild Steel Radiator: 5,118 BTU/hr for £183.02, about 28 BTU for every £1. The cheapest model on the page starts at £100.80.

What size room will it heat?

It depends on the model — the range on this page runs from a bedroom, home office or small kitchen at 1,619 BTU/hr up to a large living room or an open-plan kitchen-diner at 6,796 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 46 in white, 26 in anthracite, 12 in black, 3 in raw metal & stainless steel, 1 in chrome. 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

700mm Wide Horizontal Radiators · 900mm Wide Horizontal Radiators · 300 x 800mm Horizontal Radiators · 400 x 800mm Horizontal Radiators · 500 x 800mm Horizontal Radiators · 600 x 800mm Horizontal Radiators · 750 x 800mm Horizontal Radiators

Back to Radiators by size.