1800 x 400mm Vertical Radiators

Looking for a vertical radiator around 1800mm high and 400mm wide? We have 21 vertical radiators in stock in this size from Ethiant and Carisa, priced from £142.20 to £2,101.06 with heat outputs from 2,325 to 5,176 BTU/hr (ΔT50). Actual dimensions in this group run from 1770–1800mm high and 385–425mm wide; the exact size, pipe centres and output of each model are on its product page.

An 1800 x 400 vertical radiator is the classic answer to a wall that is short on width — a hallway, a landing, the end of a kitchen run or the space beside patio doors — and at this size the highest-output models will heat a large living room or an open-plan kitchen-diner. 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.

1800 x 400mm Vertical Radiators in stock

Compare every 1800 x 400mm vertical radiator in stock

Model	Finishes	Sizes in this group	Heat output (BTU/hr, ΔT50)	From
Flat Panel Single Vertical Radiator 1800mm	White	1800 × 420mm	2,705	£142.20
Neva Vertical Mild Steel Radiator	Anthracite, White	1800 × 413mm	3,030–4,576	£166.05
Flat Panel Double Vertical Radiator 1800mm	Black, White	1800 × 420mm	4,168	£201.60
Flat Panel Double Vertical Radiator 1800 Height In Anthracite	Anthracite	1800 × 420mm	4,168	£201.60
Traditional 2 Column Vertical Radiator 1800mm	Black, White	1800 × 425mm	3,806	£201.95
Traditional 3 Column Vertical Radiator 1800mm	Black, White	1800 × 425mm	5,176	£226.80
Slimline Vertical Mild Steel Radiator	Anthracite, White	1770 × 400mm	3,152	£324.72
Carisa Angers Vertical Aluminium Designer Radiator	Textured Anthracite, Textured White	1800 × 395mm	2,611	£309.50
Carisa Chambord Vertical Aluminium Designer Radiator	Textured Anthracite, Textured White	1800 × 395mm	2,638	£309.50
Carisa Angers Double Vertical Aluminium Designer Radiator	Textured Anthracite, Textured White	1800 × 395mm	3,664	£373.49
Carisa Chambord Double Vertical Aluminium Designer Radiator	Textured Anthracite, Textured White	1800 × 395mm	3,664	£373.49
Carisa Mack Vertical Aluminium Designer Radiator	Textured Anthracite, Textured White	1800 × 395mm	3,066	£386.14
Carisa Plata Vertical Aluminium Designer Radiator	Textured Anthracite, Textured White	1800 × 420mm	2,762	£446.40
Carisa Motion Vertical Aluminium Designer Radiator	Textured Anthracite, Textured White	1800 × 390mm	3,105	£505.92
Carisa Sophia Vertical Aluminium Designer Radiator	Textured Black, Textured White	1800 × 415mm	3,014	£534.19
Carisa Plata Double Vertical Aluminium Designer Radiator	Textured Anthracite, Textured White	1800 × 420mm	3,826	£542.38
Carisa Mayra Vertical Steel Designer Radiator	Chrome	1800 × 420mm	5,137	£559.49
Carisa Nixie Vertical Aluminium Designer Radiator	Textured Black, Textured White	1800 × 415mm	3,321	£656.95
Carisa Otto Vertical Aluminium Designer Radiator	Textured Anthracite, Textured White	1800 × 395mm	4,101	£684.48
Carisa Dora Vertical Steel Designer Radiator	Matt Copper, Textured Light Grey	1800 × 390mm	3,314	£773.02
Carisa Mistral Vertical Stainless Steel Designer Radiator	Mirror Polished Stainless Steel, Satin Polished Stainless Steel	1800 × 385mm	2,325	£1,500.65

Questions about 1800 x 400mm vertical radiators

How much heat does a 1800 x 400mm vertical radiator give out?

Between 2,325 and 5,176 BTU/hr at ΔT50 across the 21 models on this page. The highest output here is the Traditional 3 Column Vertical Radiator 1800mm at 5,176 BTU/hr (1,518 W). All figures are the manufacturers’ certified outputs to EN 442, quoted at ΔT50 — the UK standard for sizing central-heating radiators.

Which 1800 x 400mm vertical radiator is the best value for heat?

On heat per pound it is the Traditional 3 Column Vertical Radiator 1800mm: 5,176 BTU/hr for £226.80, about 23 BTU for every £1. The cheapest model on the page starts at £142.20.

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 2,325 BTU/hr up to a large living room or an open-plan kitchen-diner at 5,176 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 17 in white, 12 in anthracite, 5 in black, 1 in chrome, 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

1800 x 300mm Vertical Radiators · 1800 x 350mm Vertical Radiators · 1800 x 450mm Vertical Radiators · 1800 x 500mm Vertical Radiators · 1500 x 400mm Vertical Radiators · 1800mm High Vertical Radiators · 400mm Wide Vertical Radiators · 2,000–3,000 BTU Vertical Radiators · 3,000–4,000 BTU Vertical Radiators · 4,000–5,000 BTU Vertical Radiators · 5,000–6,000 BTU Vertical Radiators

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