450mm Wide Horizontal Radiators

We have 10 horizontal radiators 450mm wide in stock from Carisa and Reina, from 470mm to 600mm high, priced from £150.55 to £416.64 with heat outputs from 739 to 3,412 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 450mm, 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.

450mm Wide Horizontal Radiators in stock

Compare every 450mm wide horizontal radiator in stock

Model	Finishes	Sizes in this group	Heat output (BTU/hr, ΔT50)	From
Piatto Horizontal Aluminium Radiator	Anthracite, White	600 × 445mm	1,148–1,642	£150.55
Resia Horizontal Aluminium Radiator	Anthracite, White	600 × 470mm	1,605	£220.66
Carisa Nemo Horizontal Aluminium Designer Radiator	Textured Black, Textured Anthracite, Textured White	600 × 470mm	1,286	£213.53
Carisa Monza Horizontal Aluminium Designer Radiator	Textured Black, Textured Anthracite, Textured White	600 × 470mm	1,326	£222.46
Carisa Step Horizontal Aluminium Designer Radiator	Textured Anthracite, Textured White	600 × 470mm	1,912	£223.94
Aron Aluminium Radiator	Black, White	570 × 450mm	3,412	£302.58
Carisa Dune Horizontal Aluminium Designer Radiator	Textured Anthracite, Textured White	600 × 470mm	1,686	£260.40
Carisa Monza Double Horizontal Aluminium Designer Radiator	Textured Black, Textured Anthracite, Textured White	600 × 470mm	1,889	£284.21
Carisa Nemo Double Horizontal Aluminium Designer Radiator	Textured Black, Textured Anthracite, Textured White	600 × 470mm	1,889	£284.21
Carisa Coventry Horizontal Flat Steel Designer Radiator	Textured White, Textured Black	470 × 470mm	739	£416.64

Questions about 450mm wide horizontal radiators

How much heat does a 450mm wide horizontal radiator give out?

Between 739 and 3,412 BTU/hr at ΔT50 across the 10 models on this page. The highest output here is the Aron Aluminium Radiator at 3,412 BTU/hr (1,000 W). All figures are the manufacturers’ certified outputs to EN 442, quoted at ΔT50 — the UK standard for sizing central-heating radiators.

Which 450mm wide horizontal radiator is the best value for heat?

On heat per pound it is the Aron Aluminium Radiator: 3,412 BTU/hr for £302.58, about 11 BTU for every £1. The cheapest model on the page starts at £150.55.

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 739 BTU/hr up to a typical living room or a large bedroom at 3,412 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 10 in white, 8 in anthracite, 6 in black. 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. Delivery to mainland England and Wales is free.

Related sizes and ranges

400mm Wide Horizontal Radiators · 500mm Wide Horizontal Radiators · 600 x 450mm Horizontal Radiators

Back to Radiators by size.