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900 x 500mm Horizontal Radiators
Looking for a horizontal radiator around 900mm high and 500mm wide? We have 3 horizontal radiators in stock in this size from Carisa, priced from £357.12 to £510.38 with heat outputs from 1,394 to 1,434 BTU/hr (ΔT50). Actual dimensions in this group run from 852–940mm high and 490–500mm wide; the exact size, pipe centres and output of each model are on its product page.
A 900 x 500 horizontal radiator is the size most UK homes were built around, so it usually replaces an existing radiator without moving the pipework, and the highest-output models here will heat a cloakroom, en-suite or small box room. 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.
900 x 500mm Horizontal Radiators in stock
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Sale!
Carisa Unico Horizontal Aluminium Designer Radiator
Price range: £357.12 through £393.58 Select options This product has multiple variants. The options may be chosen on the product page -
Sale!
Carisa Terra Horizontal Aluminium Designer Radiator
Price range: £374.23 through £412.18 Select options This product has multiple variants. The options may be chosen on the product page -
Sale!
Carisa Rex Horizontal Flat Steel Designer Radiator
Original price was: £823.20.£510.38Current price is: £510.38. Select options This product has multiple variants. The options may be chosen on the product page
Compare every 900 x 500mm horizontal radiator in stock
| Model | Finishes | Sizes in this group | Heat output (BTU/hr, ΔT50) | From |
|---|---|---|---|---|
| Carisa Unico Horizontal Aluminium Designer Radiator | Textured Navy Blue, Textured Anthracite, Textured White | 852 × 500mm | 1,434 | £357.12 |
| Carisa Terra Horizontal Aluminium Designer Radiator | Textured Navy Blue, Textured Anthracite, Textured White | 852 × 500mm | 1,434 | £374.23 |
| Carisa Rex Horizontal Flat Steel Designer Radiator | Textured Anthracite, Textured White | 940 × 490mm | 1,394 | £510.38 |
Questions about 900 x 500mm horizontal radiators
How much heat does a 900 x 500mm horizontal radiator give out?
Between 1,394 and 1,434 BTU/hr at ΔT50 across the 3 models on this page. The highest output here is the Carisa Unico Horizontal Aluminium Designer Radiator at 1,434 BTU/hr (421 W). All figures are the manufacturers’ certified outputs to EN 442, quoted at ΔT50 — the UK standard for sizing central-heating radiators.
Which 900 x 500mm horizontal radiator is the best value for heat?
On heat per pound it is the Carisa Unico Horizontal Aluminium Designer Radiator: 1,434 BTU/hr for £357.12, about 4 BTU for every £1. The cheapest model on the page starts at £357.12.
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 1,394 BTU/hr up to a cloakroom, en-suite or small box room at 1,434 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 3 in anthracite, 3 in white. 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
Back to Radiators by size.