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Under 1,000 BTU Radiators

We have 12 radiators with a heat output of under 1,000 BTU/hr in stock from Carisa and Reina, priced from £90.04 to £1,397.23 in sizes from 450 x 240mm to 830 x 600mm. That output suits a cloakroom, en-suite or small box room.

All outputs here are the manufacturers’ certified figures at ΔT50 — a 50°C difference between the water in the radiator and the room — which is the standard for UK central heating and the figure to use when sizing a room. Work out what your room needs with our BTU calculator, then choose the shape and finish you like from the radiators that reach it. Every model is in stock for free delivery to mainland England and Wales.

Under 1,000 BTU Radiators in stock

Compare every under 1,000 BTU radiator in stock

Model Finishes Sizes in this group Heat output (BTU/hr, ΔT50) From
Neva Horizontal Mild Steel Radiator Anthracite, White 550 × 413mm 927 £90.04
Rione Single Mild Steel Radiator Horizontal White 544 × 400mm 889 £115.13
Slimline Vertical Mild Steel Radiator Anthracite, White 470 × 300mm 626 £162.36
Carisa Soho Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 715 × 500mm 873 £269.33
Carisa Ajax Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 450 × 600mm 422 £289.42
Carisa Lara L Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 800 × 485mm 832 £319.92
Carisa Terra L Horizontal Aluminium Designer Radiator Textured Navy Blue, Textured Anthracite, Textured White 800 × 500mm 968 £327.36
Carisa Moon Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 800 × 500mm 835 £329.59
Carisa Moon L Horizontal Aluminium Designer Radiator Textured Anthracite, Textured White 800 × 500mm 835 £340.75
Carisa Coventry Horizontal Flat Steel Designer Radiator Textured White, Textured Black 470 × 470mm 739 £416.64
Carisa Croydon Horizontal Flat Steel Designer Radiator Textured Light Grey, Textured Dark Grey, Textured Black 790 × 290mm 807 £416.64
Carisa Link Horizontal Stainless Steel Designer Radiator Mirror Polished Stainless Steel, Satin Polished Stainless Steel 830 × 240mm 603 £997.70

Questions about under 1,000 BTU radiators

How much heat does a under 1,000 BTU radiator give out?

Between 422 and 968 BTU/hr at ΔT50 across the 12 models on this page. The highest output here is the Carisa Terra L Horizontal Aluminium Designer Radiator at 968 BTU/hr (284 W). All figures are the manufacturers’ certified outputs to EN 442, quoted at ΔT50 — the UK standard for sizing central-heating radiators.

Which under 1,000 BTU radiator is the best value for heat?

On heat per pound it is the Neva Horizontal Mild Steel Radiator: 1,483 BTU/hr for £121.77, about 12 BTU for every £1. The cheapest model on the page starts at £90.04.

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 422 BTU/hr up to a cloakroom, en-suite or small box room at 968 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, 2 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

1,000–2,000 BTU Radiators · Under 1,000 BTU Horizontal Radiators

Back to Radiators by heat output.