How do I choose the right size and heat output for my room?

Match the radiator's BTU output band to your room's heat loss and the physical space you have. Our range shows outputs from under 1,000 BTU right up to 10,000-25,000 BTU and sizes from compact widths (400-600mm) to large panels (over 2,000mm wide and up to 2,200mm high). a small bathroom will often be met by radiators in the 1,000-2,000 BTU band and a compact 300-600mm height, while a large living room might need something in the 4,000-8,000 BTU band with a wider or taller double-panel model. If you're unsure, look for the BTU band that most closely matches your room calculation and then pick a width/height that fits the wall space.

What's the difference between Compact, Planar, Elite and LST ranges, and which is best for my room?

Compact radiators are efficient, practical panels that suit most rooms; Planar is a sleeker, contemporary range for a modern look; Elite gives a simple, budget-friendly option; and LST (low surface temperature) is designed for safety in healthcare, schools or where you need a cool-to-touch surface. If you want a slim, modern focal point choose Planar (also available in vertical styles), while for a family bathroom or a care setting LST gives peace of mind thanks to its safety focus. Compact or Elite are sensible choices if you want high heat output at a lower cost.

What do Type 11, Type 21 and Type 22 mean, and how do they affect performance?

Those Type numbers describe panel and convector layers: Type 11 is one panel, one convector (slimmer and lower output), Type 21 is two panels, one convector (more heat with modest depth), and Type 22 is two panels, two convectors (higher output and greater depth). So for a tight alcove under a window you might pick a Type 11 to save space, whereas a living room or open plan area often benefits from a Type 22 to deliver more heat without needing excessive width. Triple-panel types are also available when you need very high output from a compact footprint.

Will Stelrad radiators work with my heat pump or other low-temperature systems?

Yes, many Stelrad models are designed to work seamlessly with traditional boilers and modern low-temperature systems such as heat pumps. To compensate for the lower water temperature you'll usually select a larger surface area or a higher output model (a double panel double convector or a taller vertical unit) to achieve the same room temperature. A vertical Planar or a taller Compact K2 is a practical choice if you're switching to a heat pump and want both style and higher output.

Can I get vertical radiators or different finishes to suit my decor?

You can, the range includes both horizontal and vertical orientations, with vertical options available in taller sizes (1,600-2,200mm heights and slim widths such as 400mm), making them ideal for narrow wall spaces or as a design statement. Finishes range from clean, contemporary panels to more traditional profiles like the Deco and Elite styles, so you can pick a minimalist Planar for a modern kitchen or a Compact/Deco unit to match a classic bathroom. a 1,800 x 400mm Planar vertical gives a dramatic, space-saving focal point in a hallway.

Page 15 of 17 Stelrad Radiators

Stelrad Softline Compact K1 450 x 600mm Single Panel Radiator Single Convector White - 80451106

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Stelrad Softline Compact K1 700 x 700mm Single Panel Radiator Single Convector White - 80701107

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Stelrad Softline Compact K1 600 x 1000mm Single Panel Radiator Single Convector White - 80601110

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Stelrad Softline Compact K1 600 x 1600mm Single Panel Radiator Single Convector White - 80601116

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Stelrad Softline Compact K1 600 x 400mm Single Panel Radiator Single Convector White - 80601104

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Stelrad Softline Compact K1 600 x 900mm Single Panel Radiator Single Convector White - 80601109

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Stelrad Softline Compact K1 450 x 600mm Single Panel Radiator Single Convector White - 80451106

Stelrad Softline Compact K1 700 x 700mm Single Panel Radiator Single Convector White - 80701107

Stelrad Softline Compact K1 600 x 1000mm Single Panel Radiator Single Convector White - 80601110

Stelrad Softline Compact K1 600 x 1600mm Single Panel Radiator Single Convector White - 80601116

Stelrad Softline Compact K1 600 x 400mm Single Panel Radiator Single Convector White - 80601104

Stelrad Softline Compact K1 600 x 900mm Single Panel Radiator Single Convector White - 80601109

Stelrad Softline Compact K1 600 x 500mm Single Panel Radiator Single Convector White - 80601105

Stelrad Softline Compact K1 700 x 600mm Single Panel Radiator Single Convector White - 80701106

Stelrad Softline Compact K2 700 x 900mm Double Panel Radiator Double Convector White - 80702209

Stelrad Softline Compact P+ 450 x 1400mm Double Panel Radiator Single Convector White - 80452114

Stelrad Softline Compact K2 450 x 1000mm Double Panel Radiator Double Convector White - 80452210

Stelrad Softline Compact K1 700 x 500mm Single Panel Radiator Single Convector White - 80701105

Stelrad Softline Compact K2 600 x 1100mm Double Panel Radiator Double Convector White - 80602211

Stelrad Softline Compact K2 450 x 500mm Double Panel Radiator Double Convector White - 80452205

Stelrad Softline Compact P+ 600 x 900mm Double Panel Radiator Single Convector White - 80602109

Stelrad Softline Compact K1 450 x 1600mm Single Panel Radiator Single Convector White - 80451116

Stelrad Softline Compact K2 600 x 500mm Double Panel Radiator Double Convector White - 80602205

Stelrad Softline Compact K1 600 x 1100mm Single Panel Radiator Single Convector White - 80601111

Stelrad Softline Compact K1 450 x 1400mm Single Panel Radiator Single Convector White - 80451114

Stelrad Softline Compact K2 700 x 400mm Double Panel Radiator Double Convector White - 80702204

Stelrad Softline Compact K1 600 x 600mm Single Panel Radiator Single Convector White - 80601106

Stelrad Softline Compact K1 450 x 500mm Single Panel Radiator Single Convector White - 80451105

Stelrad Softline Compact K1 700 x 1200mm Single Panel Radiator Single Convector White - 80701112

Stelrad Softline Compact K1 700 x 1100mm Single Panel Radiator Single Convector White - 80701111

Stelrad Softline Compact K1 700 x 1000mm Single Panel Radiator Single Convector White - 80701110

Stelrad Softline Compact P+ 600 x 400mm Double Panel Radiator Single Convector White - 80602104

Stelrad Softline Compact K1 300 x 1000mm Single Panel Radiator Single Convector White - 80301110

Stelrad Softline Compact K1 450 x 900mm Single Panel Radiator Single Convector White - 80451109

Stelrad Softline Compact K1 450 x 400mm Single Panel Radiator Single Convector White - 80451104

Stelrad Softline Compact K1 450 x 2000mm Single Panel Radiator Single Convector White - 80451120

Stelrad Softline Compact K1 450 x 1800mm Single Panel Radiator Single Convector White - 80451118

Stelrad Softline Compact K1 300 x 2000mm Single Panel Radiator Single Convector White - 80301120

Stelrad Softline Compact K1 600 x 700mm Single Panel Radiator Single Convector White - 80601107

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