How do single, double and triple panel radiators differ, and which is best for your room?

Single, double and triple panel radiators refer to the number of steel panels and convector fins they contain: Type 11 is a single panel, Type 21 and 22 are double panel options, and there are triple-panel types too. More panels and convectors produce higher heat output for the same footprint, so a Type 22 (double panel double convector) suits an open-plan living room, while a slim Type 11 single panel is fine for a small bedroom or hallway. Triple-panel units give maximum output but hold more water and are deeper, so they work well where wall space is limited but heat demand is high. If you want a balance of warmth and a low visual profile, most people opt for a Type 21 or 22 in the common 600 mm height.

How do you choose the right radiator size and BTU for your room?

Use the BTU output bands shown, 1,000–1,999 BTU suits small bedrooms, 2,000–3,999 BTU covers average rooms, 4,000–7,999 BTU is for larger living spaces, and 8,000+ BTU for big open-plan areas. Match a radiator's BTU rating to your room's calculated heat loss; many horizontal panels come in popular heights (300–900 mm, with 600 mm most common) and widths from about 400 mm up to 2,000 mm, so you can increase heat by choosing a wider model if wall height is fixed. As a practical example, if you need around 3,000 BTU you might select a 600 x 1200 mm Type 22 double convector from the Compact or Kompact ranges.

What’s the difference between Compact, Planar, Kompact and LST ranges and when should you pick each?

Compact and Kompact ranges are practical, high-output options with convector fins for rapid heat, making them ideal for living rooms and kitchens; Planar models have a sleeker, flatter front for a more contemporary look. LST (low surface temperature) radiators are designed to run cooler on the casing and are suitable where safety matters, such as care homes or rooms used by children and the elderly. Choose Planar if you want minimal, modern styling; pick LST when surface temperature or regulations are a concern; opt for Compact/Kompact when performance is your priority.

Can you get horizontal panel radiators in different colours and will that affect performance?

Yes, many models are offered in standard white and in darker finishes such as black or anthracite, as shown in the Solaro and Planar products in our range. Colour and finish are primarily an aesthetic choice and have negligible effect on a radiator's heat output, so pick a finish that complements your décor, anthracite for a modern kitchen or matte black for a striking living-room statement. If you want understated heating that blends in, choose a white Compact or Planar model in the common 600 mm height.

Are horizontal panel radiators energy efficient and how can you make them work efficiently in your home?

Many models in the range are built for efficiency, convector fins and multiple panels increase heat transfer so rooms warm up faster, which can reduce running time. To be efficient, match the radiator's BTU to the room and pick a design with suitable convector count; a double panel double convector warms a living area quickly, while a single panel suffices for a small bedroom. Also select a modern range like Compact or Kompact that's engineered for rapid heat distribution to get good performance from your system.

Page 3 of 23 Horizontal Panel Radiators

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Page 3 of 23 Horizontal Panel Radiators

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Solaro P+ Type 21 600 x 1400mm Double Panel Radiator Single Convector with Lined Cover - Anthracite

Solaro P+ Type 21 600 x 1600mm Double Panel Radiator Single Convector with Flat Cover - Anthracite

Solaro P+ Type 21 600 x 1600mm Double Panel Radiator Single Convector with Lined Cover - Anthracite

Solaro P+ Type 21 600 x 1800mm Double Panel Radiator Single Convector with Flat Cover - Anthracite

Solaro P+ Type 21 600 x 1800mm Double Panel Radiator Single Convector with Lined Cover - Anthracite

Solaro P+ Type 21 600 x 600mm Double Panel Radiator Single Convector with Flat Cover - Matt Black

Solaro P+ Type 21 600 x 600mm Double Panel Radiator Single Convector with Lined Cover - Matt Black

Solaro P+ Type 21 600 x 800mm Double Panel Radiator Single Convector with Flat Cover - Matt Black

Solaro P+ Type 21 600 x 800mm Double Panel Radiator Single Convector with Lined Cover - Matt Black

Solaro P+ Type 21 600 x 1000mm Double Panel Radiator Single Convector with Flat Cover - Matt Black

Towelrads Metz 429 x 890mm 1500W Smart Electric Panel Radiator - 640082

Solaro P+ Type 21 600 x 1200mm Double Panel Radiator Single Convector with Flat Cover - Matt Black

Solaro P+ Type 21 600 x 1200mm Double Panel Radiator Single Convector with Lined Cover - Matt Black

Solaro P+ Type 21 600 x 1400mm Double Panel Radiator Single Convector with Flat Cover - Matt Black

Solaro P+ Type 21 600 x 1400mm Double Panel Radiator Single Convector with Lined Cover - Matt Black

Solaro P+ Type 21 600 x 1600mm Double Panel Radiator Single Convector with Flat Cover - Matt Black

Solaro P+ Type 21 600 x 1600mm Double Panel Radiator Single Convector with Lined Cover - Matt Black

Solaro P+ Type 21 600 x 1800mm Double Panel Radiator Single Convector with Flat Cover - Matt Black

Solaro P+ Type 21 600 x 1800mm Double Panel Radiator Single Convector with Lined Cover - Matt Black

Solaro K2 Type 22 600 x 600mm Double Panel Radiator Double Convector with Flat Cover - Anthracite

Solaro K2 Type 22 600 x 600mm Double Panel Radiator Double Convector with Lined Cover - Anthracite

Solaro K2 Type 22 600 x 800mm Double Panel Radiator Double Convector with Flat Cover - Anthracite

Solaro K2 Type 22 600 x 800mm Double Panel Radiator Double Convector with Lined Cover - Anthracite

Solaro K2 Type 22 600 x 1000mm Double Panel Radiator Double Convector with Flat Cover - Anthracite

Solaro K2 Type 22 600 x 1000mm Double Panel Radiator Double Convector with Lined Cover - Anthracite

Solaro K2 Type 22 600 x 1200mm Double Panel Radiator Double Convector with Flat Cover - Anthracite

Solaro K2 Type 22 600 x 1200mm Double Panel Radiator Double Convector with Lined Cover - Anthracite

Solaro K2 Type 22 600 x 1400mm Double Panel Radiator Double Convector with Flat Cover - Anthracite

Solaro K2 Type 22 600 x 1400mm Double Panel Radiator Double Convector with Lined Cover - Anthracite

Solaro K2 Type 22 600 x 1600mm Double Panel Radiator Double Convector with Flat Cover - Anthracite

Solaro K2 Type 22 600 x 1600mm Double Panel Radiator Double Convector with Lined Cover - Anthracite

Solaro K2 Type 22 600 x 1800mm Double Panel Radiator Double Convector with Flat Cover - Anthracite

Solaro K2 Type 22 600 x 1800mm Double Panel Radiator Double Convector with Lined Cover - Anthracite

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