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Horizontal Radiators

Horizontal radiators are the go-to for reliable, even warmth. They sit neatly under windows to counter cooler air and keep living spaces comfortable day to day. To choose the right model, start with your BTU requirement so the output matches your room size. Single panels suit smaller rooms, while double panels boost heat where you need a bit more.

Measure width, height and projection so your designer horizontal radiator fits your space and furniture. Replacing an old unit? Check pipe centres to help reduce extra plumbing. Low-level options work well under bay windows or long runs of glazing, while compact lengths are ideal for utility rooms, hallways and snug layouts.

From flat panels to oval tubes and classic horizontal column designs, there’s a style to suit every interior. Keep it clean with white, go modern with anthracite or black, or choose a raw metal finish for character. Some ranges also include electric models if you’re not on central heating. Finish the look with co-ordinated valves and accessories for a polished result.

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123

£499.95

Finance from £18.74/month

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1213

£649.95

Finance from £24.37/month

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123

£679.95

Finance from £25.49/month

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Reina Flat Horizontal Double Panel Designer Radiator - 600 x 440mm - Clay Brown Large Image

£299.95

Finance from £11.24/month

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Paladin Sloane 450mm High 7 Section Electric Cast Iron Radiator with 1200w Heating Element Large Ima

£886.08

Finance from £33.22/month

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Available

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Paladin Piccadilly Cast Iron Radiator (460mm High) Large Image

£355.17

Finance from £13.31/month

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Paladin Sloane Cast Iron Radiator (450mm High) Large Image

£343.73

Finance from £12.89/month

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123

£649.95

Finance from £24.37/month

The stock status is Available

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123

£499.95

Finance from £18.74/month

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123

£549.95

Finance from £20.62/month

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Available

213

£335.95

Finance from £12.59/month

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Available

Reina Flat Horizontal Single Panel Designer Radiator - 600 x 440mm - Flame Red Large Image

£249.95

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Available

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Paladin - Oxford 3 Column Radiator -765mm Height - Various Width and Colour Options Large Image

£458.31

Finance from £17.18/month

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Available

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Paladin Piccadilly Cast Iron Radiator (760mm High) Large Image

£458.31

Finance from £17.18/month

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Paladin Sloane Cast Iron Radiator (750mm High) Large Image

£435.41

Finance from £16.32/month

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213

£1,199.95

Finance from £44.99/month

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213

£1,039.95

Finance from £38.99/month

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123

£869.95

Finance from £32.62/month

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213

£869.95

Finance from £32.62/month

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213

£1,109.95

Finance from £41.62/month

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£1,399.95

Finance from £52.49/month

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213

£1,179.95

Finance from £44.24/month

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213

£1,179.95

Finance from £44.24/month

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213

£1,349.95

Finance from £50.62/month

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Available

213

£1,349.95

Finance from £50.62/month

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1532

£1,349.95

Finance from £50.62/month

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213

£1,099.95

Finance from £41.24/month

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123

£1,099.95

Finance from £41.24/month

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Recently Reviewed

Metro Horizontal Radiator - Matt Black - Double Panel (600mm High) 1180mm Wide

Great radiator

2nd March 2026

First class

Kevin J from Staffordshire- verified purchaser

Metro Horizontal Radiator - Matt Black - Double Panel (600mm High) 590mm Wide

Great radiator's

2nd March 2026

First class

Kevin J from Staffordshire- verified purchaser

Urban Horizontal Radiator - Anthracite - Double Panel (600mm High)

Modern good looking Radiator

27th February 2026

Very happy with design & build quality.

Robert B from Highland- verified purchaser

Urban Horizontal Radiator - Anthracite - Double Panel (1600mm Wide)

Beautifully constructed and great value

27th February 2026

I searched high and low to find a modern style radiator that was also budget friendly - I'm really pleased with this purchase. It was a great price and delivered quickly. When it arrived, I was blown away by how solid and heavy it felt. I can't wait to put it in place and see it add some style to my room.

Matthew B from Cornwall- verified purchaser

FAQ's

Why choose Victorian Plumbing?

As the UK’s largest bathroom retailer, we offer a wide choice of horizontal radiators in sizes, styles and heat outputs for every home. Many are in stock for faster delivery, and our tools and support help you find the right fit with confidence.

  • Wide range of styles and finishes. Flat panel, oval tube and horizontal column radiators for every space.
  • Easy configuration. Choose your orientation, colour, height and width, and see your BTU and price update instantly.
  • In-stock options for faster delivery. No long waits, with next day delivery available on selected radiators.
  • Free standard delivery over £499. Clear delivery options displayed at checkout.
  • 0% finance on orders over £250. Spread the cost in a way that suits your budget.
  • Rated Excellent by thousands of customers. Trusted for quality products and reliable service.
  • Helpful tools and guidance. Use our BTU calculator and buying guides, or speak to our team.

 

Not sure where to start? These quick guides will help you choose the right horizontal radiator.

 

What are horizontal radiators?

They’re the classic, under-window style used in most homes. They counter cooler air coming from glazing and distribute warmth evenly across the room.

 

Why choose a horizontal radiator?

Horizontal radiators offer consistent, everyday heat and are easy to position along longer walls. With plenty of widths, heights and finishes available, it’s simple to match both performance and style.

 

Are horizontal radiators as efficient as vertical ones?

Yes, horizontal radiators can be just as efficient as vertical radiators, as long as the BTU output is correctly matched to your room size. The choice usually comes down to layout, wall space and style. If you’re unsure, try our  How to Calculate BTU guide to find the right output for your space.

 

What material should I choose?

Aluminium heats up quickly and is lightweight, making alumium radiators ideal for fast warmth. Steel offers steady, reliable heat and a broader choice of designs. Match the material you prefer, then size the BTU correctly for comfort.

 

What size do I need?

Start with the BTU requirement for your room. Then select a height and width that fits your wall space. Double panel options offer more heat where needed.

 

Can I customise my radiator?

Yes, many of our horizontal radiators are fully configurable. You can choose the orientation, colour, height and width, and your BTU and price update instantly. This makes it simple to find a radiator that fits both your layout and heat requirement.

 

Can I replace a vertical radiator with a horizontal one?

Yes, but the pipe centres may differ, so pipework might need adjusting. Choosing a similar or higher BTU ensures the room stays warm.

 

Do I need new valves?

Often, yes. Match valve orientation to your pipework:

Choose a finish that complements your radiator.