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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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Keswick 300 x 1370mm Cast Iron Style Traditional 4 Column Matt Black Radiator

£369.95

Finance from £13.87/month

The stock status is In Stock

In Stock

Matt BlackAnthraciteWhiteRaw Metal

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Hudson Reed Sloane 600 x 586mm Horizontal Single Panel Radiator - Anthracite - HLA55 Large Image
Hudson Reed Sloane 600 x 992mm Horizontal Double Panel Radiator - Satin White - HLW56D Large Image

£299.95

Finance from £11.24/month

The stock status is In Stock

In Stock

Type 22 H400 x W600mm Compact Double Convector Radiator - D406K Large Image

£104.94

The stock status is In Stock

In Stock

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Type 21 H500 x W600mm Double Panel Single Convector Radiator - P506K Large Image

£99.94

The stock status is In Stock

In Stock

2

4.5 out of 5 review stars

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Type 21 H400 x W700mm Double Panel Single Convector Radiator - P407K Large Image

£99.94

The stock status is In Stock

In Stock

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Type 11 H300 x W500mm Compact Single Convector Radiator - S305K Large Image

£74.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars

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Type 22 H750 x W800mm Compact Double Convector Radiator - D708K Large Image

£149.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars

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213

SALE

£249.95

Was £262.45

The stock status is Low Stock

Low Stock

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Urban Horizontal Radiator - Anthracite - Single Panel (600mm High) 1596mm Wide

£199.95

The stock status is In Stock

In Stock

2

5 out of 5 review stars
AnthraciteMatt BlackWhite

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Hudson Reed Revive 600 x 992mm Horizontal Double Panel Radiator - Gloss White - HL339D Large Image

£269.95

Finance from £10.12/month

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Hudson Reed Revive 600 x 412mm Horizontal Single Panel Radiator - Anthracite - HLA37 Large Image

£139.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Keswick Grey 600 x 1355mm Cast Iron Style Traditional 2 Column Radiator

£309.95

Finance from £11.62/month

The stock status is In Stock

In Stock

Type 11 Compact Single Convector Radiator - H300 x W400mm - S304K Large Image

£74.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars

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Type 22 H600 x W2000mm Compact Double Convector Radiator - D620K Large Image

£319.95

Finance from £11.99/month

The stock status is In Stock

In Stock

2

5 out of 5 review stars

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Type 22 H500 x W1500mm Compact Double Convector Radiator - D515K Large Image

£204.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars

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Type 22 H500 x W1200mm Compact Double Convector Radiator - D512K Large Image

£169.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars

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Type 21 H500 x W800mm Double Panel Single Convector Radiator - P508K Large Image

£114.94

The stock status is In Stock

In Stock

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Type 21 H400 x W1000mm Double Panel Single Convector Radiator - P410K Large Image

£114.94

The stock status is In Stock

In Stock

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Type 11 H500 x W2200mm Compact Single Convector Radiator - S522K Large Image

£164.95

The stock status is In Stock

In Stock

2

4.5 out of 5 review stars

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Type 11 H500 x W500mm Compact Single Convector Radiator - S505K Large Image

£79.94

The stock status is In Stock

In Stock

2

4.5 out of 5 review stars

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Type 11 H400 x W1200mm Compact Single Convector Radiator - S412K Large Image

£99.94

The stock status is In Stock

In Stock

1

2 out of 5 review stars

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Type 11 H400 x W700mm Compact Single Convector Radiator - S407K Large Image

£84.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars

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RND-SLN06004W

£188.63

The stock status is In Stock

In Stock

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Premier - Salvia Double Panel Radiator - 635 x 863mm - White - HSA004 Large Image

£249.95

The stock status is In Stock

In Stock

213

SALE

£349.95

Was £367.45

Finance from £13.12/month

The stock status is Low Stock

Low Stock

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Hudson Reed Revive 600 x 412mm Horizontal Double Panel Radiator - Gloss White - HL337D Large Image

£139.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 22 H750 x W1400mm Compact Double Convector Radiator - D714K Large Image

£234.95

The stock status is In Stock

In Stock

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Type 22 H750 x W900mm Compact Double Convector Radiator - D709K Large Image

£169.94

The stock status is In Stock

In Stock

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Type 22 H500 x W1100mm Compact Double Convector Radiator - D511K Large Image

£159.94

The stock status is In Stock

In Stock

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Need help with Horizontal Radiators?

Recently Reviewed

Keswick 800 x 612 Cast Iron Style Traditional White Towel Rail

Great looking radiator

24th April 2026

Filled the space lovely, easy to install, well made

matthew F from - verified purchaser

AG3COL02

Anchracite Radiators

24th April 2026

These 3 column rads are well made and precise. We looked at buying feet for the rads , but as we had the supplied wall fittings and strong brick walls we used them

Philip M from Mon- verified purchaser

Keswick 600 x 1190mm Cast Iron Style Traditional 3 Column Matt Black Radiator

Good

20th April 2026

Good

Michael H from Greater Manchester- verified purchaser

Keswick 600 x 1010mm Cast Iron Style Traditional 2 Column Matt Black Radiator

Good

20th April 2026

Good

Michael H from Greater Manchester- 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.