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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 600 x 785mm Horizontal Radiator Matt Black 2 Column

£209.95

The stock status is In Stock

In Stock

Matt BlackAnthraciteWhiteRaw Metal

More Options

Urban Horizontal Radiator - White - Double Panel (600mm High) 1748mm Wide

£349.95

Finance from £13.12/month

The stock status is In Stock

In Stock

WhiteAnthraciteMatt Black

More Sizes

Urban Horizontal Radiator - White - Single Panel (600mm High) 456mm Wide

£89.95

The stock status is In Stock

In Stock

Matt BlackAnthraciteWhite

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Urban Horizontal Radiator - White - Double Panel (600mm High) 456mm Wide

£149.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars
WhiteAnthraciteMatt Black

More Sizes

Urban 500 x 946mm Smart WiFi Aluminium Electric Radiator - 1500W White

£239.95

The stock status is In Stock

In Stock

WhiteAnthraciteBlack

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Urban Horizontal Radiator - Anthracite - Single Panel (600mm High) 456mm Wide

£89.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars
AnthraciteMatt BlackWhite

More Sizes

Keswick 300 x 785mm Horizontal Radiator White 2 Column

£169.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars
WhiteAnthraciteMatt BlackRaw Metal

More Options

Urban Horizontal Radiator - White - Single Panel (600mm High) 988mm Wide

£149.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars
WhiteAnthraciteMatt Black

More Options

Keswick 600 x 1370mm Cast Iron Style Traditional 3 Column White Radiator

£369.95

Finance from £13.87/month

The stock status is In Stock

In Stock

20

4.8 out of 5 review stars
WhiteAnthraciteMatt BlackRaw Metal

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Keswick 600 x 1550mm Cast Iron Style Traditional 3 Column White Radiator

£399.95

Finance from £14.99/month

The stock status is In Stock

In Stock

7

4.7 out of 5 review stars
WhiteAnthraciteMatt BlackRaw Metal

More Options

Keswick 450 x 1415mm Cast Iron Style Traditional 3 Column White Radiator

£339.95

Finance from £12.74/month

The stock status is In Stock

In Stock

5

5 out of 5 review stars
WhiteAnthraciteMatt BlackRaw Metal

More Options

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

£319.95

Finance from £11.99/month

The stock status is In Stock

In Stock

3

5 out of 5 review stars
Matt BlackAnthraciteRaw MetalWhite

More Options

Urban Horizontal Radiator - White - Single Panel (600mm High) 608mm Wide

£99.95

The stock status is In Stock

In Stock

16

4.9 out of 5 review stars
WhiteAnthraciteMatt Black

More Sizes

Keswick 600 x 785mm Cast Iron Style Traditional 3 Column Matt Black Radiator

£219.95

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Matt BlackAnthraciteRaw MetalWhite

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AG3COL03

SAVE 37%

£189.95

Was £299.95

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Urban Horizontal Radiator - Matt Black - Double Panel (600mm High) 1216mm Wide

£269.95

Finance from £10.12/month

The stock status is In Stock

In Stock

3

5 out of 5 review stars
Matt BlackAnthraciteWhite

More Options

Urban Horizontal Radiator - Matt Black - Double Panel (600mm High) 608mm Wide

£169.95

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Matt BlackAnthraciteWhite

More Options

Keswick 450 x 1415mm Cast Iron Style Traditional 2 Column Anthracite Radiator

£289.95

Finance from £10.87/month

The stock status is In Stock

In Stock

3

5 out of 5 review stars
AnthraciteMatt BlackWhiteRaw Metal

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Keswick H300 x W1010mm Horizontal Radiator White 2 Column (22 Sections)

£189.95

The stock status is In Stock

In Stock

4

5 out of 5 review stars
WhiteAnthraciteMatt BlackRaw Metal

More Options

Urban 500 x 1167mm Smart WiFi Aluminium Electric Radiator - 2000W Anthracite

£249.95

The stock status is In Stock

In Stock

AnthraciteWhiteBlack

More Options

Urban Horizontal Radiator - White - Double Panel (600mm High) 988mm Wide

£229.95

The stock status is In Stock

In Stock

Matt BlackAnthraciteWhite

More Options

Keswick 450 x 605mm Horizontal Radiator White 2 Column

£149.95

The stock status is In Stock

In Stock

WhiteAnthraciteMatt BlackRaw Metal

More Options

Urban Horizontal Radiator – White – Double Panel (400mm High x 1180mm Wide)

£269.95

Finance from £10.12/month

The stock status is In Stock

In Stock

WhiteAnthraciteMatt Black

More Sizes

Keswick 600 x 1190mm Horizontal Radiator Matt Black 2 Column

£289.95

Finance from £10.87/month

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Matt BlackAnthraciteWhiteRaw Metal

More Options

Urban 500 x 1167mm Smart WiFi Aluminium Electric Radiator - 2000W Matt Black

£249.95

The stock status is In Stock

In Stock

BlackWhiteAnthracite

More Options

Keswick 450 x 605mm Horizontal Radiator White 3 Column

£169.95

The stock status is In Stock

In Stock

WhiteAnthraciteMatt BlackRaw Metal

More Options

Urban Horizontal Radiator - Anthracite - Double Panel (600mm High) 1748mm Wide

£349.95

Finance from £13.12/month

The stock status is In Stock

In Stock

AnthraciteMatt BlackWhite

More Options

Urban Horizontal Radiator - Anthracite - Double Panel (600mm High) 456mm Wide

£149.95

The stock status is In Stock

In Stock

AnthraciteMatt BlackWhite

More Sizes

Keswick 450 x 1010mm Horizontal Radiator Matt Black 2 Column

£229.95

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Matt BlackAnthraciteWhiteRaw Metal

More Options

Urban Horizontal Radiator - White - Single Panel (600mm High) 1368mm Wide

£189.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars
WhiteAnthraciteMatt Black

More Sizes

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Need help with Horizontal Radiators?

Recently Reviewed

Keswick 450 x 1415mm Cast Iron Style Traditional 2 Column Anthracite Radiator

Review From Trustpilot

15th March 2026

The radiator came well packaged and delivered promptly.

Garry M- verified purchaser

Keswick 450 x 1415mm Cast Iron Style Traditional 3 Column Anthracite Radiator

Review From Trustpilot

15th March 2026

The radiator came well packaged and promptly.

Garry M- verified purchaser

Keswick 600 x 1010mm Cast Iron Style Traditional 4 Column Matt Black Radiator

Beautiful radiator

15th March 2026

Really pleased with my purchase of this radiator - excellent quality and looks better in reality than expected.

PAMELA M from North Ayrshire- verified purchaser

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

Rads

14th March 2026

arrived well protected and securely, looks high quality finish easy to install..

Collin P from - 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.