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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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Type 21 H600 x W800mm Double Panel Single Convector Radiator - P608K Large Image

£124.94

The stock status is In Stock

In Stock

Type 21 H400 x W1800mm Double Panel Single Convector Radiator - P418K Large Image

£164.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 11 H600 x W1200mm Compact Single Convector Radiator - S612K Large Image

£124.94

The stock status is In Stock

In Stock

3

4.7 out of 5 review stars
Type 22 H400 x W2000mm Compact Double Convector Radiator - D420K Large Image

£239.95

The stock status is In Stock

In Stock

4

4.8 out of 5 review stars
Type 22 H400 x W1400mm Compact Double Convector Radiator - D414K Large Image

£159.94

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Type 21 H400 x W1400mm Double Panel Single Convector Radiator - P414K Large Image

£134.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 11 H400 x W400mm Compact Single Convector Radiator - S404K Large Image

£74.94

The stock status is In Stock

In Stock

Metro Horizontal Radiator - Matt Black - Double Panel (600mm High) 1596mm Wide

£329.95

Finance from £12.37/month

The stock status is Due 26th Jan

Due 26th Jan

Matt BlackAnthraciteWhite

More Options

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

£269.95

Finance from £10.12/month

The stock status is Due 26th Jan

Due 26th Jan

WhiteAnthraciteMatt Black

More Sizes

Urban Horizontal Radiator – White – Double Panel (400mm High x 826mm Wide)

£199.95

The stock status is Due 26th Jan

Due 26th Jan

WhiteAnthraciteMatt Black

More Sizes

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

£149.95

The stock status is Due 26th Jan

Due 26th Jan

AnthraciteMatt BlackWhite

More Sizes

Keswick 300 x 1550mm Horizontal Radiator Anthracite 2 Column

£279.95

Finance from £10.49/month

The stock status is In Stock

In Stock

1

5 out of 5 review stars
AnthraciteMatt BlackWhiteRaw Metal

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Type 22 H600 x W700mm Compact Double Convector Radiator - D607K Large Image

£119.94

The stock status is In Stock

In Stock

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
Keswick 750 x 785mm Horizontal Radiator White 3 Column

£249.95

The stock status is Due 26th Jan

Due 26th Jan

WhiteAnthraciteMatt BlackRaw Metal

More Options

Type 22 H300 x W2000mm Compact Double Convector Radiator - D320K Large Image

£194.95

The stock status is In Stock

In Stock

Type 21 H400 x W1600mm Double Panel Single Convector Radiator - P416K Large Image

£154.94

The stock status is In Stock

In Stock

Metro Horizontal Radiator - Anthracite - Single Panel (600mm High) 413mm Wide

£89.95

The stock status is Due 16th Mar

Due 16th Mar

AnthraciteMatt BlackWhite

More Options

Urban Horizontal Radiator - White - Double Panel (400mm High x 1593mm Wide)

£359.95

Finance from £13.49/month

The stock status is Due 26th Jan

Due 26th Jan

1

5 out of 5 review stars
WhiteAnthraciteMatt Black

More Sizes

Keswick 750 x 1010mm Horizontal Radiator White 3 Column

£299.95

Finance from £11.24/month

The stock status is Due 10th Feb

Due 10th Feb

1

5 out of 5 review stars
WhiteAnthraciteMatt BlackRaw Metal

More Options

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

£149.95

The stock status is Due 26th Jan

Due 26th Jan

Matt BlackAnthraciteWhite

More Options

Type 22 H500 x W1600mm Compact Double Convector Radiator - D516K Large Image

£214.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 21 H600 x W1000mm Double Panel Single Convector Radiator - P610K Large Image

£134.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 21 H600 x W600mm Double Panel Single Convector Radiator - P606K Large Image

£99.94

The stock status is In Stock

In Stock

Keswick 300 x 1010mm Horizontal Radiator Anthracite 2 Column

£189.95

The stock status is In Stock

In Stock

AnthraciteMatt BlackWhiteRaw Metal

More Options

Urban Horizontal Radiator - Anthracite - Double Panel (400mm High) 1180mm Wide

£269.95

Finance from £10.12/month

The stock status is Due 26th Jan

Due 26th Jan

AnthraciteMatt BlackWhite

More Options

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

£229.95

The stock status is Due 26th Jan

Due 26th Jan

Matt BlackAnthraciteWhite

More Options

TATEWDH01

SAVE 23%

£229.95

Was £299.95

The stock status is 32 left in stock

32 left in stock

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

£149.94

The stock status is In Stock

In Stock

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Recently Reviewed

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

Radiators purchase

6th January 2026

Well packed, performance is good

Shaun Brady from South Glamorgan- verified purchaser

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

Rad & fittings

3rd January 2026

Quick delivery Well packaged Decent quality made radiator

Steven Lennie from Western Isles- verified purchaser

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

Great as described

1st January 2026

Well packaged and delivered securely on a pallet

James Mcavady from Highland- verified purchaser

Urban Horizontal Radiator - Anthracite - Single Panel (600mm High) 836mm Wide

Looks great, as expected

1st January 2026

Well packaged and delivered securely on a pallet

James Mcavady from Highland- 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.