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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 22 H500 x W1300mm Compact Double Convector Radiator - D513K Large Image

£179.94

The stock status is In Stock

In Stock

Type 21 H600 x W1500mm Double Panel Single Convector Radiator - P615K Large Image

£199.94

The stock status is In Stock

In Stock

4

4.8 out of 5 review stars
Type 21 H400 x W1200mm Double Panel Single Convector Radiator - P412K Large Image

£124.94

The stock status is In Stock

In Stock

Type 11 H600 x W900mm Compact Single Convector Radiator - S609K Large Image

£99.94

The stock status is In Stock

In Stock

Type 11 H500 x W1300mm Compact Single Convector Radiator - S513K Large Image

£114.94

The stock status is In Stock

In Stock

Metro Horizontal Radiator - Matt Black - Double Panel (600mm High) 1003mm Wide

£239.95

The stock status is Due 26th Jan

Due 26th Jan

1

5 out of 5 review stars
Matt BlackAnthraciteWhite

More Options

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

£189.95

The stock status is Due 26th Jan

Due 26th Jan

WhiteAnthraciteMatt Black

More Sizes

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

£199.95

The stock status is Due 26th Jan

Due 26th Jan

Matt BlackAnthraciteWhite

More Options

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

£149.95

The stock status is Due 26th Jan

Due 26th Jan

WhiteAnthraciteMatt Black

More Sizes

Keswick 750 x 1010mm Horizontal Radiator Matt Black 4 Column

£369.95

Finance from £13.87/month

The stock status is Due 22nd Jan

Due 22nd Jan

Matt BlackAnthraciteWhiteRaw Metal

More Options

Keswick 300 x 1010mm Horizontal Radiator Matt Black 2 Column

£189.95

The stock status is In Stock

In Stock

Matt BlackAnthraciteWhiteRaw Metal

More Options

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
Type 21 H600 x W1600mm Compact Double Convector Radiator - P616K Large Image

£209.94

The stock status is In Stock

In Stock

1

4 out of 5 review stars
Type 22 H600 x W1500mm Compact Double Convector Radiator - D615K Large Image

£234.95

The stock status is In Stock

In Stock

Type 22 H600 x W900mm Compact Double Convector Radiator - D609K Large Image

£144.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 22 H600 x W800mm Compact Double Convector Radiator - D608K Large Image

£134.94

The stock status is In Stock

In Stock

Type 22 H500 x W2200mm Compact Double Convector Radiator - D522K Large Image

£309.95

Finance from £11.62/month

The stock status is In Stock

In Stock

Type 22 H400 x W1800mm Compact Double Convector Radiator - D418K Large Image

£209.94

The stock status is In Stock

In Stock

2

5 out of 5 review stars
Type 21 H500 x W2000mm Double Panel Single Convector Radiator - P520K Large Image

£234.95

The stock status is In Stock

In Stock

Type 11 H600 x W2200mm Compact Single Convector Radiator - S622K Large Image

£189.95

The stock status is In Stock

In Stock

1

5 out of 5 review stars
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
Type 11 H400 x W2200mm Compact Single Convector Radiator - S422K Large Image

£149.95

The stock status is In Stock

In Stock

Metro Horizontal Radiator - Matt Black - Double Panel (600mm High) 1416mm Wide

£289.95

Finance from £10.87/month

The stock status is Due 22nd Jan

Due 22nd Jan

Matt BlackAnthraciteWhite

More Options

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

£219.95

The stock status is Due 26th Jan

Due 26th Jan

1

5 out of 5 review stars
WhiteAnthraciteMatt Black

More Options

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

£349.95

Finance from £13.12/month

The stock status is Due 25th Feb

Due 25th Feb

Matt BlackAnthraciteWhite

More Options

Keswick 300 x 1550mm Horizontal Radiator Matt Black 2 Column

£279.95

Finance from £10.49/month

The stock status is In Stock

In Stock

Matt BlackAnthraciteWhiteRaw Metal

More Options

Type 11 H600 x W1100mm Compact Single Convector Radiator - S611K Large Image

£114.94

The stock status is In Stock

In Stock

Type 11 H300 x W1600mm Compact Single Convector Radiator - S316K Large Image

£99.94

The stock status is In Stock

In Stock

Type 22 H500 x W1800mm Compact Double Convector Radiator - D518K Large Image

£254.95

Finance from £9.56/month

The stock status is In Stock

In Stock

Type 21 H600 x W1800mm Double Panel Single Convector Radiator - P618K Large Image

£229.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars

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Need help with Horizontal Radiators?

Recently Reviewed

Type 11 H500 x W800mm Compact Single Convector Radiator - S508K Large Image

Value for Money

11th January 2026

The Kartell K-RAD Kompact from Victoria Plumbing offers solid value for money, delivering reliable heat output and a clean, modern look at a very reasonable price. Build quality feels sturdy and well-finished, comparable to more expensive brands. Overall, it’s a cost-effective choice if you want a smart, efficient radiator without paying premium prices.

calum austin from Greater London- verified purchaser

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

Value for Money

11th January 2026

The Kartell K-RAD Kompact from Victoria Plumbing offers solid value for money, delivering reliable heat output and a clean, modern look at a very reasonable price. Build quality feels sturdy and well-finished, comparable to more expensive brands. Overall, it’s a cost-effective choice if you want a smart, efficient radiator without paying premium prices.

calum austin from Greater London- verified purchaser

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

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.