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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 11 H750 x W1600mm Compact Single Convector Radiator - S716K Large Image

£154.94

The stock status is In Stock

In Stock

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 11 H500 x W1800mm Compact Single Convector Radiator - S518K Large Image

£144.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 11 H500 x W1200mm Compact Single Convector Radiator - S512K Large Image

£109.94

The stock status is In Stock

In Stock

Type 11 H500 x W1000mm Compact Single Convector Radiator - S510K Large Image

£99.94

The stock status is In Stock

In Stock

Type 11 H500 x W900mm Compact Single Convector Radiator - S509K Large Image

£94.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 11 H500 x W800mm Compact Single Convector Radiator - S508K Large Image

£94.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 11 H500 x W600mm Compact Single Convector Radiator - S506K Large Image

£84.94

The stock status is In Stock

In Stock

Type 11 H400 x W1000mm Compact Single Convector Radiator - S410K Large Image

£94.94

The stock status is In Stock

In Stock

Type 11 H400 x W600mm Compact Single Convector Radiator - S406K Large Image

£74.94

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Type 11 H400 x W500mm Compact Single Convector Radiator - S405K Large Image

£79.94

The stock status is In Stock

In Stock

Premier - Salvia Double Panel Radiator - 635 x 863mm - Anthracite - HSA008 Large Image

£259.95

Finance from £9.74/month

The stock status is In Stock

In Stock

Urban H600 x W836mm Matt Black Electric Only Single Panel Radiator with On/Off Element

Inc. Bluetooth

£319.95

Finance from £11.99/month

The stock status is Due 28th Nov

Due 28th Nov

Hudson Reed Revive 600 x 992mm Horizontal Single Panel Radiator - Gloss White - HL339 Large Image
Hudson Reed Revive 600 x 1398mm Horizontal Double Panel Radiator - Gloss White - HL340D Large Image

£399.95

Finance from £14.99/month

The stock status is In Stock

In Stock

Hudson Reed Revive 600 x 586mm Horizontal Single Panel Radiator - Anthracite - HLA38 Large Image
Hudson Reed Revive 600 x 412mm Horizontal Double Panel Radiator - Anthracite - HLA37D Large Image
Hudson Reed Revive 600 x 992mm Horizontal Double Panel Radiator - Anthracite - HLA39D Large Image

£299.95

Finance from £11.24/month

The stock status is In Stock

In Stock

Hudson Reed Sloane 600 x 412mm Horizontal Double Panel Radiator - Anthracite - HLA54D Large Image
Hudson Reed Sloane 600 x 1572mm Horizontal Double Panel Radiator - Anthracite - HLA60D Large Image

£499.95

Finance from £18.74/month

The stock status is In Stock

In Stock

1

5 out of 5 review stars
Hudson Reed Sloane 600 x 586mm Horizontal Single Panel Radiator - Satin White - HLW55 Large Image
Hudson Reed Colosseum Triple Column Radiator 600 x 1011mm - White

£339.95

Finance from £12.74/month

The stock status is In Stock

In Stock

3

5 out of 5 review stars
Ultra Colosseum Triple Column Radiator 600 x 786mm - White - HX305 Large Image

£269.95

Finance from £10.12/month

The stock status is In Stock

In Stock

4

5 out of 5 review stars
Metro Horizontal Radiator - Anthracite - Double Panel (600mm High) 1416mm Wide

£289.95

Finance from £10.87/month

The stock status is In Stock

In Stock

AnthraciteMatt BlackWhite

More Options

Hudson Reed Revive 600 x 992mm Horizontal Single Panel Radiator - Anthracite - HLA39 Large Image
Type 11 H300 x W600mm Compact Single Convector Radiator - S306K Large Image

£79.94

The stock status is In Stock

In Stock

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Recently Reviewed

Metro Horizontal Radiator - Anthracite - Double Panel (1600mm Wide) 413mm High

Good sturdy radiator

24th November 2025

Looks good, can be mounted horizontally or vertically.

Nathan Tyrrell from Kent- verified purchaser

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

nice looking modern radiator

24th November 2025

it radiates well and looks great. delivery was fast, although there was no help to bring it inside

Kate Redman from - verified purchaser

Keswick 750 x 1010mm Horizontal Radiator Anthracite 3 Column

good looking radiator

24th November 2025

it radiates well and looks great. delivery was fast, although there was no help to bring it inside

Kate Redman from - verified purchaser

Urban Electric Smart Wifi Aluminium Panel 1500W Energy Saving Horizontal White Radiator - 500 x 725mm

Radiator

23rd November 2025

Heats up room quickly

Matthew Deacon 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.