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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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Recently Reviewed
Lovely Radiator...
8th May 2026This radiator is lovely... I was looking for that retro/industrial look to modernise an old stone cottage and this has hit the mark... built to survive a nuclear detonation... it's seriously heavy, but solid... very very solid. I wish they did other sizes, if they did I've buy more of them. The colour on the website has a green hue, these are effectively gun metal grey (raw metal)... not green hue at all. The end pieces to the end sections look amazing... I guarantee everyone will comment on how nice they look, they're a conversation piece for sure. My only criticism on this particular radiator (wasn't present on the other tall Buxton radiator I bought) is there is a rust(ish) mark on one side, but the other side was fine, so it's OK, that side can go against the wall. Awesome value for money... and beautiful style. Very happy.
Craig H from Peterborough
Reliable as always
8th May 2026Great product, arrives quickly and looks great
Deborah C from - verified purchaser
Very nice.
7th May 2026Very happy with both the appearance and efficiency.
Lee S from West Yorkshire- verified purchaser
Smooth ordering and great quality
5th May 2026Very pleased with my purchase from Victorian Plumbing. Ordering was straightforward, delivery was prompt, and everything arrived well packaged. The product was exactly as described and feels good quality for the price. Fitting was simple and instructions were clear. Overall, a smooth experience from start to finish and I would happily order again.
Andrew K from Leicestershire- 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:
- Angled valves: Pipes from the floor, side connections
- Straight valves: Pipes from the floor, bottom connections
- Corner valves: Pipes from the wall, either connection type
Choose a finish that complements your radiator.