Do Double Panel Radiators Take Up More Space?

Amy Fenton
Authored by Amy Fenton
Posted: Wednesday, April 16, 2025 - 12:58

When upgrading your home’s heating system, one common question is whether a double panel radiator takes up more space than a single panel model. While it’s true that double panel radiators are thicker, does this actually impact your room’s layout and usability?

Let’s break down the differences, discuss whether the extra depth is a dealbreaker, and explore whether the benefits of a double panel radiator outweigh the potential space concerns.

Do Double Panel Radiators Actually Take Up More Space?

Physical Dimensions

Yes, double panel radiators are thicker than single panel ones. A single panel radiator typically has a depth of around 50–70mm, while a double panel model can be between 100–130mm deep. This means a double panel radiator can protrude further from the wall, but the difference is usually only a few centimetres.

Wall Projection

While a double panel radiator extends further from the wall, the impact on room space is often minimal. In most cases, radiators are installed along walls that are not frequently used for walking or furniture placement, meaning the extra depth is rarely a major concern. However, in very tight spaces such as narrow hallways or small bathrooms, a slimline radiator or a single panel model might be a better fit. Check out this latest radiator collection to find the perfect one for your home.

Floor Space Considerations

Radiators are typically mounted on walls, so their depth is the main space-related factor. Unlike furniture, they don’t take up floor space in the traditional sense. However, if you have limited clearance in front of the radiator—for example, behind a sofa or in a narrow corridor—the extra depth could be a factor to consider.

Heat Output vs. Space Efficiency

One of the biggest advantages of a double panel radiator is its ability to heat a room more efficiently. Because it has a larger surface area and more convector fins, it produces and retains more heat compared to a single panel radiator of the same width.

This increased efficiency can sometimes mean you need fewer radiators overall, which could actually save space in your home. For example, instead of installing multiple single panel radiators in a large room, you might achieve the same heating effect with one or two well-placed double panel models.

The Benefits of a Vertical Radiator

Have you wondered why a lot of homeowners are investing in vertical radiators? While this might not have been a design you considered before, its popularity can make you curious. Indeed, there are many advantages to vertical radiators, which makes them a great investment for your home. Let’s take a closer look at the benefits they can offer.

Save Space in Your House

Do you hate how much space a horizontal, traditional radiator can take up in your home? Indeed, large designs can mean that you have limited wall space for furniture. Alternatively, you might find that they dominate small rooms in your home. Know that this is when a vertical radiator comes in. Since the design is taller, they take up less horizontal space on your walls. This is perfect for small bathrooms, compact kitchens and busy living rooms. What’s more, they can fit awkward spaces better due to their compact design.

Better Heat for High Ceilings

In large rooms with high ceilings, it can take a while for a traditional radiator to spread heat around. Know that this is when you can do with a modern and efficient vertical radiator. Since it’s going to be nearer to the ceiling, it can make sure that the heat spreads around the room faster. This can make a big difference in the winter.

A Modern Style

Do you want to freshen up your home and add some new radiators? While this is a good idea, you also want to ensure you choose contemporary designs. This is where a vertical radiator comes in. Many homeowners like how they look and how they can change how their house appears. 

Conclusion

So, does a double panel radiator take up more space? Technically, yes — but in most cases, the difference is minor and unlikely to impact your room’s functionality. The key consideration is whether the improved heat output outweighs the small increase in depth.

For larger spaces, a double panel radiator is often the better choice, as it provides greater efficiency and faster heating. But if space is extremely limited, a single panel or slimline alternative may be the best solution. Whatever your choice, understanding your heating needs and room layout will help you make the best decision for your home.