Do you want to know more about flat panel radiators?

Those are the style that, like the name suggests, have a smooth front panel. They can be either horizontal or vertical, but either way, they can look rather striking. Perhaps you’ve been looking at some of Stelrad styles – or alternatively, some designer styles online.

If you like the look of flat panel radiators but aren’t sure if they’re for you, this blog should help give you a better idea. Because, as an experienced heating engineer, I’m going to share my knowledge and tell you everything you need to know about steel panel radiators.

I hope you’re sitting comfortably!

1. Most have a low surface temperature

What I mean by low surface temperature is that if you touch them, they won’t feel particularly hot. With these radiators, you can easily put your hand on the front and feel warmth – but they’re in no way scorchio. In contrast, if you put your hand on the back, they’d be absolutely boiling hot!

This means they’re great for having in nurseries, or older people’s homes. They’re protective. However, if you like to huddle by a radiator in the cold depths of winter, they might not be for you! (They’ll still adequately heat a room, though)

2. People buy them for their looks

Most homeowners tend to opt for these because they’re sleek and have a modern, contemporary look about them. A smooth, cleaner surface that’s appealing to the eye. And because of this, they can really stand out and make a statement in your home.

They look special… individual. So, if you like to be a bit different, flat panel radiators could be the style for you!

3. They’re good for allergy sufferers

Another great benefit of flat panel radiators is that no dust collects in them. Why? Well, they don’t have grilles or sidepanels, which is where dust tends to collect on standard radiators.

As a result, they tend to be much more friendly towards those who suffer from allergies.

4.¬†They’re more expensive

Of course, there had to be a downside! Flat panel radiators are typically around 12% more expensive than standard radiators. The main reason for this comes down to availability. They’re not the most popular, so when they’re ordered, they come direct from the factory.

And, because flat panel radiators tend to be special order, it means that you have to make sure all the sizes are spot on. It’d be impossible to pick up new ones the same day.

5. They take 7 – 14 days to order

Perhaps even longer if you’re ordering a special, custom-colour. This is why it’s so important to ensure you get the sizes spot on, as you can’t just take them back and pick up different ones the same day! Plus, if you open up the packaging, and take your flat panel radiators out of the plastic, you won’t be able to send them back.

Advice from an experienced engineer

Remember to get your engineer to double-check all the radiator sizes you need. Or alternatively, check them yourself, and ensure you add 80mm to cover the sizes of the valves at either side. Otherwise, you might be left kicking yourself when you find out the radiators you’ve ordered aren’t suitable for your rooms!

I once fitted a new boiler for a customer, and a year later he wanted to replace the radiators. His words to me were: “I just want something different from the boring, plain ones we have.”

He looked at old-fashioned ones, but wanted something nice, plain, simple and flush. When he saw the flat panel offerings, he immediately loved them. He chose four horizontal radiators and two vertical, which fitted in small spaces in his lounge. It worked out really nicely!


I hope this blog has enlightened you more when it comes to flat panel radiators. There’s surprisingly quite a lot to know! If you need some help measuring your required heating output, or measuring the sizes of radiators you need, ask your chosen engineer. They should be happy to help!

Do you have any questions about flat panel radiators? Simply leave me a comment below. I’d love to hear from you!