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Flat Panel Radiators

Flat Panel Radiators

Flat panel radiators give you efficient heating without taking up much wall space. These slim designs work well in modern homes where every centimetre matters, and they look considerably better than chunky old radiators that stick out from the wall.

You'll find them in new builds and renovations because they heat rooms properly whilst keeping walls free for furniture. The flat profile means you can place sofas and desks closer to the wall, which makes a real difference in smaller rooms.

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Why Flat Panel Designs Work Better

Traditional radiators have deep fins and columns that jut out into your room. Flat panel radiators sit almost against the wall, usually projecting just a little bit (60-100mm).This makes them ideal for tight spaces like hallways or small bedrooms where large radiators would get in the way.The clean lines suit modern interiors. Most people don't want their radiators to be a focal point, and flat panels achieve that nicely.
Heat output hasn't been sacrificed for looks, either. Modern flat panel radiators distribute warmth evenly across their surface area, which heats rooms faster than you might expect from such a slim design. The increased surface area compensates for the reduced depth.

Choosing Between Colours and Finishes

White flat panel radiators remain the most popular choice because they disappear against white walls. If your skirting boards and woodwork are white, a white radiator becomes almost invisible, which is usually what people want.

Anthracite grey has become common in recent years. It looks smart in modern schemes and shows less marking than white in high-traffic areas. The dark colour also suits industrial-style interiors or rooms with exposed brick and metal fixtures.

Matte black makes a statement. These radiators become a feature rather than something you're trying to hide. They work well in bathrooms, home offices, or bedrooms where you want a bit of contrast. The finish is practical too - fingerprints and dust show up less than on gloss surfaces.

Gloss finishes reflect more light and look cleaner, but they also show every mark. Matte finishes are more forgiving for families with kids who touch everything.

Single Panel vs Double Panel Radiators

Single panel radiators will work better in well-insulated rooms. If your room already stays warm and you just need a bit of background heat, single panels do the job without costing a fortune.

Double panel radiators have two layers with fins between them, which gives you more heat output from the same wall space. They're better for main heating in living rooms, bedrooms, or anywhere that needs to stay properly warm through winter. Yes, they cost more upfront, but they'll heat the room you actually need heated.

The choice depends on your room size and how much heat you need. A small bathroom might only need a single panel. Your main living room probably wants a double panel, especially if it has patio doors or lots of windows that let heat escape.

Sizing Your Flat Panel Radiator

Measure the wall space you've got available. Radiators come in standard widths from 400mm up to 1800mm, with heights typically between 600mm and 1800mm. You need about 100mm clearance on each side for air circulation, and nothing should block the front of the radiator.

Calculate the BTU output needed for your room size. This depends on room dimensions, insulation, window size, and what's above or below the room. Online BTU calculators give you a decent starting point. Better to go slightly bigger than needed rather than ending up with a radiator that struggles to warm the room.

Remember that taller radiators often heat better than wider ones, assuming the same total surface area. The vertical design creates better convection currents that circulate warm air through the room more effectively.

Installation and Compatibility

Most flat panel radiators work with standard central heating systems. They connect using the same 15mm pipe fittings as traditional radiators, so swapping an old radiator for a flat panel is straightforward for any plumber.

Check whether you need bottom, side, or middle connections before buying. Your existing pipe positions might limit which radiators work without additional plumbing. Some radiators include adaptor kits that give you flexibility on connection positions.

Wall brackets are usually included. Make sure your wall can support the weight when the radiator's full of water. Plasterboard walls might need additional support, especially for larger radiators. Solid walls aren't usually a problem.

Free UK Delivery on All Radiators

We deliver free to anywhere on the UK mainland. Your new flat panel radiator arrives ready to transform your heating setup, all without delivery charges pushing up the cost.

Frequently Asked Questions

Find answers to common questions about Flat Panel Radiators

Yes, modern flat panel radiators are highly efficient. They heat up quickly and distribute warmth evenly across their surface. The increased surface area compensates for the slimmer profile, providing excellent heat output whilst using less wall space than traditional column radiators.

Single panel radiators have one heating panel and are slimmer and cheaper. Double panel radiators include two panels with convector fins between them, providing significantly more heat output from the same wall space. Double panels are better for main heating in larger rooms.

Measure your room dimensions and use a BTU calculator to work out heat requirements. Consider factors like ceiling height, insulation, window size, and external walls. As a rough guide, you need around 100 watts per square metre in a well-insulated room, more if insulation is poor.

Absolutely. Many flat panel radiators are designed specifically for bathrooms. Look for models with appropriate IP ratings for wet environments. Towel rail versions combine heating with practical hanging space for towels and clothes.

Yes, the colour doesn't affect heat output. Anthracite and black radiators perform identically to white ones of the same size and specification. The colour choice is purely about what suits your décor and personal preference.

Not particularly. They connect to standard central heating systems using typical 15mm fittings. Any competent plumber can fit them in a couple of hours. Make sure your wall can support the weight and that pipe positions match your chosen radiator's connection points.

Most flat panel radiators project just 60-100mm from the wall, far less than traditional radiators. Leave about 100mm clearance on each side for air circulation and around 100mm above for heat to rise properly. Don't position furniture directly in front.

Yes, we provide UK mainland delivery free on all radiators. Your radiator arrives securely packaged and ready for installation, with no hidden delivery charges adding to the cost. Delivery timeframes vary depending on your location but typically arrive within a week.