Free delivery on all orders
Limitless, free returns
Radiators from £27
20% OFF ALL RADIATORS & ACCESSORIES
AUTUMN20
Not sure which radiator is right for you? Our team is here to help choose the perfect fit.
Free delivery on all UK orders
Up to 25 year guarantee
Unlimited free returns
(with collection)
Free delivery on all orders
Limitless, free returns
Radiators from £27
1200mm x 400mm/400mm x 1200mm radiators are ideal for those tricky wall spaces that are either too short or narrow to fit more commonly sized radiators. They can slot nicely into unusual spaces,...
1200mm x 400mm/400mm x 1200mm radiators are ideal for those tricky wall spaces that are either too short or narrow to fit more commonly sized radiators. They can slot nicely into unusual spaces, while also ensuring the space is heated efficiently. If you have a tall and narrow or wide and squat space that is looking conspicuously blank, this may be the perfect radiator size for you.
1200mm x 400mm radiators and 400mm x 1200mm radiators will come with everything needed to fit it to a wall, but you will need to pay attention to the valves. The shape of the valve will depend on where the pipes come from, i.e. the floor or the wall. Angled or corner valves are most likely. Most radiators in the 1200mm x 400mm/400mm x 1200mm range are steel, ensuring that they’re lightweight, durable, and effective.
The Omeara - White Vertical Radiator H1400mm x W406mm Single Panel delivers both style and power, cranking out the BTUs to ensure efficiency when it comes to warming a room. The glossy finish ensures that it looks as good as it heats, and the 15-year guarantee showcases just how well engineered it is.
If you want something a little more chic (and horizontal), the Typhoon Axis - Black Horizontal Radiator H408mm x W1400mm Double Panel would be a great buy. The matt finish ensures a classy look, and this is delivered with no drop in standards when it comes to effectively bringing up the temperature of a room via central heating.
The vast majority of radiators in this size will come in black , white, or anthracite . There are very few options in bolder colours, although bespoke designer models are available that allow for more customisation of colour.
✔️ Free UK delivery on all orders and unlimited returns ✔️ Up to 25-year guarantee ✔️ Enormous range of radiators and accessories ✔️ All heat outputs independently tested and verified to confirm efficiency ✔️ Genuine, helpful advice from our customer service team
We're helping 75,000 people save money. Join them...
When you sign up to our newsletter, you’ll:
We'll also send you weekly discounts and deals (unsubscribe anytime)

Free delivery on all UK orders
Up to 25 year guarantee
Unlimited free returns
(with collection)
Free delivery on all orders
Limitless, free returns
Radiators from £27
© 2026 UK Radiators Copyright © 2013-present UK Radiators Ltd. All rights reserved.