Product Information

The sleek profile and flat front finish of the Stelrad Planar adds to the decor of any room, offering an elegant choice for your home or office.

There is a design within the Planar range to suit all requirements, the lengths have been increased up to 3 metres and heights – up to 700mm, with the biggest in the range delivering 16,726 Btu/hr (Dt50).

Supplied fully assembled, the Stelrad Planar Horizontal radiator is easy to install. Every model comes with a directional air vent to direct waterflow during venting, with convectors precision-welded directly onto the waterways, to give greater efficiency and economy. In addition, all tappings are perfectly aligned, with best quality nickel-plated plugs and vents and the high definition pressings ensure smooth edges and corners.

Manufactured by the UK market leader, under ISO 9000 quality system, the Stelrad Planar comes with an unequalled pedigree, strictly controlled independent laboratory testing ensuring that all Stelrad Planar radiators are guaranteed to perform to a maximum working pressure of 116 psi (8 bar) and conform to BS EN 442 – the European Standard for radiators.

Every radiator comes wrapped in robust, practical packaging that will keep the product pristine, right through to handover. Protective through storage and transit, the new packaging design also allows for installation prior to removal.

Product Ranges

Stelrad combines the most sophisticated production resources in Europe with substantial investment in testing and verification of performance data, which has helped us create high output radiators delivering heating performance that exceed expectation.

We also want to exceed expectations when it comes to customer service, and our experts are on hand to support and understand your technical specification needs.

To contact our team of specialists, call +44 (0) 844 543 6200 and then option 4.

Please see our full Warranty Statement here

Planar Horizontal: 100 Models

Heights 300mm to 700mm
Lengths 400mm to 3000mm
Outputs 235 to 4901 watts
800 to 16729 Btu/hr
Type K1 & K2

Planar K3: 40 Models

Heights 300mm to 700mm
Lengths 400mm to 2400mm
Outputs 1346 - 5274 watts
4593 - 17996 Btu/hr
Types K3

Planar Vertical: 12 Models

Heights 1800mm, 2000mm & 2200mm
Lengths 400mm to 700mm
Outputs 1476 to 2961 watts
5036 to 10103 Btu/hr
Types K2


Stelrad radiators are available in white (RAL 9016) as standard, however the specific radiators identified are now available in a variety of colours. The colours shown are reproduced as accurately as this process will allow and can be made to order on the identified products.

  • RAL 1016

  • A1004 Golden yellow

  • A2003 Pastel orange

  • A3002 Carmine red

  • A3003 Robin red

  • A6018 Yellow green

  • A7001 Silver grey

  • A7011 Iron grey

  • A7016 Anthracite grey

  • A7030 Stone grey

  • A7035 Light grey

  • A8017 Chocolate brown

  • A9003 Signal white

  • A9005 Jet black

  • NT110 Papyrus white

  • NT120 Pearl white

  • NT130 Champagne

  • NT140 Beige

  • NT150 Beige grey

  • NT160 Pebble grey

  • NT170 Quartz grey

  • SN110 Cream white

  • SN120 Cream

  • SN130 Mocca

  • SN140 Bordeaux

  • SN150 Sepia

  • SN160 Pale blue

  • SN170 Black

Colours - Metallic

  • ML110 Dove grey

  • ML120 Titanium grey

  • ML130 Blue grey

  • ML140 Granite

  • ML150 Cappuccino

  • ML160 Terra brown

  • ML170 Graphite black


Product Downloads

  • Planar Horizontal – Technical & Installation
    1 MB
  • Planar Vertical – Technical & Installation
    1 MB
  • Planar K3 Range – Technical & Installation
    1,006 KB
  • Colour Options 1 Brochure
    3 MB