Stelrad Softline

Stelrad Softline panel radiators are offered in 300, 450, 600 and 700 mm heights and widths from 400 to 2000 mm. Choose a single K1, double P Plus or double K2 panel, each finished in RAL 9016 traffic white for wet central heating systems, then pick the size and output you need.

Skip to results list
102 items
Column grid
Column grid
  • Stelrad Softline 450mm x 500mm Single K1 Radiator 1289 BTU

    Stelrad Softline

    Softline 450mm x 500mm Single K1 Radiator 1289 BTU

    • 450 × 500 mm
    • 1,289 BTU/h (ΔT not stated)

    Code 239633

    £57.38 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 500mm Double K2 Radiator 2340 BTU

    Stelrad Softline

    Softline 450mm x 500mm Double K2 Radiator 2340 BTU

    • 450 × 500 mm
    • 2,340 BTU/h (ΔT not stated)

    Code 239646

    £85.86 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 400mm Single K1 Radiator 1030 BTU

    Stelrad Softline

    Softline 450mm x 400mm Single K1 Radiator 1030 BTU

    • 450 × 400 mm
    • 1,030 BTU/h (ΔT not stated)

    Code 239632

    £51.51 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 400mm Double K2 Radiator 1869 BTU

    Stelrad Softline

    Softline 450mm x 400mm Double K2 Radiator 1869 BTU

    • 450 × 400 mm
    • 1,869 BTU/h (ΔT not stated)

    Code 239645

    £70.79 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 2000mm Single K1 Radiator 5158 BTU

    Stelrad Softline

    Softline 450mm x 2000mm Single K1 Radiator 5158 BTU

    • 450 × 2,000 mm
    • 5,158 BTU/h (ΔT not stated)

    Code 239644

    £187.41 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 2000mm Double K2 Radiator 9355 BTU

    Stelrad Softline

    Softline 450mm x 2000mm Double K2 Radiator 9355 BTU

    • 450 × 2,000 mm
    • 9,355 BTU/h (ΔT not stated)

    Code 239657

    £333.03 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1800mm Single K1 Radiator 4643 BTU

    Stelrad Softline

    Softline 450mm x 1800mm Single K1 Radiator 4643 BTU

    • 450 × 1,800 mm
    • 4,643 BTU/h (ΔT not stated)

    Code 239643

    £168.64 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1800mm Double K2 Radiator 8420 BTU

    Stelrad Softline

    Softline 450mm x 1800mm Double K2 Radiator 8420 BTU

    • 450 × 1,800 mm
    • 8,420 BTU/h (ΔT not stated)

    Code 239656

    £299.75 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1600mm Double P Plus Radiator 5759 BTU

    Stelrad Softline

    Softline 450mm x 1600mm Double P Plus Radiator 5759 BTU

    • 450 × 1,600 mm
    • 5,759 BTU/h (ΔT not stated)

    Code 239718

    £218.09 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1600mm Double K2 Radiator 7485 BTU

    Stelrad Softline

    Softline 450mm x 1600mm Double K2 Radiator 7485 BTU

    • 450 × 1,600 mm
    • 7,485 BTU/h (ΔT not stated)

    Code 239655

    £266.39 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1400mm Single K1 Radiator 3609 BTU

    Stelrad Softline

    Softline 450mm x 1400mm Single K1 Radiator 3609 BTU

    • 450 × 1,400 mm
    • 3,609 BTU/h (ΔT not stated)

    Code 239641

    £131.05 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1400mm Double P Plus Radiator 5040 BTU

    Stelrad Softline

    Softline 450mm x 1400mm Double P Plus Radiator 5040 BTU

    • 450 × 1,400 mm
    • 5,040 BTU/h (ΔT not stated)

    Code 239717

    £190.80 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1400mm Double K2 Radiator 6547 BTU

    Stelrad Softline

    Softline 450mm x 1400mm Double K2 Radiator 6547 BTU

    • 450 × 1,400 mm
    • 6,547 BTU/h (ΔT not stated)

    Code 239654

    £324.00 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1200mm Single K1 Radiator 3094 BTU

    Stelrad Softline

    Softline 450mm x 1200mm Single K1 Radiator 3094 BTU

    • 450 × 1,200 mm
    • 3,094 BTU/h (ΔT not stated)

    Code 239640

    £112.25 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1200mm Double P Plus Radiator 4320 BTU

    Stelrad Softline

    Softline 450mm x 1200mm Double P Plus Radiator 4320 BTU

    • 450 × 1,200 mm
    • 4,320 BTU/h (ΔT not stated)

    Code 239716

    £163.53 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1200mm Double K2 Radiator 5612 BTU

    Stelrad Softline

    Softline 450mm x 1200mm Double K2 Radiator 5612 BTU

    • 450 × 1,200 mm
    • 5,612 BTU/h (ΔT not stated)

    Code 239653

    £199.60 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1100mm Single K1 Radiator 2838 BTU

    Stelrad Softline

    Softline 450mm x 1100mm Single K1 Radiator 2838 BTU

    • 450 × 1,100 mm
    • 2,838 BTU/h (ΔT not stated)

    Code 239639

    £102.90 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1100mm Double P Plus Radiator 3960 BTU

    Stelrad Softline

    Softline 450mm x 1100mm Double P Plus Radiator 3960 BTU

    • 450 × 1,100 mm
    • 3,960 BTU/h (ΔT not stated)

    Code 239715

    £149.89 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1100mm Double K2 Radiator 5145 BTU

    Stelrad Softline

    Softline 450mm x 1100mm Double K2 Radiator 5145 BTU

    • 450 × 1,100 mm
    • 5,145 BTU/h (ΔT not stated)

    Code 239652

    £182.98 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1000mm Single K1 Radiator 2579 BTU

    Stelrad Softline

    Softline 450mm x 1000mm Single K1 Radiator 2579 BTU

    • 450 × 1,000 mm
    • 2,579 BTU/h (ΔT not stated)

    Code 239638

    £93.47 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1000mm Double P Plus Radiator 3600 BTU

    Stelrad Softline

    Softline 450mm x 1000mm Double P Plus Radiator 3600 BTU

    • 450 × 1,000 mm
    • 3,600 BTU/h (ΔT not stated)

    Code 239714

    £136.25 inc. VAT

    Available to order

  • Stelrad Softline 450mm x 1000mm Double K2 Radiator 4677 BTU

    Stelrad Softline

    Softline 450mm x 1000mm Double K2 Radiator 4677 BTU

    • 450 × 1,000 mm
    • 4,677 BTU/h (ΔT not stated)

    Code 239651

    £166.32 inc. VAT

    Available to order

  • Stelrad Softline 300mm x 500mm Single K1 Radiator 870 BTU

    Stelrad Softline

    Softline 300mm x 500mm Single K1 Radiator 870 BTU

    • 300 × 500 mm
    • 870 BTU/h (ΔT not stated)

    Code 239624

    £52.92 inc. VAT

    Available to order

  • Stelrad Softline 300mm x 500mm Double K2 Radiator 1675 BTU

    Stelrad Softline

    Softline 300mm x 500mm Double K2 Radiator 1675 BTU

    • 300 × 500 mm
    • 1,675 BTU/h (ΔT not stated)

    Code 239628

    £76.87 inc. VAT

    Available to order

About Stelrad Softline

Softline sizes at a glance

The range runs from 300 mm up to 700 mm high, with widths from 400 to 2000 mm. Each product name gives the size and panel type, for example "Stelrad Softline 450mm x 1000mm Double P Plus", with the height first.

K1, P Plus or K2?

Searches for Softline often name the panel type, so here is how they differ.

Single K1

A single panel with one set of convector fins, and the lowest output of the three at a given size.

Double P Plus

Two panels with one set of fins. P Plus sits between K1 and K2 on output.

Double K2

Two panels with two sets of fins. In every Softline size offered as both, the K2 lists a higher output than the K1.

Sizing the radiator to the room

Get an estimate of the heat the room needs from our BTU calculator, which gives a figure in BTU, then compare it with the output in each product listing. Each product page shows its rated output, and the test condition (ΔT) where it is stated. Outputs are only directly comparable when both products state the same ΔT.

If you are replacing an existing radiator, measure its height, width and depth and note where the pipes come out of the wall.

Other Stelrad panel ranges

Softline sits alongside the Stelrad Elite and Stelrad Vita Compact ranges. Compare them in the Stelrad collection, or use the radiator finder to search every brand by size and output.

Frequently asked questions

  • What heights does Stelrad Softline come in?

    300, 450, 600 and 700 mm.

  • Does the K2 give more heat than the K1?

    Yes, at the same height and width. Across the 43 Softline sizes offered in both, the double K2 lists a higher BTU output than the single K1.

  • What colour is Stelrad Softline?

    RAL 9016 traffic white.