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.

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102 items
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  • Stelrad Softline 700mm x 900mm Single K1 Radiator 3429 BTU

    Stelrad Softline

    Softline 700mm x 900mm Single K1 Radiator 3429 BTU

    • 700 × 900 mm
    • 3,429 BTU/h (ΔT not stated)

    Code 239689

    £125.06 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 900mm Double K2 Radiator 6022 BTU

    Stelrad Softline

    Softline 700mm x 900mm Double K2 Radiator 6022 BTU

    • 700 × 900 mm
    • 6,022 BTU/h (ΔT not stated)

    Code 239702

    £214.73 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 800mm Single K1 Radiator 3050 BTU

    Stelrad Softline

    Softline 700mm x 800mm Single K1 Radiator 3050 BTU

    • 700 × 800 mm
    • 3,050 BTU/h (ΔT not stated)

    Code 239688

    £111.16 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 800mm Double K2 Radiator 5353 BTU

    Stelrad Softline

    Softline 700mm x 800mm Double K2 Radiator 5353 BTU

    • 700 × 800 mm
    • 5,353 BTU/h (ΔT not stated)

    Code 239701

    £190.77 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 700mm Single K1 Radiator 2668 BTU

    Stelrad Softline

    Softline 700mm x 700mm Single K1 Radiator 2668 BTU

    • 700 × 700 mm
    • 2,668 BTU/h (ΔT not stated)

    Code 239687

    £101.31 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 700mm Double K2 Radiator 4684 BTU

    Stelrad Softline

    Softline 700mm x 700mm Double K2 Radiator 4684 BTU

    • 700 × 700 mm
    • 4,684 BTU/h (ΔT not stated)

    Code 239700

    £239.83 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 600mm Single K1 Radiator 2286 BTU

    Stelrad Softline

    Softline 700mm x 600mm Single K1 Radiator 2286 BTU

    • 700 × 600 mm
    • 2,286 BTU/h (ΔT not stated)

    Code 239686

    £90.53 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 600mm Double K2 Radiator 4015 BTU

    Stelrad Softline

    Softline 700mm x 600mm Double K2 Radiator 4015 BTU

    • 700 × 600 mm
    • 4,015 BTU/h (ΔT not stated)

    Code 239699

    £145.74 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 500mm Single K1 Radiator 1907 BTU

    Stelrad Softline

    Softline 700mm x 500mm Single K1 Radiator 1907 BTU

    • 700 × 500 mm
    • 1,907 BTU/h (ΔT not stated)

    Code 239685

    £80.68 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 500mm Double K2 Radiator 3347 BTU

    Stelrad Softline

    Softline 700mm x 500mm Double K2 Radiator 3347 BTU

    • 700 × 500 mm
    • 3,347 BTU/h (ΔT not stated)

    Code 239698

    £122.91 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 400mm Single K1 Radiator 1525 BTU

    Stelrad Softline

    Softline 700mm x 400mm Single K1 Radiator 1525 BTU

    • 700 × 400 mm
    • 1,525 BTU/h (ΔT not stated)

    Code 239684

    £71.72 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 400mm Double K2 Radiator 2675 BTU

    Stelrad Softline

    Softline 700mm x 400mm Double K2 Radiator 2675 BTU

    • 700 × 400 mm
    • 2,675 BTU/h (ΔT not stated)

    Code 239697

    £101.29 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 2000mm Single K1 Radiator 7622 BTU

    Stelrad Softline

    Softline 700mm x 2000mm Single K1 Radiator 7622 BTU

    • 700 × 2,000 mm
    • 7,622 BTU/h (ΔT not stated)

    Code 239696

    £278.78 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 2000mm Double K2 Radiator 13381 BTU

    Stelrad Softline

    Softline 700mm x 2000mm Double K2 Radiator 13381 BTU

    • 700 × 2,000 mm
    • 13,381 BTU/h (ΔT not stated)

    Code 239709

    £478.07 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 1800mm Single K1 Radiator 6861 BTU

    Stelrad Softline

    Softline 700mm x 1800mm Single K1 Radiator 6861 BTU

    • 700 × 1,800 mm
    • 6,861 BTU/h (ΔT not stated)

    Code 239695

    £250.89 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 1800mm Double K2 Radiator 12044 BTU

    Stelrad Softline

    Softline 700mm x 1800mm Double K2 Radiator 12044 BTU

    • 700 × 1,800 mm
    • 12,044 BTU/h (ΔT not stated)

    Code 239708

    £430.22 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 1600mm Single K1 Radiator 6097 BTU

    Stelrad Softline

    Softline 700mm x 1600mm Single K1 Radiator 6097 BTU

    • 700 × 1,600 mm
    • 6,097 BTU/h (ΔT not stated)

    Code 239694

    £222.84 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 1600mm Double K2 Radiator 10706 BTU

    Stelrad Softline

    Softline 700mm x 1600mm Double K2 Radiator 10706 BTU

    • 700 × 1,600 mm
    • 10,706 BTU/h (ΔT not stated)

    Code 239707

    £382.35 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 1400mm Single K1 Radiator 5336 BTU

    Stelrad Softline

    Softline 700mm x 1400mm Single K1 Radiator 5336 BTU

    • 700 × 1,400 mm
    • 5,336 BTU/h (ΔT not stated)

    Code 239693

    £194.94 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 1400mm Double K2 Radiator 9365 BTU

    Stelrad Softline

    Softline 700mm x 1400mm Double K2 Radiator 9365 BTU

    • 700 × 1,400 mm
    • 9,365 BTU/h (ΔT not stated)

    Code 239706

    £334.39 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 1200mm Single K1 Radiator 4572 BTU

    Stelrad Softline

    Softline 700mm x 1200mm Single K1 Radiator 4572 BTU

    • 700 × 1,200 mm
    • 4,572 BTU/h (ΔT not stated)

    Code 239692

    £167.00 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 1200mm Double K2 Radiator 8028 BTU

    Stelrad Softline

    Softline 700mm x 1200mm Double K2 Radiator 8028 BTU

    • 700 × 1,200 mm
    • 8,028 BTU/h (ΔT not stated)

    Code 239705

    £286.53 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 1100mm Single K1 Radiator 4193 BTU

    Stelrad Softline

    Softline 700mm x 1100mm Single K1 Radiator 4193 BTU

    • 700 × 1,100 mm
    • 4,193 BTU/h (ΔT not stated)

    Code 239691

    £153.06 inc. VAT

    Available to order

  • Stelrad Softline 700mm x 1100mm Double K2 Radiator 7359 BTU

    Stelrad Softline

    Softline 700mm x 1100mm Double K2 Radiator 7359 BTU

    • 700 × 1,100 mm
    • 7,359 BTU/h (ΔT not stated)

    Code 239704

    £262.60 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.