LST Radiators

Low surface temperature (LST) radiators are panel radiators inside a protective casing. Compare LST models from Stelrad, Myson, Purmo and Wallace and Squires by size and output. All the LST radiators we list connect to a wet central heating system, and most are horizontal.

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612 items
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  • Stelrad Lsti Plus 800 x 850 P+ 2562 BTU

    Stelrad Lst

    Lsti Plus 800 x 850 P+ 2562 BTU

    • 800 × 850 mm
    • 2,562 BTU/h (ΔT not stated)

    Code 202553

    £592.59 inc. VAT

    Available to order

  • Stelrad Lsti Plus 800 x 850 K2 3146 BTU

    Stelrad Lst

    Lsti Plus 800 x 850 K2 3146 BTU

    • 800 × 850 mm
    • 3,146 BTU/h (ΔT not stated)

    Code 202529

    £670.91 inc. VAT

    Available to order

  • Stelrad Lsti Plus 800 x 850 K1 1870 BTU

    Stelrad Lst

    Lsti Plus 800 x 850 K1 1870 BTU

    • 800 × 850 mm
    • 1,870 BTU/h (ΔT not stated)

    Code 202505

    £518.20 inc. VAT

    Available to order

  • Stelrad Lsti Plus 650 x 850 P+ 1979 BTU

    Stelrad Lst

    Lsti Plus 650 x 850 P+ 1979 BTU

    • 650 × 850 mm
    • 1,979 BTU/h (ΔT not stated)

    Code 202545

    £511.69 inc. VAT

    Available to order

  • Stelrad Lsti Plus 650 x 850 K2 2446 BTU

    Stelrad Lst

    Lsti Plus 650 x 850 K2 2446 BTU

    • 650 × 850 mm
    • 2,446 BTU/h (ΔT not stated)

    Code 202521

    £566.87 inc. VAT

    Available to order

  • Stelrad Lsti Plus 650 x 850 K1 1484 BTU

    Stelrad Lst

    Lsti Plus 650 x 850 K1 1484 BTU

    • 650 × 850 mm
    • 1,484 BTU/h (ΔT not stated)

    Code 202497

    £520.27 inc. VAT

    Available to order

  • Stelrad Lsti Plus 500 x 850 P+ 1454 BTU

    Stelrad Lst

    Lsti Plus 500 x 850 P+ 1454 BTU

    • 500 × 850 mm
    • 1,454 BTU/h (ΔT not stated)

    Code 202537

    £467.45 inc. VAT

    Available to order

  • Stelrad Lsti Plus 500 x 850 K2 1781 BTU

    Stelrad Lst

    Lsti Plus 500 x 850 K2 1781 BTU

    • 500 × 850 mm
    • 1,781 BTU/h (ΔT not stated)

    Code 202513

    £491.02 inc. VAT

    Available to order

  • Stelrad Lsti Plus 500 x 850 K1 1000 BTU

    Stelrad Lst

    Lsti Plus 500 x 850 K1 1000 BTU

    • 500 × 850 mm
    • 1,000 BTU/h (ΔT not stated)

    Code 202489

    £418.33 inc. VAT

    Available to order

  • Stelrad LST Iplus Deco 800 x 850 P+

    Stelrad Lst

    LST Iplus Deco 800 x 850 P+

    • 800 × 850 mm
    • 2,562 BTU/h (ΔT not stated)

    Code 228225

    £545.82 inc. VAT

    Available to order

  • Stelrad LST Iplus Deco 800 x 850 K2

    Stelrad Lst

    LST Iplus Deco 800 x 850 K2

    • 800 × 850 mm
    • 3,146 BTU/h (ΔT not stated)

    Code 228249

    £617.94 inc. VAT

    Available to order

  • Stelrad LST Iplus Deco 800 x 850 K1

    Stelrad Lst

    LST Iplus Deco 800 x 850 K1

    • 800 × 850 mm
    • 1,870 BTU/h (ΔT not stated)

    Code 228201

    £477.29 inc. VAT

    Available to order

  • Stelrad LST Iplus Deco 650 x 850 P+

    Stelrad Lst

    LST Iplus Deco 650 x 850 P+

    • 650 × 850 mm
    • 1,979 BTU/h (ΔT not stated)

    Code 228217

    £471.28 inc. VAT

    Available to order

  • Stelrad LST Iplus Deco 650 x 850 K2

    Stelrad Lst

    LST Iplus Deco 650 x 850 K2

    • 650 × 850 mm
    • 2,446 BTU/h (ΔT not stated)

    Code 228241

    £522.12 inc. VAT

    Available to order

  • Stelrad LST Iplus Deco 650 x 850 K1

    Stelrad Lst

    LST Iplus Deco 650 x 850 K1

    • 650 × 850 mm
    • 1,484 BTU/h (ΔT not stated)

    Code 228193

    £479.19 inc. VAT

    Available to order

  • Stelrad LST Iplus Deco 500 x 850 P+

    Stelrad Lst

    LST Iplus Deco 500 x 850 P+

    • 500 × 850 mm
    • 1,454 BTU/h (ΔT not stated)

    Code 228209

    £430.56 inc. VAT

    Available to order

  • Stelrad LST Iplus Deco 500 x 850 K2

    Stelrad Lst

    LST Iplus Deco 500 x 850 K2

    • 500 × 850 mm
    • 1,781 BTU/h (ΔT not stated)

    Code 228233

    £452.24 inc. VAT

    Available to order

  • Stelrad LST Iplus Deco 500 x 850 K1

    Stelrad Lst

    LST Iplus Deco 500 x 850 K1

    • 500 × 850 mm
    • 1,000 BTU/h (ΔT not stated)

    Code 228185

    £385.32 inc. VAT

    Available to order

  • Stelrad LST Standard Deco 800 x 760 P+

    Stelrad Lst

    LST Standard Deco 800 x 760 P+

    • 800 × 760 mm
    • 2,562 BTU/h (ΔT not stated)

    Code 228152

    £331.66 inc. VAT

    Available to order

  • Stelrad LST Standard Deco 800 x 760 K2

    Stelrad Lst

    LST Standard Deco 800 x 760 K2

    • 800 × 760 mm
    • 3,146 BTU/h (ΔT not stated)

    Code 228177

    £374.44 inc. VAT

    Available to order

  • Stelrad LST Standard Deco 800 x 760 K1

    Stelrad Lst

    LST Standard Deco 800 x 760 K1

    • 800 × 760 mm
    • 1,870 BTU/h (ΔT not stated)

    Code 228128

    £288.57 inc. VAT

    Available to order

  • Stelrad LST Standard Deco 650 x 760 P+

    Stelrad Lst

    LST Standard Deco 650 x 760 P+

    • 650 × 760 mm
    • 1,979 BTU/h (ΔT not stated)

    Code 228144

    £297.86 inc. VAT

    Available to order

  • Stelrad LST Standard Deco 650 x 760 K2

    Stelrad Lst

    LST Standard Deco 650 x 760 K2

    • 650 × 760 mm
    • 2,446 BTU/h (ΔT not stated)

    Code 228168

    £318.43 inc. VAT

    Available to order

  • Stelrad LST Standard Deco 650 x 760 K1

    Stelrad Lst

    LST Standard Deco 650 x 760 K1

    • 650 × 760 mm
    • 1,484 BTU/h (ΔT not stated)

    Code 228119

    £290.21 inc. VAT

    Available to order

About LST Radiators

How an LST radiator is built

An LST radiator is a panel radiator inside a protective casing. This page does not give surface temperatures, and it does not say where LST radiators are required.

For the surface temperature of a particular model and the conditions it applies to, refer to the manufacturer's data sheet. For advice on where LST radiators are needed, ask a qualified heating engineer or your project's specifier.

The ranges we list

  • Stelrad LST and Stelrad LST Standard: the largest part of this collection, mostly horizontal.
  • Myson LST, LST Super and LST Super Plus: Myson's LST family, often searched by name.
  • Purmo LST: Purmo's LST radiators, listed by panel type.
  • Wallace and Squires Highgate: an LST option in this collection.

Browse the Stelrad collection, the Myson collection or the Purmo collection to see each brand's other radiators.

How to choose

Output

Size an LST radiator from its own listed output, not from the output of the panel inside or of a similar uncovered panel. Get an estimate of the heat the room needs from our BTU calculator, which gives a figure in BTU. 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.

Size

Use the LST product's own dimensions on the product page, then measure the wall and the space in front of it.

Orientation

Most LST radiators are horizontal; a few vertical models are listed.

Installation and specification

Follow the manufacturer's installation instructions for each model. If your project has a specified requirement, confirm it with the specifier and a qualified heating engineer before you order.

Need a shortlist?

The radiator finder can filter by size and output. For larger or specified projects, use the trade enquiry route.