LST radiators are designed to be long-lasting, safe heating solutions for whatever space they are installed into. To ensure that they are always operating to their full potential, it’s vital that they are properly maintained.

But what’s the best way to do that?

Contour has been blogging about maintaining LST radiators and ensure that they are consistently meeting their expected potential.

Read on to find out more…



The System

 How Do You Maintain LST Radiators | Contour Heating | Shifnal, West Midlands

A clogged up  LST radiator isn’t an efficient one. They can make heating bills higher and take longer to heat up a space.

Heating systems can get congested with rust or dirt which builds up at the bottom of the LST radiator stopping hot water flowing through the system which creates cold patches in the affected areas.

Flushing cleans out the system by driving out the dirt and rust. You should start by pumping clean water into the system to dislodge any initial lumps of rust or dirt.

Once this has been completed specialist cleaning chemicals are added that are designed to target the blockage in the systems. This is flushed through the system to move the build-ups out of the system which is then replaced with clean water.

This process needs to take place several times to ensure a completely refreshed heating system that is totally clean through.

It’s also important to ensure that there is no air in the system as this will cause a build of corrosion and require more flushing to take place.

Signs your heating system needs to be flushed:

  • Brown fluid when you bleed the LST radiators
  • Cold patches on the LST radiator
  • Noisy boiler
  • A heating system taking a long time to warm up



Checking the valves on your LST radiators is a key way to ensure that they are properly maintained.

When radiators are switched off over summer the valves are also not in use. This can cause them to stick in position.

An effective way to overcome this is to turn the system on once every few weeks for a few moments to prevent the valves from sticking in place and therefore ensures that during winter they are in their optimal condition when you really need a fully working heating system.



Radiator Covers

RotaRad Easy Cleaning For LST Radiators | Contour Heating | Shifnal, West Midland

Contour’s Operations And Maintenance manual recommends that LST Radiators are cleaned with a non-abrasive damp cloth or brush without using cleaning agents.

This is because cleaning products could react with the powder coating on our LST radiators which use BioCote® anti-microbial technologies which is 99.99% effective against resistant bacteria such as MRSA and E. Coli.



It’s important to ensure that LST radiators are maintained properly because this prevents them from becoming less efficient or less cost-effective.

Flushing the system rids the LST radiators of dirt and rust build-up that could otherwise compromise the heat output over time.

Checking the valves and running the system once or twice throughout the months when it’s not required means that during winter the system will be fully optimised for its best performance.

It’s also important to clean the LSTs with soft, chemical-free cloths because this protect the powder coating on the surface and ensure that antimicrobial technologies are not interfered with. This ensures that the LST radiators will consistently perform to the highest possible standard.

If you would like to find out more about how Contour LST radiators, fill out the form below and a heating expert will be in touch!


About Us

Contour produces a range of innovative, safe surface temperature systems for healthcare, education, mental health, commercial and secure sectors, working in close partnership and collaborating with architects, M&E engineers, NHS Trusts, local authorities, design consultants and contractors to deliver outstanding safe heating solutions.

Contour is the exclusive partner of BioCote® anti-microbial technology for LST and anti-ligature radiators.  BioCote® additives reduce bacteria by up to 99.9%. Contour combine an extensive range of colour-paints is  with BioCote® for a durable, high-quality finish.

Contour’s heating solutions offer secure, single-person quick access to radiator guard interiors for regular deep cleaning and maintenance.  Each year, Contour save the NHS millions of pounds in cleaning costs, therefore delivering cleaner, safer environments.  Contour is redefining the marketplace and therefore many regard us as a design and innovation leader within the industry.

Contour have a quality- first philosophy. Our customer-focused team possess a ‘can-do’ attitude, they take pride in developing solutions for your heating requirements.

Contact us at:

The Mansions, 43 Broadway Shifnal

Shropshire TF11 8BB United Kingdom

+44 1952 290 498

Twitter: @Contour_Heating

LinkedIn: Contour Heating Products Ltd