Our mission is to make best practice solutions simple. To achieve optimum performance and reliability for domestic central heating systems, follow our best practice process of clean, protect and maintain whether you’re commissioning a new system or revitalising an old one. The benefits of adhering to this best practice include improved performance, increased energy savings, and longer system life. 

FACT: A cleaned and protected central heating system can be typically 15% more effective than a dirty one, and new systems can be fouled just like old ones.


The Sentinel System: Clean, Protect, Maintain

Best practice, best solution.

Lifetime protection for heating and hot water systems with the best practice process of Clean, Protect, Maintain.

Find out more

Sentinel Eliminator Vortex 300 GRP T-piece

Eliminator Vortex

Protect
1L Sentinel X100 Inhibitor

X100 Inhibitor

Protect
1L Sentinel X400 High Performance Cleaner

X400 High Performance Cleaner

Clean
1 Litre Sentinel X800 Fast Acting Cleaner (Gold Label)

X800 Fast Acting Cleaner

Clean
1 Litre Sentinel X200 Noise Reducer

X200 Noise Reducer

Maintain
1 Litre Sentinel Leak Sealer

Leak Sealer

Maintain

Eliminator

Protect
1 Litre Sentinel X300 Cleaner for New Systems

X300 Cleaner for New Systems

Clean
Sentinel System Filter

System Filter

Protect
5 Litre Sentinel X500 Inhibited Antifreeze

X500 Inhibited Antifreeze

Protect
5 Litre Sentinel Deposit Remover

Deposit Remover

Clean
50ml Sentinel Seal X

Seal X

Maintain
500ml Sentinel X900 Filter Aid

X900 Filter Aid

Protect
1L Sentinel X700 Sanitiser and Biocide

X700 Sanitiser and Biocide

Protect
Sentinel X100 Quick Test Kit front

X100 Quick Test Kit

Maintain
Sentinel Dosing Vessel

Dosing Vessel

Maintain

Eliminator Nano

Protect
Condensafe+

Condensafe+

Maintain
60ml Sentinel X100 Towel Rail Inhibitor

X100 Towel Rail Inhibitor

Protect
SystemCheck

SystemCheck

Maintain
Sentinel X100 Test Kit front

X100 Test Kit

Maintain
Sentinel JetFlush Test Kit

JetFlush Test Kit

Clean
Sentinel Eliminator TotalGuard

Eliminator TotalGuard™

Protect
Sentinel JetFlush Rapid

JetFlush Rapid

Clean
Sentinel Jetflush 4

[Discontinued] JetFlush 4

Clean
BioCheck Test Kit

[DISCONTINUED] BioCheck Test Kit

Maintain
Sentinel Jetflush Junior

[DISCONTINUED] JetFlush Junior

Clean