About the sentinel system

Clean

to prepare for greater performance

"Cleaning a dirty central heating system could save you £124 every year"*

Gastec

The facts

• The Compliance Guide to Part L of the UK Building Regulations now states that when installing a boiler onto a new or existing central heating system, the system should be thoroughly cleaned.
• Cleaning a new system will remove any installation debris and flux residues which if left inside the system will cause corrosion.
• Restoring an old system will remove sludge build-up, improving the efficiency of the system and help save on fuel costs.

*Based on the cost of replacement heat using an electric heater

Protect

to prolong system
life and efficiency

“The absence of correct water treatment can reduce system effectiveness by typically 15%”
Gastec

The facts

• After cleaning, it is important to protect your system from returning scale, corrosion and sludge build-up.
• Both chemical inhibitors and physical system filters are proven to provide ongoing protection for the life of the system.

Maintain

to ensure durable
protection

“1 in 5 households in the UK have suffered a heating breakdown”

uSwitch

The facts

• It is important to ensure that once a system is cleaned and protected it is maintained on an annual basis.
• Many factors can reduce the level of protection of a central heating system, for instance system water losses by the removal of a radiator whilst decorating. We therefore advise checking the quality of water and level of protection annually.