We’ve categorised our range of solar thermal products using The Sentinel System to help you achieve best practice: clean, protect and maintain to achieve optimum performance.

NOTE: Solar thermal circuits use evacuated tube or plate collectors and should not be confused with solar PV panels which do not require water treatment.

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.

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20L Sentinel R200 Solar Thermal Fluid

R100 Solar Thermal Fluid

R200 Solar System Cleaner 20L

R200 Solar Cleaner

SolarCheck Test Kit

SolarCheck Test Kit