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HydroMAX 15 is a multi-award-winning hydronic system additive independently proven to reduce space heating energy consumption by up to 15%. Compatible with any hydronic heating, chilled loop, or process system containing water or glycol solutions — including boilers, heat pumps, and geothermal systems.
Made & Engineered in England.
Typical Return on Investment 1.5 Years Most installations pay for themselves within 1.5 years — then keep saving year after year.

Water has naturally high surface tension, which limits thermal contact with heat exchanger surfaces and reduces system efficiency. HydroMAX 15 lowers that surface tension, allowing heat to transfer more effectively — so your system heats up faster, runs shorter cycles, and uses less energy.


Just 1% of total system volume — that’s all it takes.
One simple addition. Lasting energy savings.
HydroMAX 15 requires no system downtime and installs in just 10–15 minutes, like a standard inhibitor. Add it once and let it work continuously to improve heat transfer efficiency throughout the life of your system.
HydroMAX 15 has been rigorously tested across multiple third-party research facilities. Its energy-saving claims are not manufacturer estimates — they are confirmed by independent laboratory testing. It carries compatibility certifications with leading boiler and inhibitor brands.
HydroMAX 15 is a recognized, multi-award-winning innovation in hydronic system efficiency — trusted by HVAC professionals across North America.
Made & Engineered in England — built to the highest British engineering standards and independently validated by leading European and American research institutions.
HydroMAX 15 works with virtually any closed-loop hydronic system, including: