Accumulation Tank

As the heart of hot water systems, FENNEX Storage Tanks not only store energy but also ensure it is preserved in the most efficient and hygienic way. They store energy from plate heat exchangers or various heat sources with high efficiency for peak consumption hours.

Much more than just an ordinary storage tank; with FENNEX engineering, safety is built into every drop:

100% Hygiene and Legionella Protection: The problem of “cold water remaining at the bottom” found in standard tanks creates an ideal environment for bacterial growth. FENNEX designs physically prevent bacterial risks (especially Legionella) by ensuring the water heats evenly starting from the very bottom of the tank.
FEN-X PLUS DEFENDER Coating Technology: The interior surface of our tanks is protected by a three-layer flexible coating developed by FENNEX, rather than brittle enamel. This technology fully accommodates thermal expansion and contraction during heating and cooling; it does not crack and is impervious to corrosion (rusting).
Full Capacity Utilization: Thanks to its advanced design, all the water inside the tank is actively heated. As a result, a 1,000-liter FENNEX tank delivers 130% the performance of a standard tank on the market.
Superior Thermal Insulation: Our high-density insulation layer (44 kg/m³) retains the water’s heat for days, reducing your energy costs by up to 25%.

Technical Specifications	FENNEX Standard
Capacity Range	A wide range of options from 100 litres to 10,000 litres
Operating Pressure	10 bar (High safety margin)
Test Pressure	Factory-issued 13 bar leak-tightness certification
Corrosion Protection	Double-layer protection with magnesium anode rods
Adaptation	Full integration with plate heat exchangers, boilers, solar energy systems and heat pumps

"We don’t just store energy; we preserve it for the future in its safest and most efficient form."