Autonomous boiler TESY EV 15/7S2 500 75

TESY EV 500L 15/7 S2 2SP is a large floor-standing vertical buffer tank with a capacity of 500 liters, designed for high-power heating systems. Thanks to its two heat exchangers, advanced insulation and premium anti-corrosion protection, this model delivers maximum efficiency for large houses, cottages and commercial facilities.

Premium steel enamel-coated tank

The tank is manufactured from high-quality steel with CrystalTech PRO multilayer enamel, providing:

▪️ resistance to continuous thermal loads,
▪️ complete protection against rust and chemical reactions,
▪️ full hygienic safety for contact with water.

It is one of the most durable coatings available on the buffer-tank market.

Two powerful heat exchangers (S2)

▪️ allow the simultaneous connection of two heat sources,
▪️ ideal for systems combining solar collectors + boiler / electric heater / heat pump,
▪️ ensure high efficiency even with increased thermal demand,
▪️ accelerate heating of the 500-liter volume to operating temperature.

Next-generation thermal insulation

The tank is equipped with 50-mm CFC-FREE polyurethane insulation, ensuring minimal heat loss and high energy efficiency (ERP class C for 500 liters).

Functional construction for professional installation

▪️ floor-standing vertical installation,
▪️ top-positioned hydraulic connections — ideal for boiler rooms,
▪️ large service flange for maintenance,
▪️ recirculation inlet,
▪️ pockets for sensors and thermostats,
▪️ option to install a high-power electric heater (3–9 kW).

Reinforced anti-corrosion protection

▪️ two MG+ magnesium anodes,
▪️ extended tank lifespan, especially in systems with hard water,
▪️ easy anode replacement thanks to top access.

Additional advantages

▪️ modern PVC casing — resistant to impacts, moisture and temperature,
▪️ external temperature indicator,
▪️ stainless steel components,
▪️ TESY European-quality assembly.

Suitable for:

▪️ large houses and cottages 250–500 m²,
▪️ multi-source systems with boilers, solar collectors, electric heaters, heat pumps,
▪️ commercial spaces: hostels, workshops, mini-hotels, restaurants,
▪️ facilities with a high demand for DHW and heating.