Chisinau, str. Burebista 110 
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Installment plan for individuals and legal entities 
TESY EV 300L S12 65 1SP is a highly efficient floor-standing buffer tank with a capacity of 300 liters, equipped with a single high-performance heat exchanger (1SP). It is designed for heating and DHW systems with one primary heat source. Thanks to its large volume, enhanced insulation and CrystalTech PRO coating, the model provides a stable supply of hot water for both residential and commercial applications.
Steel tank with CrystalTech PRO enamel
The inner surface of the cylindrical tank is coated with advanced glass-ceramic enamel:
▪️ resistant to corrosion and aggressive environments,
▪️ capable of withstanding high temperatures,
▪️ significantly extends equipment lifespan.
CrystalTech PRO is one of the best coating technologies for large-capacity heating tanks.
High-efficiency PU insulation — 50 mm
The dense polyurethane insulation:
▪️ reduces heat loss,
▪️ maintains stable water temperature for extended periods,
▪️ meets ERP B/C energy-efficiency standards.
Even with the heat source turned off, the water remains hot for many hours.
Large-surface single heat exchanger
The model features a large heating coil that:
▪️ ensures fast and uniform heating of the entire hot-water volume,
▪️ works efficiently with gas, electric, diesel boilers and heat pumps,
▪️ is suitable for underfloor heating and radiator circuits.
Support for combined heating
Optionally, an electric heater (TEN) of 3–15 kW can be installed to:
▪️ provide hot water in summer without running the heating system,
▪️ operate the tank as an electric boiler,
▪️ increase heating speed during peak consumption.
MG+ magnesium-anode protection
Two MG+ magnesium anodes protect the internal walls by:
▪️ reducing scale formation,
▪️ preventing corrosion,
▪️ extending the lifespan of the system and heat exchanger.
Easy installation and maintenance
▪️ vertical floor-standing installation,
▪️ large-diameter service opening,
▪️ pocket for temperature sensors,
▪️ thermostat mounting port,
▪️ durable PVC outer casing resistant to shocks, moisture and UV.
Where TESY EV 300L is used
▪️ private homes 120–250 m²,
▪️ boiler rooms with a single heat source,
▪️ DHW systems with high consumption,
▪️ hotels, service stations, workshops, cafés, industrial spaces.
| Maximum working temperature, °С: | 95 |
| Volume, l: | 300 |
| Maximum pressure, bar: | 8 |
| Heating method: | Indirect |
| Energy efficiency class: | B |
| Control type: | Mechanic |
| Magnesium anode: | Yes |
| Height, mm: | 1563 |
| Width, mm: | 650 |
| Installation method: | Vertical |
| Destination: | Water heating |
| Inner tank coating: | Enamel |
| Heat exchanger capacity S1, l: | 8,8 |
| Coutry of brand: | Bulgaria |
| Insulation thickness, mm: | 50 |
| Heat exchanger surface, m2: | 1,45 |
| Weight, kg: | 95,0 |
| Safety valve: | Yes |
Product catalog 
