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TESY EV 10/7 S2 300 65 Indirect Water Heater (Dual Coil) – efficient hot water solution
The TESY EV 10/7 S2 300 65 is an indirect water heater with two heat exchangers designed to work with multiple heat sources such as boilers, heat pumps, and solar systems. The dual-coil system allows simultaneous use of different energy sources, improving overall efficiency.
With a 300-liter tank, this model is ideal for large residential houses, hotels, and commercial facilities with high hot water demand.
Key advantages:
✅ Two heat exchangers
Supports multiple heat sources (boiler + solar or heat pump).
✅ Large 300 L capacity
Suitable for 5–8 people or commercial use.
✅ High heat exchanger performance
Fast water heating even under high demand.
✅ Durable enamel-coated tank
Glass-ceramic protection against corrosion.
✅ Magnesium anode protection
Extends service life.
✅ Electric heater option (TEN)
Backup heating capability.
✅ DHW recirculation support
Instant hot water supply.
Applications:
🔹 Domestic hot water (DHW)
🔹 Large private houses
🔹 Hotels and resorts
🔹 Commercial facilities
🔹 Systems with boilers, heat pumps, and solar systems
Design features:
Type: indirect water heater
Number of heat exchangers: 2
Tank volume: 300 L
Heat exchanger type: spiral coils
Heat exchanger area:
— lower: ~1.21 m²
— upper: ~0.85 m²
Heat exchanger power:
— lower: up to ~46 kW
— upper: up to ~33 kW
Installation: floor-standing, vertical
Shape: cylindrical
Tank material: enamel-coated steel
Protection: magnesium anode
Maximum temperature: up to 95°C
Maximum pressure: up to 8 bar
Insulation: polyurethane foam (~50 mm)
TESY EV 10/7 S2 300 65 – powerful and flexible solution
The TESY EV 10/7 S2 300 65 is a powerful and versatile solution for high-demand systems, offering efficient performance and flexibility with multiple heat sources.