Tesy 
BiLight series
A wide range of elegant electric water heaters providing hot household water to several points of use at a time.
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Elegant solutions for hot water at home
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BiLight
The water heaters of the BiLight series have been developed in conformity with the highest European safety standards and quality requirements.
BiLight Slim
With their diameter of 35 or 38 cm, the vertical models of the Bilight Slim series are suitable for installation in narrow spaces.
BiLight with a high-efficient heat exchanger
The electric water heaters of the BiLight Vertical series with inbuilt high-efficiency heat exchanger /extra power serpentine/ are a smart solution for connecting the appliance to a central heating or other similar system. It allows the utilization of alternative sources of heat energy such as solar systems, wood pellet or gas burners, etc.
BiLight with a classic heat exchanger
The electric water heaters of the BiLight range with inbuilt heat exchanger /serpentine/ are a product solution for utilization of alternative sources of heat energy such as solar thermal collectors, gas-burning and solid fuel boilers.
BiLight with two heat exchangers
The electric water heaters of the BiLight Vertical series with two integrated serpentines are a solution allowing the appliance to connect simultaneously to two separate alternative energy sources such as solar systems, wood pellet or gas burners, in addition to using electric power.
BiLight Horizontal
The horizontal Bilight electric water heaters save space in the room and enable installation in alcoves and over doors. The appliances incorporate all up-to-date improvements and technological innovations of TESY.
BiLight Horizontal with heat exchangers
The electric water heaters of the BiLight range with inbuilt high-efficiency heat exchanger /extra power serpentine/ are
a smart solution for connecting the appliance to a central heating or other similar system. It allows the utilization of alternative
sources of heat energy such as solar systems, wood pellet or gas burners, etc
BiLight Inox
Bilight lnox is a modification of the BiLight series of electric water heaters featuring inbuilt water tanks of stainless steel. These appliances are known for their long period of operation.
BiLight Inox Slim
Designed for installation in narrow spaces. BiLight lnox Slim have a smaller diameter 35 cm than the conventional electric water heaters. The appliances feature inbuilt water tanks of stainless steel and are known for their long period of operation.