Viessmann Vitopend 100-W A1HB 12.0 - 34.0 kW single-circuit gas boiler

Available in duale-circuit and combined versions, hot water boiler with power from 12.0 to 34.0 kW
Equipped with a modulating atmospheric burner with a fan to remove combustion products (with a closed combustion chamber)
The built-in controller with an integrated diagnostic system is supplied in a single module with the boiler
Reliable protection against fluctuations in the gas and electric network
Controller with white backlit digital display
Built-in time relay with a clock mechanism that allows you to set the operating mode by day and week