Viessmann Vitopend 100-W A1JB 12.0 - 34.0 kW duale-circuit gas boiler

Available in single-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
High comfort of hot water preparation due to the integrated plate heat exchanger in the combi boiler, which ensures a constant flow temperature
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