The Buderus Logano GA124 Gas Boiler is a sealed combustion boiler, which means it uses out side air for combustion instead of taking heated air from the home. The Buderus Logano GA124 Gas Boiler is available in three models which have heating capacities ranging from 59,000 to 104,000 BTU/Hr with efficiencies between 85 and 85.2% […]