Carrier 58VUA is an advanced gas-fired condensing furnace, designed to provide efficient and reliable heating for your home. It features a variable-speed blower motor that adjusts its speed to match the heating demand, saving energy and reducing noise levels. The furnace also has a two-stage gas valve that operates at low and high firing rates, further enhancing efficiency and comfort. Additionally, the 58VUA is equipped with a secondary condensing heat exchanger, which captures additional heat from the exhaust gases, increasing its efficiency even further.