Fueled by real wood or charcoal, Ooni Karu 16 cooks authentic wood-fired, stone-baked pizza in any outdoor space in just 60 seconds. Ooni Karu 16 is also gas compatible - simply order an Ooni Gas Burner attachment to extend your fuel options(sold separately). Ooni Karu’s custom-designed fuel tray maximizes airflow and delivers a powerful blast of searing flame - load it up with real wood or charcoal, with no excess ash to clean. Ooni Karu 16's Carbon steel shell with high temperature, heat resistant powder-coated finish, with an extra-thick Ooni baking stone and patented flame keeper for maximum heat retention.