The Alfa butterfly valve insert is used to speed up the heating of the oven and to keep the temperature constant inside the combustion chamber. Thanks to this simple yet practical accessory it is possible to manually regulate the air flow inside the cooking chamber. In this way it is easier to manage the temperature, reduce consumption and increase the energy efficiency of your wood-fired or gas pizza oven. Designed to last over time, the Alfa butterfly valve is made of AISI 304 steel to ensure excellent resistance to heat and corrosion. Essential qualities to allow installation on latest generation pizza ovens.