... (mm):15 4.Steam Outlet Dn(mm)15 Product name :Wood Pellet Boiler About product: Main Parameters: Model \ ItemBVFS0.03BVFS0. ... sound and light alarm, indicating fault code, easy maintenance.4. Wood pellet boiler protection devices are safe and reliable. Matching high ... loss, but also increases the boiler thermal efficiency.6. The wood pellet boiler with compact structure, small size, no noise, without ...