LEADER evaporator - Leader in Maple Sugaring Industry since 1888

The double V style grates allows ash to build in the troughs on top of each grate to help insulate the cast iron slightly, while the wide openings at the bottom of the V's allow lots of air to flow through the gaps in the grates, and no coals or ashes will get lodged as they fall through the narrow slots between the top of the V's.  Installed properly these grates are very warp resistant.