SPC-3827 Vesta G90 gas fired evaporator. Evaporator uses an AL-6XN retort with a burner mounted at the high end of the evaporator. Combustion chamber reaches temperatures up 2100° F to heat fluid to a maximum temp of 215° F. Uses a Webster Cyclonetic natural gas burner. Model 1BIG-02-RM7895A. Serial # U571811A-01-1. Maximum 1500 mbtu/hr. Minimum 811 mbtu/hr. Overall dimensions are 119" wide x 83" long x 122" high. Requires liquid propane gas and 480 vac 3 phase electrical supplies.