This document provides specifications for electric glass furnaces made by SOLO Swiss SA. The furnaces, called FF 1000 models, are robustly built from folded sheet steel with multilayer insulation. They have openings assisted by hydraulic cylinders and exhaust vents. Heating is provided by spiral wound resistors on the roof. Models range from 100 to 560 liters in size and 8 to 22 kW in power. Documentation includes CE marking and operating instructions.