The Monigo C-View STIO is a self contained Indoor/Outdoor See-through fireplace for commercial and high end residential projects. Has safe to touch glass on both sides, no heat output into interior and self contained exhaust system that vents outside. The unit offers big flames and also makes a great patio heater for those chilly nights. Glass heights can be customized from 20″ to up to 60″ for that tall window feel with fire below. Larger models available up to 13′ long.