Ventless - no chimney, no gas or electric uired. Easy or no maintenance required. Insulated double layer 3mm stainless steel construction. Low heat transfer - safe ZERO clearance easy Installation. Patented Design & Technology. Dimensions: H 27.5" x W 39.5" x D 16". What's Included: Fireplace Insert - 1pc. Smart Ethanol Burner - 1pc. Glass - 2pcs. Glass Brackets - 8pcs. User's Manual - 1pc.