My outdoor kitchen is covered and the ceiling is 9 ft high, but the sides are open. The area is about 12'x20', with half an eating area and the other half kitchen. i also have a patio seating area 14'x20', same ceiling height as the kitchen and walled on 3 sides and one 20' side open. I was wondering if anyone has any experience with heating outdoor areas with infrared heaters? I'm hoping to find a way to extend our outdoor entertaining season. I'm attaching a view of the outdoor kitchen area.