WPPO Karma wood fired ovens are built to last and perform with 304-grade stainless steel construction, double-walled ovens, 1 1/4-inch thick thermal retention baking stone oven deck and lo pro design to drive heat into the deck. The WPPO Karma 42 offers a whopping 1,118 square-inch cooking surface with thick tight woven fire blanket insulation in the upper section. A thermometer built into the face of the oven allows you to check internal air temperature at any time. The oven is supported by four heavy-duty adjustable pedestal feet to ensure level placement.