Great Deal Furniture Coldwater Outdoor 19&rdquo; Liquid Propane Fire Column 19.50D x 19.50W x 29H Made of magnesium oxide & metal Natural stone in color, compliments most existing dcor - 40,000 BTU No assembly required. Note: Does not include liquid propane tank The Coldwater fire column, featuring 40,000 BTU, is a wonderful addition to any patio. This fire column is sure to provide you and all of your guests with warmth for those mild summer nights.