Patent ID: 9086220
Filing Date: 2015-07-21
Classification: F24B,F24C

Abstract:
1. An apparatus, comprising: a firebox having a substantially transparent front through which a flame within the firebox may be viewed; and a burner configured to hold a free-flowing liquid fuel to cause the free-flowing liquid fuel to boil and to cause the boiling fuel to burn and produce a flame, wherein the burner is positioned so as to cause the flame from the burning fuel to appear within the firebox and wherein the burner has a bottom and a plurality of adjoining sides, the plurality of adjoining sides defining an upper perimeter having a width and a height, where the ratio between the surface area defined by the upper perimeter and the length defined by the upper perimeter is 6.5:1 to 9.5:1 and wherein the height of the burner is at least 3.2 times its width.