Portable fireplace

Abstract

A portable fireplace for burning combustible fuel includes an outer wall defining a lower portion and a tower portion, an inner wall separated from the outer wall by an air gap and defining a combustion chamber within the lower portion and a chimney within the tower portion. The portable fireplace also includes a fireplace aperture through the outer wall and inner wall, a mantel below the fireplace aperture and projecting outward from the outer wall, a number of inlet ventilation holes in the outer wall, and a number of outlet ventilation holes in the inner wall within the combustion chamber.

What is claimed is: 
     
         1 . A portable fireplace for burning combustible fuel, the portable fireplace comprising:
 an outer wall defining a lower portion and a tower portion;   an inner wall separated from the outer wall by an air gap and defining a combustion chamber within the lower portion and a chimney within the tower portion;   a fireplace aperture through the outer wall and inner wall;   a plurality of inlet ventilation holes configured to draw air from an environment outside the portable fireplace; and   a plurality of outlet ventilation holes in communication with the inlet ventilation holes and the air gap, the plurality of outlet ventilation holes disposed in the inner wall within the combustion chamber below the aperture.   
     
     
         2 . The portable fireplace of  claim 1 , further comprising a base different than the outer wall and disposed at a bottom of the outer wall. 
     
     
         3 . The portable fireplace of  claim 1 , further comprising a flow redirector disposed within the chimney above the fireplace aperture. 
     
     
         4 . The portable fireplace of  claim 1 , further comprising a removable fuel grate disposed within the combustion chamber. 
     
     
         5 . The portable fireplace of  claim 4 , further comprising a removable ash pan disposed below the removable fuel grate. 
     
     
         6 . The portable fireplace of  claim 4 , wherein the inner wall, outer wall, air gap, removable ash pan, and removable fuel grate are configured such that air entering through the plurality of inlet ventilation holes exits through both the plurality of outlet ventilation holes and a plurality of ventilation holes in the removable fuel grate. 
     
     
         7 . The portable fireplace of  claim 6 , wherein air exiting through the plurality of ventilation holes in the removable fuel grate facilitates primary combustion of a fuel disposed on the removable fuel grate. 
     
     
         8 . The portable fireplace of  claim 7 , wherein air exiting through the plurality of outlet ventilation holes supports secondary combustion of gases, smoke, or soot emitted by the fuel. 
     
     
         9 . The portable fireplace of  claim 1 , comprising a mantel disposed below the fireplace aperture and projecting outward from the outer wall. 
     
     
         10 . A method for burning combustible fuel, the method comprising:
 providing a structure comprising:
 an outer wall defining a lower portion and a tower portion; 
 an inner wall separated from the outer wall by an air gap and defining a combustion chamber within the lower portion and a chimney within the tower portion; 
 a fireplace aperture through the outer wall and inner wall; 
 a mantel disposed below the fireplace aperture and projecting outward from the outer wall; 
 a plurality of inlet ventilation holes disposed in the lower portion of the outer wall; 
   drawing air in through the plurality of inlet ventilation holes;   expelling a first portion of the air into a lower portion of the combustion chamber to support primary combustion of a fuel; and   expelling a second portion of the air into an upper portion of the combustion chamber to support secondary combustion of gases, smoke, or soot emitted by the fuel during primary combustion.   
     
     
         11 . The method of  claim 10 , further comprising providing a base different than the outer wall, and positioning a bottom of the outer wall on a top of the base. 
     
     
         12 . The method of  claim 10 , further comprising directing radiant heat with a flow redirector within the chimney above the fireplace aperture. 
     
     
         13 . The method of  claim 10 , further comprising supporting the fuel on a removable fuel grate disposed within the combustion chamber. 
     
     
         14 . The method of  claim 13 , further comprising collecting ash from the primary and secondary combustion in a removable ash pan disposed within the combustion chamber below the removable fuel grate. 
     
     
         15 . The method of  claim 14 , wherein each of the removable fuel grate and the removable ash pan are removable from the combustion chamber via the fireplace aperture. 
     
     
         16 . A system for burning combustible fuel to provide light and heat, the system comprising:
 a double-walled body defining a lower portion and a tower portion;   a combustion chamber disposed within the lower portion;   a chimney disposed within the tower portion;   an air gap disposed between walls of the double-walled body;   a fireplace aperture disposed within the tower portion;   a mantel disposed below the fireplace aperture and projecting outward from the double-walled body;   a plurality of inlet ventilation holes disposed in an outer surface of the lower portion;   a plurality of outlet ventilation holes disposed in an inner surface of the combustion chamber;   a base different than the double-walled body and disposed at a bottom of the double-walled body;   a flow redirector disposed within the chimney above the fireplace aperture;   a removable fuel grate disposed within the combustion chamber; and   a removable ash pan disposed below the removable fuel grate.   
     
     
         17 . The system of  claim 16 , wherein the double-walled body, air gap, removable ask pan, and removable fuel grate are configured such that air entering through the plurality of inlet ventilation holes exits through both the plurality of outlet ventilation holes and a plurality of ventilation holes in the removable fuel grate,
 wherein air exiting through the plurality of ventilation holes in the removable fuel grate facilitates primary combustion of a fuel disposed on the removable fuel grate, and   wherein air exiting through the plurality of outlet ventilation holes supports secondary combustion of gases, smoke, or soot emitted by the fuel.   
     
     
         18 . A portable fireplace for burning combustible fuel, the portable fireplace comprising:
 a lower portion comprising:
 an outer wall; and 
 an inner wall separated from the outer wall by an air gap and defining a combustion chamber; 
 a fuel grate configured to support fuel and defining a portion of the combustion chamber; 
   a chimney disposed above the lower portion, the chimney being arranged to draw smoke from the combustion chamber therethrough;   a fireplace aperture in one of the lower portion and the chimney, the fireplace aperture being disposed at an elevation above the fuel grate and providing visual, lateral access to an interior of the combustion chamber;   an inlet ventilation hole in one of the lower portion and the chimney, the inlet ventilation hole being configured to draw air from outside the portable fireplace and into the air gap between the outer wall and the inner wall;   a first outlet ventilation hole configured to introduce drawn air at an elevation below the fuel grate to feed flames of fuel on the fuel grate and generate a primary burn of the fuel; and   a second outlet ventilation hole disposed in the inner wall to introduce air into the combustion chamber at an elevation above the fuel grate to accommodate a secondary burn of the fuel, the second outlet ventilation hole being in fluid communication with the air gap between the outer wall and the inner wall and with the inlet ventilation hole and configured to provide air for passage through the chimney.   
     
     
         19 . The portable fireplace of  claim 18 , wherein the first outlet ventilation hole is in fluid communication with the inlet ventilation hole. 
     
     
         20 . The portable fireplace of  claim 18 , further comprising a base forming a part of the lower portion, the inlet ventilation hole being disposed on an outer surface of at least one of the outer wall and the base. 
     
     
         21 . The portable fireplace of  claim 18 , further comprising a second inlet ventilation hole, the second inlet ventilation hole being in fluid communication with the first outlet ventilation hole. 
     
     
         22 . The portable fireplace of  claim 18 , wherein the second outlet ventilation hole is disposed at an elevation lower than the fireplace aperture. 
     
     
         23 . The portable fireplace of  claim 18 , wherein the second outlet ventilation hole is disposed at an elevation higher than the fireplace aperture. 
     
     
         24 . A portable fireplace for burning combustible fuel, the portable fireplace comprising:
 an outer wall; and   an inner wall separated from the outer wall by an air gap and defining a combustion chamber;   a fuel grate configured to support fuel and defining a portion of the combustion chamber;   a fireplace aperture through both the inner wall and the outer wall, the fireplace aperture being disposed at an elevation above the fuel grate and providing visual, lateral access to an interior of the combustion chamber;   an open top configured to pass convective heat when fuel is burned on the fuel grate;   a first outlet ventilation hole configured to introduce air into the combustion chamber at an elevation below the fuel grate to feed flames of fuel on the fuel grate and generate a primary burn of the fuel; and   a second outlet ventilation hole disposed at an elevation above the fuel grate to accommodate a secondary burn of the fuel, the second outlet ventilation hole being in fluid communication with the air gap between the outer wall and the inner wall.   
     
     
         25 . The portable fireplace of  claim 24 , comprising an inlet ventilation hole in fluid communication with at least one of the first outlet ventilation hole and the second ventilation outlet hole to draw air used for combustion of fuel on the fuel grate. 
     
     
         26 . The portable fireplace of  claim 24 , wherein the inner wall comprises an infrared reflective surface opposite the fireplace aperture, the infrared reflective surface configured to reflect radiative energy out of the fireplace aperture. 
     
     
         27 . The portable fireplace of  claim 26 , further comprising a reflective redirector facing the infrared reflective surface opposite the fireplace aperture, the reflective redirector configured to reflect radiative energy toward the infrared reflective surface opposite the fireplace aperture.