Telescoping hood fireplace

An improved fireplace comprising, in combination:

• A. a fire support means operable for supporting a fire, including a fireplace base operable to be mounted upon a floor surface and air conduit means within said base for supplying ambient air to the bottom of said fireplace base, and;
• B. a stationary smokepipe operable to be mounted above and in substantial vertical alignment with said fire support means, said stationary smokepipe extending downwardly to a point spaced above an upper platform on said fireplace base, and;
• C. a telescoping hood means, positioned for vertical movement upon the downward extension of said stationary smokepipe, said hood means further comprising an inner stackpipe, concentrically within, and an outer stackpipe, concentrically outside, said smoke pipe with a downwardly open hood extending from said inner stackpipe, wherein said hood is in sealing engagement with bottom surfaces of said inner and outer stackpipes and defines an annular space between the inner and outer stack pipes which space is substantially occupied by the stationary smoke pipe to define a labyrinth seal while it is operable to be adjustably positioned between said upper platform and said point spaced thereabove, wherein said downwardly opening hood further includes a lower edge operable for engaging the upper platform on said fireplace base, and said lower edge includes at least one aperture operable to allow room air to enter within said hood when said hood is lowered upon said upper platform.