Chimney heat reclaimer

In combination with a heating system having a fuel combustion chamber, means for circulating heating fluid from the system to heat said fluid by fuel combustion in said chamber, a chimney and a smoke pipe connecting said combustion chamber to said chimney, means for utilizing heat from the flue gases in said chimney passing from said combustion chamber through said smoke pipe comprising a tubular coil extending vertically in said chimney and having inner and outer coils connected at the top and a pipe connected to the upper end of said coils to form an expansion chamber, said pipe having a support extending over the top of said chimney to support the coil on said chimney, a heat exchange unit through which said heating fluid flows, and liquid passages for said liquid from said tubular coil, lines from said coil in said chimney passing through said smoke pipe and connected to the liquid passages in said heat exchange unit and a motor driven pump in said lines for circulating liquid through said tubular coil and said liquid passages.

In combination with a heating system having a fuel combustion chamber, fluid circulating means for circulating fluid from the system to heat said fluid by fuel combustion in said chamber and emit said heated fluid to said system, a chimney connected to said combustion chamber by a smoke pipe to carry off the heated products of combustion and provide draft for combustion in said chamber, a tubular coil for liquid extending upwardly above the smoke pipe in said chimney, a pipe connected to the top of said coil to form an expansion chamber and a support connected to the upper end of said pipe and supported on the top of said chimney, a heat exchange unit in the circulating fluid from said fluid circulating means and having liquid passage means in heat exchange relation to said circulating fluid to transfer heat from the liquid to said fluid, lines from said coil passing through said smoke pipe to said heat exchange unit to circulate liquid through said coil and said liquid passage means of said heat exchange unit, and a pump in said connecting lines to circulate said liquid through said coil and said liquid passage means, so that said heated liquid from said coil will heat said fluid in said heating system.

In combination with a heating system which includes a fuel combustion chamber, a chimney having a vertical flue and a smoke pipe connecting said combustion chamber to said chimney to carry off products of combustion from said combustion chamber and provide draft for combustion, means for utilizing heat from the flue gases in said chimney emitted from said combustion chamber comprising a tubular coil extending upwardly in said chimney, said coil having a vertical pipe connected at its upper end to form an expansion chamber and a bracket connected to said pipe and supported on said chimney, and a radiating unit having liquid passages and constructed to pass air through the radiating unit for heating a space adjacent said unit, connecting lines passing through said smoke pipe between said passages in said radiating unit and said coil to form a circuit for liquid to circulate through said passages and said coil, a pump in said connecting lines to circulate liquid through said circuit, and means to circulate air through said radiating unit into said space.