Abstract: An energy recovery device particularly for heating or industrial systems that entail the combustion of products, comprising a tubular element, which is arranged at a flue or stack and has a coil which is perforated along its extension. The coil is connected to a delivery tube for the treatment water for scrubbing the exhaust gases. The tubular element has an outlet for collecting the treatment water, which can be conveyed to a recuperator/heat exchanger. The device makes it possible to reduce the emission of particulates and pollutants into the environment and reduces the temperature of the exhaust gases besides allowing heat energy recovery.

Abstract: An energy recovery apparatus for heating or industrial systems that entail the combustion of products, comprises a tubular element, which is arranged at a portion of a stack or flue and is provided with a delivery for feeding water for scrubbing exhaust gases. The tubular element has an outlet for collecting the treated water that can be conveyed to a heat exchanger. The apparatus allows reduction of the emission of particulates and pollutants into the environment and makes it possible to achieve a reduction in the temperature of the exhaust gases as well as heat energy recovery.

Abstract: A heat recovery device, particularly for reducing energy consumption in heating sanitary water for residential use or for industrial use by reducing the temperature of the combustion gases and of the particles dispersed by stacks of heating boilers. The device consists of a tubular element, which has an inlet for the water drawn from the aqueduct, which flows along a coil of tubes up to the exit toward the heating boiler. The tubular element also has an opening for the inflow of the combustion gases that arrive from the heating boiler and exit through a second opening after flowing around the coil that contains the water drawn from the aqueduct. The device thus allows savings in heating water for domestic and industrial uses and also allows a reduction in the emission of fine particles.