On-tube heat exchanger made of 2mm thick austenitic steel with increased reliability.
Designed for heating liquid from flue gases of a stove or fireplace. It is installed as a section of the chimney not far (up to 1m) from the exit from the furnace and is a "pipe in a pipe", in the cavity between which heating occurs.
It is used in conjunction with a storage tank with a volume of 50 to 150 liters, connection with corrugated pipes.
Liquid circulation between the heat exchanger and the storage tank occurs naturally, for this the storage tank branch pipe must be located above the upper point of the heat exchanger.
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