20/24/26/28/32/ 40kw Gas Wall Hanging Boiler Blue Stainless Steel Shell Dual Funtion Hot Water Furnace
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Function description of some major accessories:
The role of the fan: The exhaust gas produced during combustion is discharged outdoors, and the fresh air outside is pumped into the combustion chamber, so that the combustion chamber is kept in a state of micro negative pressure and the flue gas is prevented from spreading indoors .


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