Selection of buried air ducts for the blower in 20t gas boilers
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The fan of the burner in the 20t gas boiler features a split structure, with the air ducts buried underground. I wonder what material the air intake ducts used by others are made of? Is it steel pipe, fiberglass-reinforced plastic, cement, or some other type of pipe? Which one is better? Should the specifications be standard? I’d like to ask everyone for advice!
Steel air ducts are manufactured using ordinary carbon steel. Be careful to prevent water leakage and air leakage. At the elbow, ensure a smooth transition.