â¦H-type finned tube can increase the heat exchange area and reduce the of tubes arranged, thus increasing the flue gas flow section, reducing the flue gas velocity, and reducing wear.â¦H-type finned tube can be made into an âHHâ type finned tube, and its structure has good rigidity, which can be used for long tube row conditions.â¦H-shaped fins can achieve the best soot-blowing effect due to the straight channels formed on both sides.â¦The H-type finned tube space is compact, the overall weight is greatly reduced, the cost is reduced, the energy is saved, and the power consumption is low.