Arafin H type fin is manufactured with square shaped fins duly seal-welded on carbon steel seamless tubes. The economizers which are produced by this type of fins are used where there is the paucity of space. Fins are fabricated under direct supervision of qualified and experienced engineers to ensure proper contact between the fins and the tubes. No gap is allowed for air between the tube and the fin. So best heat transfer factor is ensured. This type of fin can be produced per the customer's drawings/specifications or tailor made based on the data of boilers/gases provided by the buyers to suit customer equipments.