I Putu Aris Eka Saputra, Sucipta M, Hendra Wijaksana. Performance Evaluation of a Heat Recovery System Combined with a Helical-Type Heat Exchanger as a Water Heater. Nat Sci Eng Tech Jour [Internet]. 2023Jan.27 [cited 2025Aug.17];3(1):190-4. Available from: https://www.nasetjournal.com/index.php/nasetjournal/article/view/35