
Ngaahi meʻapule māfana mouliti lolo ʻo aʻu ki he 200 °C, mo e ngaahi plate heat exchanger mei muli ki he pule vave mo tuʻu maʻu ʻi he māfana māʻolunga.
Naʻe fua ʻa e tuʻunga fakamafana ʻi he taimi naʻe hū mai ai ʻa e lolo vela ʻoku takai ʻi he 175 °C pea hū atu ʻi he 180 °C. Tukuange ʻa e vai ʻoku tuʻu maʻu kapau ʻoku siʻi hifo ʻi he 2 °C ʻa e māfana ʻo e ʻātakai pe ʻe taʻofi fuoloa ʻa e mīsiní, ke ʻoua naʻa poloka ʻi he momokó ʻa e ngaahi paipa kopa. ʻE ala liliu ʻa e ngaahi fakamatala makehe ʻi hono fakaleleiʻi ʻo e koloá ʻo ʻikai tomuʻa fanongonongo.