Chapter 529: Look, Those Hearts are on Fire!

"Hiss...."

'Goodness, the iron boiler and high-efficiency boiler are still understandable, but the alchemy furnace…

'It's outrageous.'

Su Mo was tempted when he saw the upgrade routes for the boiler room.

After all, iron seemed much safer in terms of thermal conductivity and maintenance compared to rammed earth.

This was especially true for the later high-efficiency boilers, which could significantly improve the original properties to ensure that the boilers had higher heat conversion efficiency and post-maintenance.

However, Su Mo changed his mind merely five seconds after seeing the words "alchemy furnace".

An alchemy furnace was an indispensable and essential part of the long history of Huaxia!

In the biography of every emperor, there was the shadow of its existence. Even in fairy tales and myths of cultivating immortals, the existence of an alchemy furnace was always included!