C397 Kang Kang

Shi Xiaorui thought and thought, and dug out a nearby heating device from her memory: a radiator.

The radiators were basically installed against the wall, using the radiator's hot water to increase the temperature of the house.

Of course, Shi Xiaorui didn't want to challenge someone to invent the radiator, she just suddenly thought that if the smoke escape channel of the kang wasn't exposed