Key facts
- The kang is a heated platform-bed used in northern China for at least 2,000 years.
- It is connected to the kitchen stove, utilizing hot air from cooking for warmth.
- The kang stores heat and releases it slowly, providing sustained warmth.
- This method offers warmth with less fuel compared to modern central heating.
- Poor ventilation of the kang system can pose a carbon monoxide risk.
The kang, a heated platform-bed used in northern China for at least 2,000 years, offers insights into efficient heating methods. Connected to a home's kitchen stove, hot air from cooking circulates through channels beneath the bed, storing heat and releasing it slowly to keep occupants warm. This traditional system provides warmth with less fuel compared to modern central heating, as it doesn't require heating entire rooms. However, the kang requires skill to build and maintain, and inadequate ventilation can lead to carbon monoxide risks. Experts suggest these historical approaches could inform modern strategies for energy-efficient home heating.