Imagine a personal heating system that works indoors as well as outdoors, can be taken anywhere, requires little energy, and is independent of any infrastructure. It exists – and is hundreds of years old.
Direct heat production thus offers the possibility to save three times more greenhouse gas emissions and fossil fuels using the same number of windmills, which are also cheaper and more sustainable to build. Hopefully, direct heat production will be given the priority it deserves.
Masonry heaters are space heating devices which work on the principle of burning wood rapidly and storing the resulting heat in a large mass (usually at least 500 kg).
If we rely solely on insulation, solar energy and sustainable architecture, it would take too much time to address the high energy use of buildings.
Restoring the old way of warming would not make sense without new technology.
It would make a lot of sense to restore this old way of warming, especially since modern technology has made it so much more practical, safe and efficient.
Consider, then, that people lived for thousands of years in wintry lands without a thermostat to crank, or without any modern fuel or technology, and obviously did not all freeze to death – nor were they even necessarily uncomfortable.