There has been a lot of publicity about 3D printed housing lately, and it is not surprising because the notion seems almost unbelievable. What is not to like about being able to almost instantaneously convert practically any plan into reality for very little money? This article from fastcompany.com describes such housing that is being developed for masses of poor people in El Salvador and other third world countries. They claim that this can be done for under $4000 per house!
Heating with the Sun
Using the sun to heat your house has got to be the most economical and ecologically benign way to keep comfortable when the temperatures drop. There are a number of common strategies for doing this. My favorite method is passive solar design, where there are no “active” fans or pumps to contend with. Most passive … Read more