What Is a Rocket Mass Heater? First, let me just start off by saying that as a full-time resident of a very rural community in hardiness Zone 3b, heat is a priority for me — a big one. However, as a ...

[Bigelow Brook Farm] has a cool geodesic dome greenhouse that needs to stay warm in the winter. There are a lot of commercial solutions for greenhouse heating, but if you’re the kind of person who ...