Thermal mass as a tool is so very under utilized. When it's considered, it's often only on a 24hr cycle. As you point out, the 365 day cycle may be even more

Thermal mass as a tool is so very under utilized. When it's considered, it's often only on a 24hr cycle. As you point out, the 365 day cycle may be even more important. For a modern take (with for realz engineers and measurements even) have a look at Drake Landing community in southern Alberta. https://www.dlsc.ca/ https://www.dlsc.ca/ edit: They've discontinued the 'Current Conditions' part of their website but I followed it with some regularity in the early years