How’s this for solar gain!
It’s 4:19 on December 23. My outdoor thermometer says 21.0F. I’m in Washington, DC, where the 99% heating design temperature is 21F. Inside my house it’s 71.7F on the first floor, 72.5F on the second floor and 73.6F on the third floor. All of my thermostats are set for 70F. According to my logs the heat has not run in any of the zones since this morning! I have to assume that solar gain (plus occupant activity) are able to keep the house warm on the design day!
Today was clear — but it’s also the second shortest day of the year.
I don’t have a question — I just feel like telling anyone who will listen!
GBA Detail Library
A collection of one thousand construction details organized by climate and house part