01-31-2022, 12:10 PM
(12-27-2021, 09:45 PM)EdM Wrote: A bit off topic, but with newer technology it's possible to have a 2-pipe system switch to heating over night and cooling during the day. Here's an article on a school retrofit: Two-Pipe HVAC Makes a Comeback: An Idea Discarded Decades Ago May Be the Future of School Heating and Cooling.
"Changeover can be accomplished with very little loss of energy in 20 minutes with no human intervention whatever."
That link was stellar, thank you!
...K

