This may be obvious to all of you hot-weather folks, but here in the NorthEast, I have to ask; why not simply use some kind of air conditioning unit like they use in a hotel room? Set it at 80 (or whatever) and forget about it? I turned a historic barn/garage into my plant house with 2 inch thick rigid pink foam boards on the walls, and doubled up (with air space between the layers) in the ceiling. I have not even needed to turn my heater on yet this winter because the lights generate enough ambient heat to keep it where it's comfortable. I agree this is a fantastic thread. Jude (Zone 6a; northeastern coastal Massachusetts) On Sun, Jan 10, 2021 at 9:54 AM Chad Cox via pbs < pbs@lists.pacificbulbsociety.net> wrote: > Bob, > > I do currently have misters set up, and they work all right keeping the > temperature down. But I mostly collect Hippeastrum species and other bulbs > that like to be mostly dry, and I have found that the extra water on them > is not appreciated. Also I have hard water and so when the misters are on > it leaves a white calcium residue on the leaves of the plants below the > misters. Also undesirable. I am considering a “cooling wall” in my new > greenhouse instead of misters. > > Chad in Elverta CA > > Sent from my iPhone > Chad L. Cox, Ph.D. > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > http://lists.pacificbulbsociety.net/cgi-bin/… > Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> > -- The Silent Seed Rare and Unusual plants from around the world. thesilentseed.com _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net>