I would start looking at the ductless heat pump systems that are becoming popular now they don't take up much space, have pretty good capacity and are efficient. I have no idea if they can be proportionally controlled or what the temperature hysteresis on them are though, which might be an issue in a room the size of a sheet of plywood.
On Wed, Oct 26, 2016 at 10:58 AM, John Ackermann N8UR <[email protected]> wrote: > On 10/26/2016 1:00 PM, Richard (Rick) Karlquist wrote: > >> On 10/26/2016 8:59 AM, John Ackermann N8UR wrote: >> >>> I may have the opportunity to build a small "clock room" and am >>> considering whether I could make it an environmentally controlled space. >>> I'd like to learn about the options for doing this. >>> >>> The space would probably be 6x8 feet or so, in a basement with one >>> outside wall. >>> >> >> I'm lost with the basic concept here. Help me understand this. >> > > This room would be a large closet in my basement where two racks of > various OCXO, Rb, Cs live. There wouldn't be a lot of in-and-out traffic. > I'm not looking for 0.01 degree regulation -- <1 degree C and a few percent > humidity throughout the year seems a reasonable goal. > > What I envisioned was a very small heat pump or other heating/air-con unit > coupled with some sort of proportional control. I just don't know where to > start looking for that, or what other issues to be thinking about. > > (I know the way time-nuts think, and I recall the great ideas posted here > in the past about using an old refrigerator, or burying standards in a deep > hole -- but this would be wrapped into a bigger construction project that > I'm going to be managing from a distance, so I need to keep it fairly > straight-forward.) > > Thanks, all! > > John > ---- > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follow the instructions there. > -- --Eric _________________________________________ Eric Garner _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
