Hi John. You might want to look at "precision air conditioning" systems (to use the vendors phraseology) designed for small computer rooms for some ideas ?
I suspect getting close to your temperature spec may be easier than your humidity spec ? There may also be issues getting commercial units permitted / installed / inspected in a residential setting ? As a side note I was impressed with the split unit my residential HVAC contractor installed during a recent Reno in my TV room. The newer units seem to have finer temperature units than the older ones. I don't believe my unit features any humidity control. Hope this is of some interest. Mark Spencer > On 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/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ 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.
