[time-nuts] Temp/Humidity control systems?

[Bob Stewart]

Hi John,
Have you looked into walk-in humidors to see if there are any ideas there that you could use?  Yeah, those use high levels of humidity, but there might be something in common with your needs.

Bob
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      From: John Ackermann N8UR <jra at febo.com>
 To: time-nuts at febo.com 
 Sent: Wednesday, October 26, 2016 12:58 PM
 Subject: Re: [time-nuts] Temp/Humidity control systems?
   
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
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