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  1. H

    I don't want to pay to heat the whole house? How can I completely shut off one zone?

    No, not this time of year. It's called 'dry winter air' for a reason, which you can tell by glancing at a psychometric chart if you can find one that goes far enough off to the left. If it's 0F outside and my controlled space is at 27F it's typical to see RH at around 45%, which is in no way...
  2. H

    I don't want to pay to heat the whole house? How can I completely shut off one zone?

    This is what worked for me. I put a cycle timer on in series with the pump for the cold zone. In my case I run the pump 30 seconds once every half hour, but the space only gets down to the high twenties at the lowest. It's hard to judge what will work in any given circumstance, but it can...
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