Midpack
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We recently moved into a house with a one AC and one furnace but two zones with two programmable thermostats (and the associated active damper, controller etc.). I’m trying to figure out the most efficient settings for upstairs and downstairs assuming we don’t care about the upstairs temperature. Goal is comfortable downstairs, upstairs can float for overall efficiency as upstairs is only storage.
Any of you with similar HVAC zoned systems and years of experience know?
- All sources we’ve read say the same temp on both isn’t efficient.
- All sources say don’t close off the upstairs unless your heating and cooling is sized to only handle one zone or the other versus whole house. Makes sense from what I’ve read, please do a search if you want to know more.
- Some online experts recommend always set upstairs 2F warmer than main floor whether heating or cooling.
- Some say set upstairs 2F warmer than downstairs for cooling, and 2F cooler when heating. One source suggested a 4F delta.
Any of you with similar HVAC zoned systems and years of experience know?
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