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Old 06-12-2019, 09:49 PM   #11 (permalink)
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I can already hear freebeard typing a link to a dome home :P
I just now found the thread.
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Would it be a bad idea to block the upstairs return, forcing hot air down the stairwell into the basement return to get the air to mix?
I guess this is the question. I'd need a diagram, but it sounds like you're describing a counterflow arrangement where the fan moves air in the direction opposite it's natural tendency. What would force the air down the stairwell?

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Old 06-13-2019, 12:53 AM   #12 (permalink)
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Yeah providing hvac to the spiders isn't good.

Since I have done split heat pumps I will never install a big central air system in another house. I prefer the split units over the big central air systems.
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Old 06-13-2019, 10:58 AM   #13 (permalink)
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They make t'stats that will run the blower 15 minutes per hour when it doesn't call for heating or cooling to help even out the temperature in the house.

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Old 06-13-2019, 11:47 AM   #14 (permalink)
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I've got an Ecobee I need to install.
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Old 06-13-2019, 02:34 PM   #15 (permalink)
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I've got an Ecobee I need to install.
Let us know how you like it. I've been looking for dynamic programmable thermostats but can't decide which one.
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Old 06-14-2019, 02:15 PM   #16 (permalink)
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Let us know how you like it. I've been looking for dynamic programmable thermostats but can't decide which one.
I originally bought the Ecobee4 when I saw it on Slickdeals.net (where I find 90% of the things I buy) and intended it for my rental house. It's unoccupied much of the time, so I figured it made sense to have room occupancy determine if the schedule should run or not.

Since I moved into a house that has both gas heat and AC, I figured I'd just install the new stat here, though I don't want the built in Alexa. There was also something like a $50 utility rebate I received for purchasing it.

Installing the hardware was a breeze. The C (common 24v) wire was sitting in the wall not being used. It was also not hooked up on the control board of the air handler, but stripping the end and connecting it at both the thermostat and air handler ends was simple. 15 minutes to change out the old stat with new.

The horrid part was getting the dam app to work. The t-stat said it connected properly to wifi and registered with Ecobee servers, but the app on my iPhone was asking for the code that was displayed on the Ecobee to pair it. The app wouldn't accept the code saying it was invalid. Online troubleshooting talked about menu items that didn't exist on my Ecobee. Rebooting the T-stat and uninstalling/reinstalling the app didn't help. About 2 hours later I found some obscure and unmentioned menu item on the Ecobee to unregister the device, then run through the setup again which was successful.

I can confirm that simply running the fan and mixing upstairs/downstairs air goes a long way to keeping the upper level cooler, and the lower level warmer. It heated up a couple degrees in the 20 minutes my air handler wasn't running.

There's a couple remote sensors too that can signal heating/cooling to come on. Wish there was a setting that simply ran the blower if the temperature difference between upstairs and downstairs exceeded some limit. At least I can monitor the temperatures and turn the fan on with the app.

Haven't had the unit long enough to say how well I like the other features. Supposedly it works with IFTTT, though I don't know much about that, and I think there's an associated fee.

If I can find an Ecobee3, I'll install that instead, and move the 4 to my rental so they can play with Alexa if they want.
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Old 06-14-2019, 05:38 PM   #17 (permalink)
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I can confirm that simply running the fan and mixing upstairs/downstairs air goes a long way to keeping the upper level cooler, and the lower level warmer. It heated up a couple degrees in the 20 minutes my air handler wasn't running.
Which would happen automagically in a dome. There, are you happy now?

How does the Ecobee 4 compare to Nest? https://duckduckgo.com/?q=nest+thermostat+security+issues
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Old 06-14-2019, 05:51 PM   #18 (permalink)
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My impression was that Nest is like an iPhone, where it thinks it knows best and is simpler to use, with Ecobee being more similar to Android, with increased complexity and configuration.

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