Agree. I've had an Ecobee 3 since July 2015 and I haven't noticed more than 1-2 events in that time. But it doesn't really keep you from using it locally anyway. I'm curious about the new Premium model and will consider upgrading. Hoping it's compatible with the older remote sensors as I have 4 of them.
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Honeywell T6 Pro z-wave or go control TBZ48
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I would recommend the 2GIG z-wave+ v2 700 thermostat or the GoControl zwave+ thermostat. Both of them provide fine-grained, deltaT based, control over multi-stage equipment. The control offered by these thermostats permits, for eg. optimizing 2-stage cooling for either temperature reduction or dehumidification. This is the same type of control offered by ecobee, or Honeywell’s higher-end WiFi thermostats.
In contrast, Honeywell’s zwave thermostat relies on the number of cycles per hour (CPH) equipment has been run for. I had one of these for 2 years, and was unable to achieve the same comfort levels I had with the ecobee.
There are several threads on this forum between @neonturbo and me trying to figure out a reliable way to convert between CPH and deltaT. Finally, I gave up, and got an unused GoControl from a fellow forum member, and installed it. Within a few days, I was back at the efficiency and comfort I had with the ecobee.
OTOH, if your HVAC equipment is just single-stage, any zwave or zigbee thermostat should be fine.
I have Ecobee 4 for around 2+ years and I am very happy with this one.
This is the only one which can control my Fancoil AC with 3-speed fan motor.
I did not notice any outages but I am sure there was few.
I am also using few Temp Sensors.
So, I am planning to upgrade to this new one as soon as Hubitat Integration
will be upgraded and allows to use new Air Quality built-in sensor(s).
Does it have CO2 sensor? This is not clear from the description.
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It does.
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Very nice. For myself CO2 is the most important sensor.
Should I go ahead and order one assuming integration with HE will
be updated rather sooner?
No ETA on update. Not even sure if they updated their API to include the new features.
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Thank you for the info.
I will wait for the good news to come.
Last time Ecobee updated the API was 2020, so you may be waiting for a while...
Well, it is what it is.
Without an ability to use this new sensor with HE the upgrade does not
make any sense. I am very happy with my current Ecobee 4.
Can I ask why? CO2 is sensed by humans; our normal air has 0.04-0.1% CO2, and we start sensing it at about 0.2-0.3%. Although I suppose having a sensor will help keep indoor levels low.
I worry more about CO, which we cannot sense, and which can be put out by malfunctioning gas furnaces.
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Now I live in condo and CO is not an issue anymore.
I did have a lot of CO detectors when I lived in a house.
I am already using Ecowitt CO2 sensor.
Here in condo with all balcony doors/windows closed CO2 level very quickly
goes above 1500 units (whatever they are). Outdoor level is only
around 420 units. Healthy level should/must not be above 1000 units.
When balcony doors or windows are open CO2 level drops down to around
700 units (almost never drops below).
My automation monitors indoor CO2 level and outdoor Temp/Humidity.
Based on the measurement results HE announces if we should/must
open doors/windows for venting apartment.
I am sinking about adding door/window actuators for automating venting
all the way.
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The units are PPM. I just express it as percent. You are very sensitive if you can pick up 1500 ppm (0.15%). Most humans don't really feel the acidity of carbonic acid until 0.2-0.3%.
Is your ecowitt detector strictly CO2 or does it also do PM2.5 and PM10?
BTW, for anyone else interested, here's a translation of CO2 PPM and its relation to human health
| PPM | Percent | Effect |
|---|---|---|
| 5000 ppm | 0.50% | OSHA permissible limit for 8 hours exposure |
| 10000 ppm | 1% | Possible drowsiness |
| 15000 ppm | 1.50% | Mild respiratory stimulation for some people |
| 30000 ppm | 3% | Respiratory stimulation for all, increased BP, and pulse rate |
| 40000 ppm | 4% | Dangerous! |
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I am using Ecowitt WH45. Yes, it detects PM2.5 and PM10.
It is bit expensive toy but it worth it plus I really like toys.
Plus you will need Ecowitt Gateway.
And I am also using few Ecowitt Temp/Humidity sensors.
They can be used indo0r and/or outdoor.
I also assumed units are PPM.
I just did a quick search for CO2 concentrating in free air and it jumps around 420ppm.
When I was setting up this sensor Ecowitt recommend to put in somewhere outside.
I forgot what range was expected but my reading was 420ppm which was almost in a middle
of the expected range. Now sensor is in the living room/kitchen area and the reading is
around 700ppm min when windows/doors are open and 1800ppm max when windows/doors
are closed for a long time and we both at home.
Now interesting thing.
Somewhere I saw a very similar chart related to human health.
But numbers were 10 times smaller!
I have to find this chart again to make sure I am no mistaken.
But what I can tell you - when CO2 is near 1500 we both do fill
minor drowsiness. For two people feeling something similar
it cannot be just a coincidence.
BTW, I am not constantly monitoring PM2.5 and PM10 levels
with HE automation. Native Ecowitt app is graphing all measured
parameters from all attached sensors.
PM2.5 and PM10 Icons are always Green.
But CO2 shows Green, Yellow and Red Icons.
Anyway I have to recheck all these numbers one more time.
I just found this table.
Maybe Ecowitt makes CO2 Icon Yellow and Red because of this line in
table, second from the bottom:
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