Here we go. The setup was pretty trivial. The setup for the Zooz GPIO Z-Wave adapter for Yellow was trivial. Adding the T6 was trivial too. I had to install 2x Z-Wave smart plugs to extend the network from where the Yellow is to where the thermostat is. I used Leviton Z-Wave smart plugs. Finally I added the automation I wanted this whole thing for. Seems to work ™

The only downside I can see so far is that the T6 doesn’t support multi-speed fan (G1/G2/G3 wiring) so I had to choose one of the speeds while wiring and I can’t use the rest. From what I can tell Ecobee seems to be able to use G1/2/3 but I’m not ready to give up on the ethernet-independent operation T6 and Z-Wave allow to have multiple fan speeds.

Does anyone know if there’s a (non-retail) variant of the T6 that supports multi-speed fan?

I needed some thermostat automation done and I stumbled upon this thread. I just attempted this and it went about as smoothly as I can imagine. If you’re also in need of an offline solution, the Z-Wave version of the Honeywell T6 seems to do the job.

#homeassistant #zwave #thermostat #homeautomation

10 points

This has been my favorite thermostat. I don’t have a C wire nor an easy to add one in, but it’s AA batteries last for several months and has been very reliable.

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2 points

It’s what I use as well — my home was built with a Honeywell Lyric T5 (non-smart), so the wiring harness between the two is identical (including colour), so I just unplugged the T5 and plugged in the T6, did some setup, and it was done.

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2 points
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Does it keep its settings while you swap the batteries?

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1 point
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43 points

The three layers of backplates hurts me.

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19 points

Gotta hide the drywall horror show the HVAC people left. 😅

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7 points

Totally understand. I came back for mine, cleaned it all up, patched, painted and lost all back plating. But again, I totally feel your pain.

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4 points

Some day! :D

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36 points

25°. Lizard man confirmed.

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10 points

Right? I started sweating as soon as I saw the temp in the pic.

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2 points

Sweating over a barmy 25?

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9 points

If it’s anything like my setup (posted in the thread) they’ll have a colder spot in the house, whereas the thermostat is in a warm part of the house.

My Nest heats to 22 degrees C but the whole house temp is a couple degrees lower than that.

When the whole house temp hits 20 the heating is switched off, but looking at the thermostat you’d think we’re heating the house to a silly temp, when in fact there’s a disparity between the thermostat temp and the temp of the whole house.

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4 points
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No, it really is 25° in the two rooms this unit heats up. 🦎

With that said, the temperature rarely falls below 25°C due to the heat coming off of the neighbouring units in the building, unless I open the window. 🥹

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5 points

I’ve got a T6 Z-Wave also, controlling a 2-stage heat pump. I have it connected to HA through Zwave2mqtt. It’s been pretty great except for two things:

A. Changing the time has no effect, as if the clock is read-only due to a hardware issue. I’ve had to set up the daily schedule in HA instead, but it’s probably better that way anyway.

B. I can’t see the stage and aux heat status in HA. Looks like all it exposes is a ‘heating’ or ‘cooling’ state. Anybody know how to get more info?

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