European Heating (TRV) support options?

[pascal.nohl]

@johnwill1

Possibly just the valve itself.

I don't think so. The valve works perfectly with the Spirit TRV and the mecanical TRV.

[johnwill1]

Fair enough. I would say that the actuator on the Shelly might not push the pin fully in on your valve but if it only happens sometimes that would be unusual.

[djh_wolf]

3 years.

Flawless.

Reliably setting various trv set points

Just an update - works to perfection. The wife is actually beaming. Previously she hated it, but liked the cost savings. Edit. Pics. Inside that double back box, there's a nodemcu connected to a 3v relay controlling when the ac power is able to flow to the thermal actuator. All looks quite slick, to be honest. Also purchased a few momentary buttons. Plan is to have a button on the box to activate a 20 min boost, which is currently only done via software. A light too to show when the valve is ac…

[pascal.nohl]

@johnwill1

not push the pin fully

Yes, I tried to place a small piece of plastic between the pin and the head of the Shelly, but then it shows an error. I also have set the extra force on and calibrated multiple times. It seems to work perfectly for hours, but then at some point the valve stays open. The weird thing is that, even setting heating to off, does not close it. It happens from time to time (once a month) that a spirit gets stuck (mainly the newer ones) but after taking out a battery and restarting it, it works again. This isn't an option for the Shelly, and the Shelly gets stuck after hours.

[Evilborg]

@pascal.nohl

I also have set the extra force on and calibrated multiple times. It seems to work perfectly for hours, but then at some point the valve stays open.

Have you talked to the shelly people about this???

[PPz]

My daughter lives in Belgium. I'm going there to add some smart systems (you obviously know which one). In the meantime, she's installed a Buderus Logamax GB162 boiler (Buderus is now owned by Bosch). Next step? Add [compatible] TRVs.
Radiators are Radson brand (M28 and M30 heads)
@kkossev and others, what's your opinion on these? The SonOff, the Bosch (the second generation is now Zigbee 3.0), or others?
What will be the best TRV for Hubitat?

[kkossev]

I have not found the best TRV yet, still searching…

[djh_wolf]

Konnected, nodemcu, dht22, and one of these:

Summary

Actuator for underfloor Heating 230 V incl. Adapter VA10, Normally Closed, M30x1.5mm https://amzn.eu/d/0cPfHp01

Cost through the floor, reliability through the roof.

[kkossev]

Bosch TRV seems very interesting- it’s specifications include everything that I am looking for :

Bosch Radiator Thermostat II BTH-RA Zigbee compatibility

[dandanache]

Unfortunately, this won't work with Hubitat because the lack of support for Zigbee install codes.

I opened a feature request about this a while back, but yeah... you know how staff responds to these these things: complete silence and you might get it in the release next week, or you might get it in 5 years

[kkossev]

[kkossev]

Excluding the Bosch, next TRV that is full-featured and is not a cheap Tuya device is the POPP TRV : (it already has a custom driver for HE)

Popp 701721 control via MQTT | Zigbee2MQTT

For a future reference : Danfoss Ally TRV working with remote temp sensor

[kkossev]

@PPz the problem with the Sonoff TRVZB automatic reporting was resolved. These are very cheap compared to other (non-Tuya) TRVs, but the performance seems good enough for the price.

[PPz]

I just purchased one unit as a test. Will receive it (in Belgium) next week. I'll be able then to test the unit on my daughter's C-7
Thank you in advance !

[bobbles]

Did you ever get one of the Sonoff TRVZB?
If so, how did it perform?
Noise, battery life etc.

Thanks.

[PPz]

Yes and No :-/
I received one and I gave it to my son-in-law (interested in IoT).
Obviously, he's also lazy. No installation and no tests.
Sorry