TRVs in North America

Hi all. So… I need a little help. I’ve search the forums and read everything I could find, but still haven’t come up with an adequate solution.

I’m in North America and I’m looking to add automation to my hydronic heating, but I’ve run into problems. Specifically I’d like to add TRVs to my radiators. I live in NYC are we mostly use hydronic heating and free standing radiators. The big ones from 125 year ago. Most of America uses forced air so a lot of the products common in the EU aren’t here.

I can’t find US distributors for Tado or Netamo etc. I can obviously have some shipped to the US, but I’m a little concerned about the cloud services working properly here. Although I know Tado is trying to enter the market.

As and alternative I was interested in Z-Wave solutions like the Danfoss LC-13 or the Eurotronic Spirit TRV, but only now realized that the EU and US are on different Z-wave frequencies. I’ve looked into Zigbee solutions but I haven’t found much or they seem reliant on an app.

So my question: Considering I’m in the US and need about 13 TRVs, are there other solutions I’m missing, or is it better to just go with one of these more polished companies (Tado or Netamo) because they seem to be Wifi and will more likely work?

I’m currently have a Nest (very willing to getting rid of it because I was too late to get HA integration). I’d actually love for HA to control everything and not rely on any cloud service. I mainly want to TRVs to regulate the temperatures on different floors (3 floors) and to control some of the smaller rooms that easily run 10 degrees hotter when the boiler is on.

Any help will be appreciated. I know this topic comes up a lot, but it’s a very different challenge in the US because of the standards and market. Example, I need to replace my current radiator valves first (they are manual shutoff valves) with Thermostatic Radiator Valves and then add the TRV head. The valve needs to fit my 125 year old pipes that are imperial sizes, and the TRV head (metric) needs to fit on top of it.

Thanks

I’m in the same boat and interested in the same solution so I’ll be watching here too.

I bit the bullet and ordered some components from the EU. Once they have arrived and I’ve installed them I’ll post an update to let you know how things go.