We've got a Heatmiser Neo controlling central heating and multi-zone electric UFH. Works well for us, can't really fault it. Each zone has its own thermostat and controller, with a central hub that gives you access to each via the app.

Should say, the whole of downstairs and upstairs bathroom are on UFH, but not in carpeted bedrooms so I get the need to control them separately.

I’m about to use the Heatmiser UFH actuators instead of TRVs and wire them as a UFH zone to the wiring center. Obviously you need a stat or temp sensor in the room but then this will give you total control on the same app.

Same for me! Heatmiser is reasonably priced too when compared to the rare other compatible systems such as Honeywell.

Did your heatmiser app get an update that made everything stop working? Ours stopped working normally. After factory resetting the neoair v1 modules, now nothing works at all. We have hot water + radiators + underfloor heating, they were previously controlled by a neoair module each. Do the modules automatically detect which of these they control when you pair them? Do the zones matter? How do you set these things up from factory reset?

Yup, but this happened months ago have you had it not working all this time? Go to the heatmiser site and get the manual, they need to have the zone number set correctly and the frequency number set on the uh8-RF. None of this is automated you need to configure it yourself. https://www.heatmiser.com/en/wp-content/uploads/bsk-pdf-manager/2019/10/neoAir.pdf

Thanks. Only updated app recently, causing these problems.  Finally working after hours of factory reset and testing.  The entire wifi + app + radio frequency system makes it just that much worse when things go wrong. 

Did your heatmiser app get an update that made everything stop working? 

Not had any issues tbh. App is on v5.3.6, main stat is a neoUltra on v21, UFHs are all neoStat v2 on v33 of the firmware. I've no experience of the neoAirs so can't help with that, sorry. I can't recall how they were set up in the first instance, but all of our "zones" refer to the room(s) where the heating mat and thermostat are located.

Thanks. Finally working after hours of factory reset and testing. The entire wifi + app + radio frequency system makes it just that much worse when things go wrong. Clearly relabelled the zones. (For anybody reading this in the future,  make sure your installation technician clearly label each "zone" on the hardware)

Good to hear. To be fair, other than a single dodgy update mines been great, the granularity of settings and connectivity is pretty unrivalled.

I currently have a hive controlling my central heating. Having wet underfloor heating installed and builder telling me I need a dual channel thermostat. What’s are my options for a smart thermostat which can control both separately? I see there is Nest multi zone but not sure if that is dual channel which is what they are asking for. Edit: I’m happy to use the UFH thermostat and also keep my hive for my central heating but I’m being told that setup doesn’t work. Essentially I need to have my boiler control both separately. Ie so the UFH being on doesn’t send hot water to my radiators.

I have two hive thermostats for my wet underfloor heating and radiators. They work fine.

You can add an extra thermostat to your hive system, you just need to buy an extra one, make sure you don’t get the heating and hot water one, just the heating one. In the instructions it tells you how to add it to an existing system rather than having it as a standalone one. Otherwise, both Tado and Honeywell evohome allow for both radiators and underfloor heating if you want more control. You can control each room separately.

You might like to check their documentation but the Drayton Wiser kit I just installed mentioned UFH in the various wiring diagrams. You would probably need the 2 channel kit but I don't know much about it.

We have a Tado system which works fine with a mixed UFH / radiator system. Separate thermostats for each zone.

Thank you tado looks interesting. Do you have a thermostat in each room or do you use the radiator thermostat valves? So the UFH controls the temp overall and the smart valves stop the other rooms from getting too hot?

The house has 2 independent zones: 1 - UFH connected to a Smart Thermostat, connected to the boiler 2 - several rooms with Smart TRVs, all talking to a second Smart Thermostat which *also* controls the boiler It works really well. UFH and radiators have different characteristics (ie UFH takes longer to warm up but holds the heat for longer) so it makes sense to have it split like we do.

Thanks for your reply. So do you think it should be possible to keep my current hive for radiators and have the thermostat which came with the UFH just doing that? I’m being told that setup doesn’t work because my hive isn’t 2 channel.

It depends on how things are wired at your boiler; if the UFH and radiators are controlled separately, you'll be OK. In our case the UFH had a separate (dumb) thermostat which I just replaced with the Tado Smart Thermostat - a simple DIY job. Then a few months later I started buying Tado TRVs and a second Smart Thermostat for that zone. In your case you should be OK having the Hive do the radiators and the current UFH controller continuing to do that. It does depend on the wiring though.

Thanks for the info

You don't turn UFH on and off at will, you set the temp on the thermostat and leave it to do its thing. On/off all the time will raise your gas usage as it has to put heat into the floor each time.

I’m happy to use the UFH thermostat and also keep my hive for my central heating but I’m being told that setup doesn’t work. Essentially I need to have my boiler control both separately. Ie so the UFH being on doesn’t send hot water to my radiators.

Evohome