Sonoff TH16/Sonoff Smart Socket or Hive?

Cushie Butterfield

This is more or less the same query as this thread: https://www.boards.ie/vbulletin/showthread.php?t=2058025369 (Recommend a basic on/off remote C/H)

The situation is an old neighbour (elderly) who I visit regularly has an OFCH system & wants to be able for someone (more than likely me) to be able to switch on & off the heating remotely when he's away over the wintertime depending on the weather.

He already has a Hive hub set up with bulbs & sockets connected & is considering buying a receiver to replace his existing thermostat & a hive thermostat on Adverts or whatever & getting an electrician to install, but naturally if there was a cheaper option he'd prefer to go for it.

My knowledge is very limited so please bear with me...In the thread I linked to above the poster got a couple of suggestions - Sonoff TH16 or Sonoff Smart Socket. I know the TH16 would need an electrician to connect up, & the Smart Socket sounds too good to be true!. I'm already a bit confused as there are two sockets in his boilerhouse (marked Pump and Burner plus a switch that seemingly powers the system off), the poster in the other thread seems to say they only needed one Smart Socket. I'm presuming that that system is different to the one I'm asking about

My questions are
- Is the system (Grant Euroflame Outdoor Condenser boiler coupled with a Landis and Staefa RWB7 - pics below) suitable for a Hive receiver & thermostat to be added to his existing Hive setup?

- Would either of the Sonoff options be suitable & if so is one 'safer' than the other or would Hive be the best way to go (if compatible)?


Link to full image for above pic: https://imgur.com/xFuz3U6
The socket on the left is marked Pump & the one on the right is marked Burner. The switch on top as far as he knows is an ON/OFF switch for the system.


Link to full image for above pic: https://imgur.com/4HwVMwd



Link to full image for above pic: https://imgur.com/1Prxlos


Link to full image for above pic: https://imgur.com/vxogYvV




The above two are of the timeswitch, which is a Landis and Staefa RWB7 located inside the house & connected to the fuseboard.

Stoner

It looks like you've one timeclock to control all the heating.

One zone

It's the switched live on on the timeclock that you can focus on.

Without reading too much into everything else you have, I'd imagine one simple sonoff wired in parallel with the timeclock will do the trick.

When in parallel both the timeclock and the sonoff will switch the heating on

To just use the sonoff to turn on and off the heating you turn the timeclock into off more.

The parallel method will not turn the heating off via the sonoff if the timeclock is holding it open at the same time.

Cushie Butterfield

Yes it's one zone. Thanks a lot for the advice Stoner. Much appreciated.