The Efficient Home Forum

Hi everyone, I recently installed a Honeywell T6 thermostat and connected it to my boiler using OpenTherm; but I’m having trouble getting the system to function correctly. :geek: The thermostat seems to be communicating with the boiler; but the temperature control is inconsistent—it either ove ...

Yes, you can integrate OpenTherm with your S-plan system using the VR33 module for your Vaillant boiler. Replace the heating BDR91 with the R8810 OpenTherm bridge to control the heating. Keep the hot water BDR91 and valve as is. The boiler will modulate its temperature based on demand through ...

I have gone through this post which definitely helped me out a lot as a new member I am looking forward for more such discussions.