Vaillant VR33 (with Nest) and VR66

[JamesBaby]

You can’t wire two nests in opentherm only one stat in the system

Ah shucks. It means Ill have to do a standard S Plan, system boiler 2 Zone NEST setup.

So now I have a VR66, VR33 and VR10 NTC to off load as it’s no use to me.

Unless, does anyone know of any Opentherm programmer/thermostats that will deal the CH plus HW, and a 2nd upstairs CH zone?

Or equivalent Vaillant controls now that I have eBus routed to near the valves?

 

[ShaunCorbs]

You could do weather comp and run the nests as stnd on off controls

 

[JamesBaby]

You could do weather comp and run the nests as stnd on off controls

Ok, I’ll look into that as well. Thank you.

 

[Bruffy84]

So now I have a VR66, VR33 and VR10 NTC to off load as it’s no use to me.

Did you still want to sell these? I need to buy some. Thanks

Great helpful thread

 

[JamesBaby]

So now I have a VR66, VR33 and VR10 NTC to off load as it’s no use to me.

Did you still want to sell these? I need to buy some. Thanks

Great helpful thread

I Have the VR33 available. I have DM's you.

 

[Vee]

Honeywell Evohome have an Opentherm bridge which can talk to the VR33.