- Joined
- 27 Jan 2008
- Messages
- 23,697
- Reaction score
- 2,670
- Location
- Llanfair Caereinion, Nr Welshpool
- Country
Clearly likely to change make to make both boiler and thermostat used, but I see the two different methods and really not sure which is the best.
So I see have does not connect to ebus, it uses the "heat on demand" protocol to keep boiler running if any TRV head reports it need heat.
Nest, and Tado it seems use OpenTherm and EvoHome needs the addition of the OpenTherm module R8810A101 to work with OpenTherm.
Other makes have their own special but in some cases they don't link to the TRV so only control one room.
When I first heard of OpenTherm I thought it was a great idea, however the advent of the Hive TRV head raises the question is it any better than using the return water to control output?
I hope some one can give benefits of all the systems and show why each should be selected.
So I see have does not connect to ebus, it uses the "heat on demand" protocol to keep boiler running if any TRV head reports it need heat.
Nest, and Tado it seems use OpenTherm and EvoHome needs the addition of the OpenTherm module R8810A101 to work with OpenTherm.
Other makes have their own special but in some cases they don't link to the TRV so only control one room.
When I first heard of OpenTherm I thought it was a great idea, however the advent of the Hive TRV head raises the question is it any better than using the return water to control output?
I hope some one can give benefits of all the systems and show why each should be selected.