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Hi, just after some advice. I am looking to upgrade our heating and hot water system to use smart controls. Any help answering the below questions would be appreciated and set me up for further research.
The house has a Worcester Greenstar 30CDi Classic Regular ErP boiler, hot water tank, and a Honeywell programmer and thermostat.
* Does this boiler support modulation?
* Can it support OpenTherm, and if not, is there an adapter that will make it work with one?
* I had a look online, and taking Tado as an example, for WB boilers, it supports R1 (relay on/off) and HT-Bus (D17). While I understand the simple relay on/off will just turn on the boiler calling for heat, what is the advantage of using the HT-Bus? Is it equivalent to opentherm?
* Is boiler modulation actually that more efficient than using it without? I imagine the real benefits are when weather compensation can be utilised. However I think this boiler will be too old for that, but again maybe if I could get it to work with Tado, or the like, then that becomes an option?
Any thoughts welcome.
Cheers
The house has a Worcester Greenstar 30CDi Classic Regular ErP boiler, hot water tank, and a Honeywell programmer and thermostat.
* Does this boiler support modulation?
* Can it support OpenTherm, and if not, is there an adapter that will make it work with one?
* I had a look online, and taking Tado as an example, for WB boilers, it supports R1 (relay on/off) and HT-Bus (D17). While I understand the simple relay on/off will just turn on the boiler calling for heat, what is the advantage of using the HT-Bus? Is it equivalent to opentherm?
* Is boiler modulation actually that more efficient than using it without? I imagine the real benefits are when weather compensation can be utilised. However I think this boiler will be too old for that, but again maybe if I could get it to work with Tado, or the like, then that becomes an option?
Any thoughts welcome.
Cheers