Need a smart thermostat for Vaillant boiler

[dilalio]

I'm afraid I would partially disagree with you here.
The Hive is a load compensating smart stat. Utilising learning algorithms to understand how quickly the house warms, together with internet forecasting and information from other users, it can control temperatures far better than a tradition on/off stat.
Some reports suggest they may have up to a 10% efficiency gain over a standard dial stat:

https://www.beama.org.uk/static/7f5ebe31-04e1-470e-9befd249359959d9/15d07ed2-35d0-4c9f-90f958f81e9425f6/Salford-tests-on-load-and-weather-compensation.pdf

Even though it only has on/off control of the boiler, it can use that to implement a long period pulse width modulation - gaining better control and efficiency, but at the expense of increased boiler cycles.

However, since early this year, Hive also now come with OpenTherm support, still of little use to a Vaillant boiler without a VR33, but a further improvement on intelligent load compensation alone.

Thanks, yes. Shouldn't have used the dumb switch phrase.

Don't specify hive because I've not been impressed with the one's I've worked on and had to extend.

Then again, my concern with ALL of these server based controls, that are algorithm dependent, is that manufacturers of them are most certainly being consulted (leaned on?) by government to make them more emissions-friendly, rather than keeping you and yours warm and cozy in the depths of winter!

And this influence will become greater as time goes by.

Who's controlling that flame then?

 

[RandomGrinch]

Who's controlling that flame then?

And, as we've found with 2nd gen Nest recently, Google etc. are ultimately in control, when they turn the servers off!