Worth switching to OpenTherm?

[Vertigo]

Hi all,

I currently have a Nest thermostat and a boiler that's compatible with OpenTherm but it's not actually wired up for it.

Given that switching to OpenTherm control seems to be a case of just moving two wires, is it worth doing?

Obv this isn't something I'd do myself, otherwise I'd just try it, but would get my engineer guy to. I'm perfectly capable with wiring and leccy but gas scares the **** out of me

 

[jpaul]

I think it depends how intelligent the boiler is at modulating itself , data on genuine benefits of external temperature compensation seems scant have a glance at below - I'd scanned a while back.
I now think it's/OT benefit is overplayed in reducing on/off states of boiler and associated energy waste.

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/648337/heating-controls-compensation-tpi-bre.pdf