Third Generation Nest Heat Link installation to a Vaillant Ecotec Pro 30

[Agile]

There are very few, if any, of the modern premix boilers where a DIYer would be able to connect a Nest as a first time control.

But if there is already a stat then the wires for that could be intercepted outside the boiler case.

Tony

 

[jackthom]

These types of controls are increasingly popular (judging by the number of enquiries on here about fitting the things) and yet there don't seem to be any warnings that one might have to be Gas Safe to fit them -- which depends on the exact type of boiler as on many boilers it would be possible to fit the control without being Gas Safe registered.

Oh well, I'm off to break the law again and do some unregistered electrical work.

It is a ridiculous situation if only gas safe registered engineers can make any sort of electrical connection to one of these boilers. Maybe the OP should get the installers back to remove the internal link and wire up an external junction box, next to the boiler