Compatibility

[Bill6996]

I have a valiant 415 system boiler potterton controls my thermostat has 4 wires red yellow blue and earth is my system compatible for a nest smart thermostat thanks

[Frustratedddd · Accepted solution]

Any boiler will work, it's who installs the wiring is the question.

You have standard wiring for a thermostat, which doesn't mean anything really.

Simple answer, yes it will work.