esi

Hi everyone, Quick question. I'm installing a wireless room stat to a Rehema Avanta Plus combi-boiler (not sure exactly which model). The ESi room stat has OpenTherm connections and the boiler manual states "The Remeha Avanta Plus has an OpenTherm® interface. This enables our modulating range...

Hi I’ve bought a new build (I know!) and it has two heating zones controlled by ESRPT5 thermostats. the motor valves are in a cupboard upstairs wired into a white box on the wall. I opened the box today to look at the wiring for moving to nest and found this...

almost new boiler and new controls. all 'works' a treat however the controller isnt wired up right as heat is on all the time.. how should it be wired? boiler has E N L rt, controller has E N com no nc?