hi, had a new green star boiler fitted by my ex last year he came down 4 hr drive fitted the thing in one day I left to go to night shift while he was still doing it. I can't turn the thing off as in heating in summer I poured over the manual for weeks looking for a clue - I don't want heating on in London n summer! Could not seem to turn the bugger off - mystery solved when ex finally pipes up & tells me you can't turn it off till you get a wall thermostat - oh thanks my eyeballs have been hanging out of my head my brain is numbed by reading that bloody manual cover to cover! Anyway summer I turned off all radiator valves just left towel rail on - didn't seem to use much gas, now it's winter I'm blindly upping & downing the C readings in the boiler looking for right output temp. I believe the numbers I see on boiler LCD display are internal temp of boiler! Not external temp of room ? Oh I'm confused but in a long boring & winding way I've now realised I need a wall thermostat - I want a wireless one - anyone know the best for a Worcester green star boiler & also maybe stupid question but do I need an electrician or a plumber/gas engineer to instal the thing? Any help most appreciated thanks