Morning
 
	I have an anex to my house. 
 
	It's a single room with a radiator. 
 
	The radiator is part of the same circuit as the main house. 
 
	The circuit is on a timer that controls a pump so couple of times a day it switches on. 
 
	This works fine but I am going to be using the anex more and want to fit a room senor that will control the pump based on the temp in that room. 
 
	Ideally a wireless sensor feeding into the current controller. 
 
	Is this possible to do and if so any suggestions of a make. 
 
	I will get a sparky to fit but would like an understanding of it if possible 
 
	Cheers