Which thermostat and receiver should I buy to suit my boiler?

I have a Baxi standard boiler (not combi or system) which heats both my radiators and the water, and I need to replace the thermostat and receiver. The receiver will be wired-in near the boiler but I want a wireless thermostat - not Smart/Internet/phone app etc - just a simple one. I understand that it needs to be a dual-channel set so I can programme both heating and water, and I would like either a 7 day or 5/2 day programme facility. Can you please tell me what I need?