Evohome is a very wide range of products and very easily screwed up by those not willing to follow the instructions to the letter.
As for what is required, a simple base unit, hot water kit, and t87rf would be a basic entry.
Radiators level control becomes expensive in kit depending on what you have. But I wouldn't give a figure online. I'd "do a Tony" and give you something over the phone based on either a half or a full day of installation time.
If the phone call threw up any issues I'd want to come and have a look.
But, I've been fitting Evohome for along time and lots of houses running it, not least my own which has a full suite installed.
As for what is required, a simple base unit, hot water kit, and t87rf would be a basic entry.
Radiators level control becomes expensive in kit depending on what you have. But I wouldn't give a figure online. I'd "do a Tony" and give you something over the phone based on either a half or a full day of installation time.
If the phone call threw up any issues I'd want to come and have a look.
But, I've been fitting Evohome for along time and lots of houses running it, not least my own which has a full suite installed.