Originally Posted by
MichaelD
I believe you can upgrade from CM to Hometronic, but isn't the hometronic system a bit too expensive? Never been able to find the price, which worries me enough not to bother asking how much!
My plan is to add several room controllers to my new CM zone system, Honeywell have confirmed that you can run at least 3, which will give 6 zone heating, which is fine for me. There may be a limit of 4 room controllers but that would give 8 zones, plus controllers handily close to the rooms you're controlling. Each room controller can have loads of radiator controllers linked to it