Is it possible to have 2 thermostats hooked up to one zone valve, and it operate correctly?
What are you trying to do? Your 1st post and I quote,"Is it possible to have 2 thermostats hooked up to 1 zone valve to operate correctly?" The answer is still NO! You then ask if there is a design that will allow a zone valve to operate 2 zones? That answer is also NO. Each zone requires a seperate thermostat and zone valve.
Tom, I'm not trying to "do" anything, I am looking at different senerios conserning zone valves. I do not have a problem with a zone valve, I'm wondering if these 2 or 3 valves can exist in one unit.