I just purchased an older 3,700 sq ft home with a newer 90+ boiler. However the system is not automated zoned as it has several cast iron registers with manual valves. I do plan on adding a few new circuits to the addition/wings of the structure but would like to avoid re-plumbing the majority of the house to have it properly zoned.
Is there a way to create multiple zones in the house without running individual circuits/loops back to the boiler? Preferable an retrofit-able electric valve that can be added at the register and controlled by a zoned T-stat
I was thinking of building my own automated control valve retrofit to install at the 1st register in each zone. However, I have to believe there is already a device out there and with better finish then what I would come up with. Just how do you take a zone control valve and dress it up? - we leave that one until I decide I have to DIY