Quote:
Originally Posted by dewilson58
Variable Speed Unit owners......................do you have Zones???
How much was the up-charge??
With our 2-Stage unit, we have zones set up.
Largest benefit is cooling the bedroom(s) only at night (not the whole house).
If we want to continue with zones, SunKool said that would cost an additional $4500.
(current zone equipment would not work with a new variable speed unit)

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It's been a looong time since I was in the HVAC business, but if you already have a 2 zone system why wouldn't the new equipment work? The zones I assume are set up with your ductwork throughout the house. It used to be done with electrically operated dampers to control where the conditioned air flows. If that's the case, I would imagine the new equipment would not matter if it's variable or 2 stage or single stage. Things may have changed in how systems are zoned but that seems like a lot of money for an upcharge to a 2 zone duct system that is already in place. Good luck.