Originally Posted by
CraziFuzzy
Some other mini-chiller companies are Waterfurnace and Multiaqua. I think the biggest advantage of chilled water is going to be the zoning and elimination of ducting. A few in-wall or in-ceiling fancoils are all that is needed. If done with domestic water for heating, you can even have perfect humidity control.
If the direct unico dealer doesn't end up working out, another option might be to look into an outfit that does both commercial and residential - they may be able to work between the different sides of their shop to put together a great system for you. Because of the rare nature of the work, first cost may end up being higher, but then end returns will be excellent comfort, and upper tier efficiency. To help steer them in a proper direction, some key components would be a few different zoned fan coils, a single chiller, and a buffer tank to stretch out cycling time of the chiller. Insulated PEX tubing is very versatile and useful for this type of system. Other key benefits of using a hot water heating/reheating system is, you can work it with the domestic hot water, and get the benefits of continually circulated hot water as well, for that good instant hot effect.