These systems use old basic technology but are only sold through dealers. The warranty on the systems is not very good when compared to other brands.
They offer wireless systems that are easy to install and work with the NEST thermostat. They are available for preorders now but do not come in all of the common register sizes. The brand uses state of the art technology and makes it easy for anyone to install but the fact that the dampers use AA batteries could be a hassle to keep up with replacing them.
The TRUEZONE systems are available in traditional wired systems as well as their redlink wireless. They use standard technology but are only sold through authorized dealers and the guarantee is not that good.
This brand is from NORTEK GLOBAL HVAC LLC and is used with all of the brands of heating and cooling systems that NORDYNE manufactures. They use traditional wired technology and their website is not much help.
The HARMONY systems use traditional technology while the iHARMONY systems use WiFi thermostats. The LZP-4 zone systems are a more basic and inexpensive system but they are still only sold and installed through their authorized dealers. The guarantee on these systems is not very good when compared to other brands.
This brand is from ADVECTOR SYSTEMS LLC and features wireless systems that can be bought directly and installed by the average homeowner. They are not "smart" systems and are for systems with ceiling registers only.
These systems use basic technology and are only sold through contractors. Their website is not much help and does not have a stated warranty policy.
This brand is a part of INGERSOLL RAND and offers traditional wired systems. The COMFORTLINK II systems use state of the art modulating dampers and are backed by a good guarantee but they are only installed by authorized dealers.
These systems use basic technology and are only sold through authorized contractors. Their warranty is not as good as other brands.
This brand is from TROLEX CORPORATION. They offer traditional systems with a variety of options for either new construction or retrofit applications. The dampers are available with either traditional or modulating motors and all of the components can be ordered directly through their website.
These systems use basic technology and their warranty is not very good when compared to other brands.