How Rheia Works

Static Pressure

The Rheia system utilizes a supply manifold, ducts, fittings, and diffusers that operate as a system at typical static pressures (~.4 in. wc). This ensures no change to equipment design and operation.

Central Returns

Using a central return system improves static pressure management creating a better performing HVAC system. Jump ducts and pass-through ducts ensure correct return static pressure when sized correctly.

Room CFMs

Room airflows are predicted to design requirements while maintaining static pressure limits. Rheia provides better missing of air flow from multiple micro-diffusers in each room, eliminating hot or cold spots.


Rheia ducts terminate in supply boots, each with adjustable dampers for balancing. In addition, the Rheia Verify process makes it easier to balance the home resulting in more consistent room-to-room temperatures.