What Causes Facet Syndrome? Facet syndrome is generally the result of the natural aging process. However, the initial cause of arthritis, or facet syndrome, may also be an injury or overuse of the joints in youth. Another possible cause of facet disease is spondylolisthesis, which is when one vertebra â usually in the lumbar spine â slips forward over the lower vertebrae. When the facet joints become inflamed due to injury or age, the result is stiffness and pain.
An energy recovery ventilator (ERV) is a type of mechanical equipment that features a heat exchanger combined with a ventilation system for providing controlled ventilation into a building.
Wet bulb energy recovery: increase efficiency by more than 50% over a standard dry bulb exchanger. The ERUâ¢ (Energy Recovery Unit) is an innovative and technologically advanced design specifically created for applications that require high outside air capacity. The ERU is ideally suited for places with high dry bulb and relatively low wet bulb temperatures such as the Western United States and the Middle East. For applications in colder climates that require heating recovery the ERU can be customized with a ârun around coil system. 0-100% outside air.