An alternative to hot air blowers is air jets that mix the hot air into the occupational zones. See Fig. 8.59.
To avoid generating warmer air layers below the ceiling, air nozzles are utilized to mix the warmer air down into the occupied spaces. This system is well suited for applications where it is important to keep an even temperature throughout the room. It is not suited for rooms with heavy contaminant loads, where zoning is preferable.
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