Abstract: An air handler and an insert for the same are provided. The air handler has a housing, an air conditioning element, and a first air outlet in the housing. The air conditioning element is disposed in an air passage in the housing through which air is moved by a fan. At least one wall of the air passage within the housing tapers the air passage between the air conditioning element and the first air outlet.

Abstract: A multi-zone air handler and method are provided. The multi-zone air handler comprises a housing, at least one return port in the housing, a first outlet port, a second outlet port, a first blower, a second blower, and at least one air conditioning element. The first outlet port of the housing is for coupling to a first duct. The second outlet port of the housing is for coupling to a second duct. The first blower is positioned in the housing to draw a first airflow from at least one of the at least one return ports, into a first air passage within the housing, and out through the first outlet port. The second blower is positioned in the housing to draw a second airflow from at least one of the at least one return ports, into a second air passage within the housing, and out through the second outlet port. The at least one air conditioning element is disposed in the first air passage and the second air passage for conditioning the first airflow and the second airflow.