An equipment cabinet, comprising: a frame including a bottom portion; a plurality of exterior panels including first and second side panels (16/18), and a rear panel, supported from the frame in vertical orientations to help define an interior area within the equipment cabinet, the rear panel having an opening at an upper end thereof for enabling hot air within the interior area of the equipment cabinet to be expelled from the equipment cabinet; at least one top panel for covering at least a major portion of the equipment cabinet, the top panel including an opening to expel warm air from within the interior area to an ambient environment outside the equipment cabinet; at least one front door (12 or 14) disposed along a front portion of the interior area of the equipment cabinet, the at least one front door being movable between open and closed orientations to enable access to the interior area of the equipment cabinet; at least one of the front door, or the bottom portion or the rear panel including a cool air opening (12a, or 14a or 24a) for enabling cool air to enter the interior area of the equipment cabinet and flow into a lower cool air intake compartment of the equipment cabinet; a baffle structure (36a-36e) disposed within the interior area of the equipment cabinet, and extending laterally between the first and second side panels, the baffle structure forming a barrier that creates a high heat compartment separated from an upper compartment within the interior area of the equipment cabinet; the baffle structure (36a-36e) further configured to cooperate with the at least one front door to form a separate airflow path along the front portion of the interior area of the equipment cabinet, leading into the upper compartment; the baffle structure further configured to channel the hot air generated from an electrical component housed in the high heat compartment upwardly and toward the opening at the upper end of the rear panel, to be expelled through the opening at the upper end of the rear panel to the ambient environment outside the equipment cabinet; and the upper compartment operating to channel the warm air created from an additional electrical component housed in the upper compartment, through the opening in the at least one top panel, to the ambient environment outside the equipment cabinet. a frame including a bottom portion; a plurality of exterior panels including first and second side panels (16/18), and a rear panel, supported from the frame in vertical orientations to help define an interior area within the equipment cabinet, the rear panel having an opening at an upper end thereof for enabling hot air within the interior area of the equipment cabinet to be expelled from the equipment cabinet; at least one top panel for covering at least a major portion of the equipment cabinet, the top panel including an opening to expel warm air from within the interior area to an ambient environment outside the equipment cabinet; at least one front door (12 or 14) disposed along a front portion of the interior area of the equipment cabinet, the at least one front door being movable between open and closed orientations to enable access to the interior area of the equipment cabinet; at least one of the front door, or the bottom portion or the rear panel including a cool air opening (12a, or 14a or 24a) for enabling cool air to enter the interior area of the equipment cabinet and flow into a lower cool air intake compartment of the equipment cabinet; a baffle structure (36a-36e) disposed within the interior area of the equipment cabinet, and extending laterally between the first and second side panels, the baffle structure forming a barrier that creates a high heat compartment separated from an upper compartment within the interior area of the equipment cabinet; the baffle structure (36a-36e) further configured to cooperate with the at least one front door to form a separate airflow path along the front portion of the interior area of the equipment cabinet, leading into the upper compartment; the baffle structure further configured to channel the hot air generated from an electrical component housed in the high heat compartment upwardly and toward the opening at the upper end of the rear panel, to be expelled through the opening at the upper end of the rear panel to the ambient environment outside the equipment cabinet; and the upper compartment operating to channel the warm air created from an additional electrical component housed in the upper compartment, through the opening in the at least one top panel, to the ambient environment outside the equipment cabinet.