A system comprising: a compressor including a compressor inlet and a compressor extraction outlet; an inlet system fluidly connected to the compressor, the inlet system including: a plenum including a first end portion that extends to a second end portion through an intermediate portion; the first end portion is orientated in a direction substantially parallel to a centerline of the compressor and defines an inlet for receiving ambient air; and the second end portion is orientated in a direction substantially perpendicular to the centerline of the compressor and defines an outlet that directs the ambient air towards the compressor inlet; and a silencer fluidly connected within the inlet system and orientated such that an upstream portion faces the first end portion and a downstream portion faces the second end portion; and a heating system including a single conduit located within the second end portion and adjacent to the silencer, wherein the single conduit extends horizontally through the second end portion and is arranged in a substantially horizontal relationship, the single conduit includes a first end section, a second end section and an intermediate section, at least one of the first and second end sections is fluidly connected to the compressor extraction outlet, wherein the single conduit includes a plurality of outlet openings through which the heated air from the compressor extraction outlet flows into the plenum, and wherein heated air from the compressor extraction outlet passes through the single conduit and raises a temperature of ambient air passing through the plenum and then into the compressor inlet; characterized in that fluidly connected portions of the single conduit form an integrated structure with the plurality of outlet openings arranged around in which the integrated structure comprises a straight segment, a first curved segment and a second curved segment, wherein a first end of the straight segment is connected by the first curved segment to the compressor extraction outlet, and wherein a second end of the straight segment is connected by the second curved segment to the compressor extraction outlet. a compressor including a compressor inlet and a compressor extraction outlet; an inlet system fluidly connected to the compressor, the inlet system including: a plenum including a first end portion that extends to a second end portion through an intermediate portion; the first end portion is orientated in a direction substantially parallel to a centerline of the compressor and defines an inlet for receiving ambient air; and the second end portion is orientated in a direction substantially perpendicular to the centerline of the compressor and defines an outlet that directs the ambient air towards the compressor inlet; and a silencer fluidly connected within the inlet system and orientated such that an upstream portion faces the first end portion and a downstream portion faces the second end portion; and a plenum including a first end portion that extends to a second end portion through an intermediate portion; the first end portion is orientated in a direction substantially parallel to a centerline of the compressor and defines an inlet for receiving ambient air; and the second end portion is orientated in a direction substantially perpendicular to the centerline of the compressor and defines an outlet that directs the ambient air towards the compressor inlet; and a silencer fluidly connected within the inlet system and orientated such that an upstream portion faces the first end portion and a downstream portion faces the second end portion; and a heating system including a single conduit located within the second end portion and adjacent to the silencer, wherein the single conduit extends horizontally through the second end portion and is arranged in a substantially horizontal relationship, the single conduit includes a first end section, a second end section and an intermediate section, at least one of the first and second end sections is fluidly connected to the compressor extraction outlet, wherein the single conduit includes a plurality of outlet openings through which the heated air from the compressor extraction outlet flows into the plenum, and wherein heated air from the compressor extraction outlet passes through the single conduit and raises a temperature of ambient air passing through the plenum and then into the compressor inlet; characterized in that fluidly connected portions of the single conduit form an integrated structure with the plurality of outlet openings arranged around in which the integrated structure comprises a straight segment, a first curved segment and a second curved segment, wherein a first end of the straight segment is connected by the first curved segment to the compressor extraction outlet, and wherein a second end of the straight segment is connected by the second curved segment to the compressor extraction outlet.