Abstract: In one embodiment, a heater for a vehicle having an engine that generates hot exhaust gases includes a distribution pipe extending along a cargo carrying part of the vehicle. The distribution pipe is operatively connected to an engine exhaust pipe such that engine exhaust can flow through the distribution pipe when the engine is running. The distribution pipe has a plurality of openings therein through which exhaust is discharged to heat the cargo carrying part of the vehicle when the engine is running. Each opening has a cross-sectional area substantially smaller than a cross-sectional area of the distribution pipe.