The compressor, the âheartâ of the carâs air conditioning system works like a pump taking refrigerant, (R-12 Freon in older cars, R-134a in 1995 and newer cars) and pressurizing it, passing it along to the evaporator.
pontoon - (nautical) a floating structure (as a flat-bottomed boat) that serves as a dock or to support a bridge. barge, flatboat, hoy, lighter - a flatbottom boat for carrying heavy loads (especially on canals) boat - a small vessel for travel on water.
Because of buoyancy, the smaller boats have two pontoons, and the bigger heavier boats use three due to the weight being carried. Small sized Pontoon Boats range from 20-30ft and are great for day or weekend getaways. Because of their size, they can be trailerable, and great for exploring new waters.