The article looks at a barn trial comparing the heating costs of infrared radiant tubes versus hot water floor tubes combined with forced air gas. Air is heated by an ATL 60,000 BTUH unvented forced air gas unit heater and a central Slant Fin 140,000 BTUH gas fired hot water broiler is used to heat the water being piped to each nursery. Radiant tube heating is much cheaper, controls humidity and requires litte maintenance. There is more even heat throughout the room and thus the producer gets more for each energy dollar spent. Tube type gas fired infrared heating radiates reflected heat to the objects in the room. It does not heat the air, it heats the pigs. The trial found a 48% difference between the systems. Radiant tube heat has better utilization of energy than the broiler for hot water and the forced air gas.