With the rising price of gas, there is energy saving techniques that can be used to reduce the cost of production. Proper management includes monitoring, setting, and maintenance of equipment to minimize the energy bill. An example of this is running fans too fast in winter, which will increase heating. Benchmarking will allow a farm to monitor energy use on a comparative basis. Creep heating can be made more efficient by using high radiant output/lower wattage heat lamps, diode dimmer switches to meet growing piglet needs, and hot water floor heating or electric heat pads to replace heat lamps. Hot water heating improves air quality and is the most efficient source. Radiant tube heating heats objects in the room rather than the air. Forced air systems heat the air itself, and must be re-circulated to disperse this heat. Gas-fired forced air systems consume oxygen and give off carbon dioxide, carbon monoxide, and water vapour. The new standards for lighting are T-8 fluorescent tubes with electronic ballast. These are 4 times more efficient than conventional incandescent lamps. Ventilation fans must be properly sized to meet production requirements. A properly designed system will optimize cubic foot/meter output and reduce capital costs. A heat exchanger can be used to recover heat from exhaust air.