The American Standard Heating systems proves to be a very popular, costefficient and reliable choise for most homeowners. American Standard 92 Furnace is an affordable option that can still reliably heat your home without any problems. The heater operates at 92.1 percent AFUE, making it an energy-efficient model. In case if you need the best heating system currently available on a market, then American Standard can offer a few more expensive but much more advanced, efficient & quietest models as well.