Furnace Type                                    Size                Energy Savings         Annual Savings

Reheat forging furnace                       3 MMBTU                   8%                         ~$8 K
Glass melting furnace                         80MMBTU                  5%                   ~$250-$300 K

​For a large gas-fired boiler (5 x 109 Btu/hr), a 10-percent reduction in NOx emissions yields savings of one million dollars per year from NOx credits alone