05-20-10 Green Sticker Reminder In 1998, the changing composition of natural gas supplies entering Questar Gas's system required new recommended appliance settings. Customers were advised to have their appliances checked and, if necessary, adjusted. A Green Sticker on the furnace or water heater provides proof that inspections and proper adjustments have been made. Today, Questar continues to strongly urge customers who do not have Green Stickers to have their appliances inspected and adjusted by a certified heating contractor as soon as possible. Research shows that the Green Sticker program has enhanced customer safety by raising public awareness about the need for annual appliance safety inspections and the benefits of proper appliance adjustment.