what is green sticker
Green Sticker Program A Green Sticker is an adhesive sticker placed on your space- and water-heating natural gas appliances by a licensed and certified1 heating contractor. The Green Sticker verifies these natural gas appliances have been properly derated (adjusted) to safely burn natural gas at your altitude. Why is this Green Sticker adjustment necessary? A Green Sticker adjustment is necessary because most natural gas-fired furnaces and water heaters in Utah need to be derated to operate safely and efficiently at different altitudes.