Combustion Type

Code Start Year End Year
Large Boilers (>100 MMBtu/hr Heat Input):Controlled Flue Gas Recirculation 2016 -
Large Boilers (>100 MMBtu/hr Heat Input):Controlled Low NOx Burner 2016 -
Large Boilers (>100 MMBtu/hr Heat Input):Uncontrolled 2016 -
Residential Furnaces (<0.3):Uncontrolled 2016 -
Small Boilers (<100 MMBtu/hr Heat Input):Controlled Flue Gas Recirculation 2016 -
Small Boilers (<100 MMBtu/hr Heat Input):Controlled Low NOx Burner 2016 -
Small Boilers (<100 MMBtu/hr Heat Input):Uncontrolled 2016 -