Additional InformationAHRI Certified|ASME Specified|cETLus Listed
Marketing InformationThe Series 3 shares many of its features with the award winning ES2, including the durable cast iron heat exchanger, rugged heavy gauge steel-base and the innovative IQ Control System™. The IQ Control System™ allows the Series 3 to be easily equipped with an optional energy saving control package that, according to many studies, can deliver up to a 15 to 20% reduction in fuel consumption. In addition, the Series 3 provides even more flexible chimney venting options making it the right choice for millions of homes.