Burnham is devoted to pushing the limits of heating technology and efficiency. Their ingenuity is responsible for some of the most efficient boilers on the market today. The Series 3 line of hot water boilers blends a reliable design with Burnham's cutting edge IQ Control System. Series 3 boilers save energy by doubling down on heat retention with an insulated jacket and plates. Possessing industry standard tapping locations, simplified venting, and exceptional efficiency, the 309BNI-T is an excellent replacement for older natural draft boilers or the perfect addition for new construction.
Intelligent Hydronic Control
All Series 3 boilers have Burnham's IQ Control System. The IQ system consists of two primary components: an IQ Option Panel and an Intelligent Hydronic Control. The Intelligent Hydronic Control is the centerpiece of Burnham's IQ Control System. The IHC supports two setpoints, controls ignition, provides fan and circulator relays, and acts as an aquastat.
IQ Option Panel
The IQ Option Panel provides a standardized and simplified way to add functionality to your boiler. It supports Burnham's IQ Option Cards for outdoor reset, an auxiliary high limit, and low water cutoff. Options card are plug-and-play, which means customizing your 309BNI-T is easier than ever.
Compact Venting Technology
All Series 3 boilers contain a draft diverter. By internalizing this component, the profile of the boiler and the space required for installation is reduced. The 309BNI-T also includes a vent damper to provide ideal combustion conditions.
Cast-iron construction of the boiler sections contribute to the incredible longevity of Series 3 models. The heat exchanger is also made of cast iron, which allows it to accept lower return water temperatures. By using a lower system temperature when possible, you will save energy and prevent short-cycling.
- (1) Burnham 309BNI-T Hot Water Boiler
- (1) Burnham 102284-05 8" Vent Damper
- (1) Taco 007-2 Circulator
- (1) Miscellaneous Parts Bag
- (1) Instruction Envelope