Ultra Series 2 Condensing |  |
| • | All with 20-100% Modulation |
| • | Innovative combination of appearance, intelligence and technology. |
| • | High Efficiency: Over 92% AFUE and up to 98% for low temperature applications. |
| • | Features PhD Technology - an intelligent system that delivers Precision Hydronic heating and hot water needs while maximizing efficiency |
| • | Ratings (5 sizes): 80 MBH, 105 MBH, 155 MBH. 230 MBH, 310 MBH |
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