105 – 252 MBH
Efficiency up to 87% AFUE, ENERGY STAR® Certified (TRB4075, TRB5100, TRB6130 and TRB7165)
Advanced High Efficiency Three Pass Heat Exchanger Design
Multiple Firing Rates
High Limit Control with:
LED display
Easy-To-Program Dial Settings
Boiler Water Temperature Reset
Low Water Cut-Off Functionality
Compact Footprint
Burners and Venting Options
Warranty
20-Year Non-Prorated Limited Warranty (Residentia