Weil-McLain Ultra 105 - 81,000 BTU Output High Efficiency Boiler - Series 4 (Nat Gas or LP)

Note: the Ultra boiler is no longer shipped with the Sentinel X100 Inhibitor & Sentinel Inhibitor Test Kit as stated in the User Guide. Note: Product Title reflects this boiler's IBR Net Output Rating Easy-up Manifold Installation Options: 383-500-649 Ultra Easy-Up Manifold Kit for Ultra 105 (1-1/4" Piping) Propane Conversion Orifice included for LP Gas Applications The Ultra Easy-Up Manifold Kit can speed up installation of the primary/secondary piping required on Ultra boilers. Weil-McLain's Easy-Up manifold kit is designed by the boiler manufacturer and provides the added feature of optional indirect water heater connections. Key Features Gas fired water boiler with cast aluminum heat exchanger Venturi mixing body mixes air and gas providing higher efficiency Designed to operate in low temperature condensing applications Outdoor reset and domestic hot water priority standard Negative regulated gas valve precisely delivers gas to the boiler Electronic control module automatically adjusts blower speed and...