40,000 BTU input to 399,000 BTU input - 38,400 BTU output to 383,000 BTU output - Can be converted to LP with optional LP kit

Stainless steel fire tube heat exchanger is easy to inspect - Includes 3/4 inch x 24 inch condensate hose

Touch Screen V-10 Boiler Controler with Express Set Up, remote monitoring and diagnostics - Intuitive alert system

Easy USB programmability - Supply, return and gas connections are located on the bottom of the boiler

Built in multiple zone pump control - Up to 4 zones replacing the need for external pump controls

Built in outdoor reset control of water temperature - Built in low water cut off with manual reset high limit