The Vmax series is equipped with a high-performance down-fired fire tube stainless steel heat exchanger and have been designed to make installation, setup, and service easy. The dedicated indirect tank connections and integrated primary loop pump make the Vmax series unique in the boiler industry, setting a new standard in terms of ease of installation and peace of mind. Integrated and smart solutions that ensure quick and effective installation, even for complex applications.

NTI Vmax Plus Gas Fired Condensing Boiler, 120 VAC, 95 % AFUE, 15.4 - 154 MBtu/hr Input, 141 MBtu/hr Heating, 122 MBtu/hr Net Rating BTU, 16 gal Capacity, 30 lb/sq-in Pressure, 1/2 in FNPT Gas, 1 in MNPT Water, 3/4 in MNPT Connection, Natural, LP Gas Fuel, Direct Spark Ignition, Wall Mounting, 45-1/4 in H x 28-1/4 in D

• Built-in primary loop and circulating pump
• Dedicated indirect tank connections
• Quick connect components
• High performance fire tube stainless steel heat exchanger
• Universal vent connections with embedded test port
• Vents in PVC, CPVC or poly propylene
• Easy to program display
• Vertical firetube boiler
• ASME "H" stamped boiler, designed and constructed in compliance with the ASME boiler and pressure vessel code section IV
• Modulating burner, 10:1 turndown ratio
• Direct spark ignition
• Built-in 16 gal indirect water heater (with tank sensor)
• Built-in 3-speed circulator
• Built-in 3-way diverter valve
• Water pressure sensor
• 120 VAC outlet for condensate pump
• Zero clearance to combustibles (clearances required for service)
• Field conversion from natural gas (factory) to propane
• 3 in x 150 ft vent/air-inlet

• Catalog https://assets.unilogcorp.com/267/ITEM/DOC/NTI_VM153_Catalog.pdf
• Instruction/Installation Manual https://assets.unilogcorp.com/267/ITEM/DOC/NTI_VM110P_Manual.pdf
• Specification Sheet https://assets.unilogcorp.com/267/ITEM/DOC/NTI_VM153P_Specification_Sheet.pdf