Boasts an AFUE (Annual Fuel Utilization Efficiency) of over 92% , reaching up to 98% in low-temperature applications like radiant in-floor heating.
The Ultra 310 is a condensing gas boiler designed for high-performance residential and light commercial use. Weil Mclain Ultra 310 Series 2 Manual
Includes outdoor reset and domestic hot water (DHW) priority as standard features, optimizing water temperature based on outside conditions. Navigating the U-Control Module Boasts an AFUE (Annual Fuel Utilization Efficiency) of
Built with a cast mono block aluminum heat exchanger and a high-grade stainless steel burner for quiet, reliable operation. Navigating the U-Control Module Built with a cast
The brain of the Ultra 310 is the , which manages everything from blower speed to gas flow. Ultra Gas Boiler Series 4 - Weil-McLain
Features a 5 to 1 turndown ratio , automatically adjusting its firing rate to match your home's heating demand, which reduces cycling and saves energy.
The is a powerhouse of hydronic heating, known for its high efficiency and intelligent "PhD Technology". Whether you are a homeowner looking for operating tips or a technician preparing for annual service, understanding the core components and maintenance requirements of this boiler is key to its longevity. Key Features and Specifications
