Overview

It's not uncommon for cast iron boilers to last in excess of 40 years. Ultra Oil features a commercial grade heat exchanger with thick cast iron walls for durability and product longevity. It also features a three pass design concept that has been used by Weil McLain for over 70 years, because it provides better flame control and more efficient fuel utilization, which reduces heating costs. Strategically designed flueway fins increase the heat transfer surface area, which extracts more heat and increases efficiency without penalizing boiler back pressure. The wider flueways decrease the negative impact of fouling. An added benefit of the three pass design is the horizontal configuration, which makes virtually all of the combustion chamber, turnaround, and flueways visible from the front of the boiler for easy cleaning and maintenance. Silicone coated fiberglass rope insures a positive seal. Revolutionary rear section design directs the flue gas flow into the flueways without sacrificing pressure drop through the inner and the outer flueways which eliminates the need for a rear refractory. Ultra Oil features a full access, reversible swing away burner door, which exposes virtually the entire combustion area and all flue ways for simplified inspection, cleaning, and maintenance. This design also incorporates a mounting bracket that can be installed on either the left or right side of the front section for installation in small, confined spaces and corners. Ultra Oil has a modern appearance that combines appliance like design features for placement in high traffic living spaces, with easy serviceability for the contractor. The top mounted hinged control POD includes a factory installed external service switch and temperature / pressure gauge for easy viewing. The unique, angled POD provides control system protection from dirt, moisture and temperature fluctuations, and includes a combination temperature control and low water cutoff. Factory assembled, pre-wired terminal strips simplify field wiring of incoming power, mounted circulators and additional limit controls that may be required by local codes.

Features

• This boiler is direct vent only
• Vent termination kit 386-902-010 and 15 foot flexible insulated vent pipe 386-902-012 are required (Sold separately)
• Water content: 18.25 gallons
• Snap on front jacket panel allows easy entry to the full access burner door
• Left and right side jacket panels are interchangeable
• All piping, wiring and venting connections are located in the rear of the boiler
• The burner door is removeable
• A quick disconnect plug cuts burner power when the burner door is open
• Factory wired terminal strips with labeled wires