Incoloy Elements provide long life and superior scaling resistance

Glasslined Tank specially developed for water heater use

Fusing-protects all elements, thermostats and internal wiring circuits against excess current flow

Surface mounted thermostats

Simplified circuitry, color coded for ease of service

Two anode rods for maximum corrosion protection

Cabinet has bonderized undercoat with baked enamel finish

Bottom inlet and top outlet opening

Single panel control box

Foam insulation reduces costly heat loss

All Models Feature an Exclusive 3-Position Rotatable Blower Outlet which Adds Flexibility

Protected Sensor that Detects the Presence of Flammable Vapors and Automatically Disables the Burner to Prevent Ignition

Air Intake Snorkel Elevates the Inlet Location of Combustion Air to Prevent Flammable Vapors from Entering the Sealed Combustion Chamber

Reduced NOx Emissions Comply with Air Quality Management District Regulations

Built-In Heat Traps on the Water Inlet and Outlet Reduce the Amount of Heat Lost through Piping

Dip Tube Reduces Lime and Sediment Buildup and Maximizes Hot Water Output, Made from Long Lasting PEX Cross-Linked Polymer

Blue Diamond Glass Coating Provides Superior Corrosion Resistance Compared to Industry Standard Glass Lining

State-Of-The-Art Electronic Gas Control Provides More Precise Temperature Control

Drain Valve Uses a Standard Female Hose Fitting that Allows for Fast and Easy Draining During Maintenance

All Models Approved for Installation from Sea Level to 10100 Ft Elevation

2" Pipe Vents up to 50 Equivalent Feet, 3" Pipe Vents up to 125 Equivalent Feet, 4" Pipe Vents up to 180 Equivalent Feet

Energy Star® Qualified

AHRI Certified

Lead-Free

All Models Feature an Exclusive 3-Position Rotatable Blower Outlet which Adds Flexibility

Protected Sensor that Detects the Presence of Flammable Vapors and Automatically Disables the Burner to Prevent Ignition

Air Intake Snorkel Elevates the Inlet Location of Combustion Air to Prevent Flammable Vapors from Entering the Sealed Combustion Chamber

Reduced NOx Emissions Comply with Air Quality Management District Regulations

Built-In Heat Traps on the Water Inlet and Outlet Reduce the Amount of Heat Lost through Piping

Dip Tube Reduces Lime and Sediment Buildup and Maximizes Hot Water Output, Made from Long Lasting PEX Cross-Linked Polymer

Blue Diamond Glass Coating Provides Superior Corrosion Resistance Compared to Industry Standard Glass Lining

State-Of-The-Art Electronic Gas Control Provides More Precise Temperature Control

Drain Valve Uses a Standard Female Hose Fitting that Allows for Fast and Easy Draining During Maintenance

All Models Approved for Installation from Sea Level to 10100 Ft Elevation

2" Pipe Vents up to 50 Equivalent Feet, 3" Pipe Vents up to 125 Equivalent Feet, 4" Pipe Vents up to 180 Equivalent Feet

Energy Star® Qualified

AHRI Certified

Lead-Free

All Models Feature an Exclusive 3-Position Rotatable Blower Outlet which Adds Flexibility

Protected Sensor that Detects the Presence of Flammable Vapors and Automatically Disables the Burner to Prevent Ignition

Air Intake Snorkel Elevates the Inlet Location of Combustion Air to Prevent Flammable Vapors from Entering the Sealed Combustion Chamber

Reduced NOx Emissions Comply with Air Quality Management District Regulations

Built-In Heat Traps on the Water Inlet and Outlet Reduce the Amount of Heat Lost through Piping

Dip Tube Reduces Lime and Sediment Buildup and Maximizes Hot Water Output, Made from Long Lasting PEX Cross-Linked Polymer

Blue Diamond Glass Coating Provides Superior Corrosion Resistance Compared to Industry Standard Glass Lining

State-Of-The-Art Electronic Gas Control Provides More Precise Temperature Control

Drain Valve Uses a Standard Female Hose Fitting that Allows for Fast and Easy Draining During Maintenance

All Models Approved for Installation from Sea Level to 10100 Ft Elevation

2" Pipe Vents up to 50 Equivalent Feet, 3" Pipe Vents up to 125 Equivalent Feet, 4" Pipe Vents up to 180 Equivalent Feet

Energy Star® Qualified

AHRI Certified

Lead-Free

Heating perfection and long-term protection

Every Ultra boiler is hydrostatically tested to ASME standards and test fired

Backed by Weil-McLain quality and a warranty that provides peace of mind

Unrivaled technical and field sales support

From North America's leading boiler manufacturer with over 135 years of proud history

Designed to operate in low temperature condensing applications

Outdoor reset and domestic hot water priority

Modulates with 5:1 turn-down ratio

High grade stainless steel burner features quiet operation

U-Control gives you the power for easy set-up and maintenance

Back-lit LCD display and simple programming buttons make entering and receiving information easy

Energy Star® Rated

Anode Rod For Maximum Corrosion Protection

Cabinet Has Bonderized Undercoat With Baked Enamel Finish

Zinc plated copper sheaths for longer life

Anode Rod For Maximum Corrosion Protection

Cabinet Has Bonderized Undercoat With Baked Enamel Finish

Zinc plated copper sheaths for longer life