HWR40-L AO SMITH PROLINE MASTER 40 GALLON PROPANE GAS WATER HEATER 36,000 BTU

The Internal Intelligent Control Logic Microprocessor Provides Enhanced Operating Parameters and Tighter Differentials for Precise Sensing and Faster Heating Response to Optimize Performance

The Electronic Gas Control Incorporates an LED Status Indicator that Monitors System Operation and Service Diagnostics

Patented Eco-Friendly Burner Design Reduces NOx Emissions by up to 33 Percent and Complies with Low-Knox Emission Requirements of Less than 40 Nanogram per Joule

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

CoreGard Anode Rods have a Stainless Steel Core that Extends the Life of the Anode Rod Allowing Superior Tank Protection Far Longer than Standard Anode Rods

Piezo Igniter Makes Lighting the Pilot Fast and Easy with One-Hand Pushbutton Spark Ignition

Heat Trap Nipples are Factory-Installed for Faster Installation

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

Our Residential Water Heaters have a Solid Brass, Tamper Resistant, Enhanced-Flow, Ball Type, Drain Valve

Eco-Friendly Non-CFC Foam Insulation, External Heat Traps and Specially Designed Combustion Chamber Combine to Produce a High Energy Factor for Maximum Savings on Operating Cost

Lead-Free