40 Gal. Tall Water Heater, Residential, Gas, 38,000 BTU

The Rheem PROG40-38N-RH62 Professional Classic Plus Series 40-Gallon Gas Water Heater provides reliable, efficient hot water performance with durable construction and atmospheric vent design.

The Rheem PROG40-38N-RH62 is a tall, atmospheric vent natural gas water heater engineered for long-lasting performance and high recovery efficiency. Part of Rheem’s Professional Classic Plus Series, this 40-gallon model delivers 38,000 BTU/hr of heating power and a 38.4-gallon per hour recovery rate, ensuring consistent hot water supply for residential applications. Featuring a self-diagnostic gas control valve, enhanced insulation, and corrosion-resistant tank lining, it combines durability, safety, and energy efficiency in one dependable design.

• Model number PROG40-38N-RH62 identifies the Rheem Professional Classic Plus Series 40-Gallon Atmospheric Gas Water Heater.
• Designed for residential hot water systems requiring reliable performance and consistent recovery.
• Fueled by natural gas and configured for atmospheric vent installation.

Technical Data & Performance

• Product Type: Gas-Fired Storage Water Heater.
• Brand: Rheem.
• Series: Professional Classic Plus.
• Tank Capacity: 40 gallons (151 liters).
• Design: Tall model for floor-mounted vertical installation.
• Fuel Type: Natural Gas.
• Input Rating: 38,000 BTU/hr.
• Recovery Rate: 38.4 gallons per hour (GPH) at 90°F temperature rise.
• Energy Efficiency: 0.62 Energy Factor (EF) – designed for dependable performance and reduced energy consumption.
• Water Connections: 3/4 inch NPT hot and cold water inlets located at the top.
• Venting Type: Atmospheric vent for vertical flue exhaust through standard metal vent piping.
• Ignition System: Piezo push-button ignition for easy pilot lighting.
• Gas Control Type: Self-diagnostic electronic gas control valve for precise temperature management and system monitoring.
• First-Hour Rating: Up to 67 gallons of hot water delivery.
• Temperature Range: Up to 140°F (60°C) adjustable via control thermostat.
• Maximum Working Pressure: 150 psi.
• Flue Diameter: 3 or 4 inches (depending on installation requirements).
• Tank Lining: Glass-lined steel tank for corrosion protection and extended life.
• Anode Rod: Magnesium anode for superior internal corrosion resistance.
• Insulation Type: Non-CFC foam insulation minimizes standby heat loss and maximizes efficiency.
• Burner Type: Heavy-duty, low-NOx gas burner for clean, efficient combustion.
• Pilot Type: Standard pilot with safety thermocouple.
• Safety Features:
  • Flammable Vapor Ignition Resistant (FVIR) design for enhanced safety.
  • Temperature and Pressure (T&P) relief valve included.
  • Automatic gas shutoff in case of abnormal operation.
• Dimensions:
  • Diameter: 19 inches.
  • Height: 61-1/2 inches.
• Weight: ~130 lbs (59 kg) empty.
• Mounting Type: Floor-mounted vertical installation.
• Vent Connector: Top-mounted flue outlet.
• Air/Fuel Mixing: Precision venturi burner for efficient fuel combustion.
• Maintenance: Accessible drain valve for easy tank flushing and service.
• Finish: Rheem white enamel exterior for corrosion and impact resistance.
• Noise Level: Low operational noise due to insulated design and burner control.
• Application: Suitable for residential homes, apartments, and light commercial installations.
• Compliance:
  • Certified to ANSI Z21.10.1 standards.
  • Complies with National Appliance Energy Conservation Act (NAECA) requirements.
  • Low-NOx compliant in applicable regions.
• Packaging: Supplied as a fully assembled tank and burner unit with installation manual and T&P valve.
• Warranty:
  • 6-year limited tank warranty.
  • 6-year parts warranty.

Applications & Benefits

• Provides reliable and efficient hot water delivery for residential applications.
• Durable glass-lined steel tank ensures long-term corrosion protection.
• Energy-efficient design (0.62 EF) helps reduce operating costs.
• Self-diagnostic control system simplifies troubleshooting and maintenance.
• FVIR-compliant safety design ensures protection against flammable vapor ignition.
• Ideal for homes, multifamily dwellings, and light commercial hot water systems.