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Residential Products
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HomeProductsResidentialWater HeatersProfessional Classic Plus Series: Atmospheric

Professional Classic Plus Series: Atmospheric

MODEL PRO+G40-36P RH AX
  • Tank - 8 Years limited
  • Parts - 8 Years limited
  • With ProtectionPlus the 8-year limited tank warranty becomes 12 years!
  • .58 - 66 UEF
  • Eco-friendly burner, low NOx design
  • 40, 48, 50 and 55 gallon capacities
  • Select models have side water connections for space heating applications
Select Capacity
40
Gallons
48
Gallons
50
Gallons
55
Gallons

SKU PRO+G40-36P RH AX
Warranty Years 8
Model Professional Classic Plus Atmospheric
Tank Capacity 40
Fuel Propane Gas
UEF
0.66

Professional Classic Plus® Atmospheric gas water heaters are engineered for more hot water at a low operating cost

Efficiency

  • .58 - .66 UEF
  • More hot water at a low operating cost
Performance
  • FHR: 52 - 105 gallons
  • Recovery: 36.4 to 61 GPH at a 90° F rise, depending on model
Guardian System & Sensor
  • Exclusive air/fuel shut-off device
  • Maintenance free – no filter to clean
  • Protective control system that disables the heater in the presence of flammable vapor accumulation
Low Emissions
  • Eco-friendly burner, low NOx design
  • Meets 40 ng/J NOx requirements
Longer Life
  • Premium grade anode rod provides long-lasting tank protection
Plus…
  • Easy to light – no matches required
  • EverKleen patented system fights sediment build-up
  • Enhanced flow brass drain valve
  • Temperature and pressure relief valve included
  • Low lead compliant
  • Standard replacement parts

Not Available in Canada

  • Tank - 8 Years limited
  • Parts - 8 Years limited
  • With ProtectionPlus the 8-year limited tank warranty becomes 12 years!

More Residential Rheem Products

Find additional documentation by viewing these related products.

Natural Gas
Propane Gas
Professional Prestige® Maximus Heavy Duty with LeakSense
Capacity 75-75
  • .88 UEF reduces operating cost
  • Highest Hot Water Delivery (FHR) of 198 gallons in MaxMode
  • Easy front access to connections and components
  • LCD Display with built-in water leak sensor and system health
Propane Gas
Natural Gas
Professional Classic Plus® Maximus
Capacity 40-50
  • Up to .90 UEF reduces operating cost
  • Recovery: Up to 64 GPH at a 90° F rise, depending on model
  • Up to 95G first hour rating depending on model
  • Built-in Condensate Neutralizer
Natural Gas
Professional Classic Series Ultra Low NOx Skinny Models
Capacity 28-46
  • .58 - .64 UEF
  • Longer life
  • SCAQMD Rule 1121 compliant
  • 29, 39, 40, and 50 gallon capacities
Propane Gas
Natural Gas
Performance Platinum Maximus With LeakSense
Capacity 40-50
  • Up to .90 UEF reduces operating cost
  • Highest Hot Water Delivery (FHR) of 192 gallons in MaxMode
  • Easy front access to connections and components
  • LCD Display with built-in water leak sensor and system health