Warranties 
Rebates 
Tax Credits 
Sustainability 
Careers 
Help 
Professional Classic Series Ultra Low NOx Skinny Models
MODEL PROG40-34U RH EC1 TT
- 6-Year limited tank and parts warranty
- With ProtectionPlus™ the 6-year limited tank warranty becomes 10-year
- See Residential Warranty Certificate for complete information
- .58 - .64 UEF
- Longer life
- SCAQMD Rule 1121 compliant
- 29, 39, 40, and 50 gallon capacities
Select Capacity
28
Gallons
38
Gallons
46
Gallons
SKU PROG40-34U RH EC1 TT
Warranty Years 6
Model Professional Classic Series Ultra Low NOx Skinny Models
Tank Capacity 38
Fuel Natural Gas
Height 61.5"
UEF 0.58
LowNox Yes
Efficiency
- .58 - .64 UEF
- More hot water at a low operating cost
Performance
- FHR: 51 - 86 gallons for natural gas
- Recovery: 30 to 40 GPH at a 90° F rise, depending on mode
Guardian System™ & Sensor
- Exclusive 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
- Ultra Low NOx radiant burner design
- Stainless steel construction
- SCAQMD Rule 1121 compliant
- Meets 10 ng/J NOx requirements
Self-Cleaning
- EverKleen® patented system fights sediment build-up
- Reduces fuel costs
- Provides more hot water
Easy to Light
- No matches required
Longer Life
- Premium grade anode rod provides long-lasting tank protection
High Altitude Compliant
- Select models certified up to 10,000 ft. above sea level
Plus…
- NEW! Skinny models with smaller tank diameter 16 & 18" diameter
- NEW! Side water connections for space heating applications available on select models
- Enhanced flow brass drain valve
- Temperature and pressure relief valve included
- Factory installed temperature and pressure relief valve on select models
- Low lead compliant
- Exclusive Rheemglas® lining
Warranty
- 6-Year limited tank and parts warranty
- With ProtectionPlus™ the 6-year limited tank warranty becomes 10-year
- See Residential Warranty Certificate for
complete information
- 6-Year limited tank and parts warranty
- With ProtectionPlus™ the 6-year limited tank warranty becomes 10-year
- See Residential Warranty Certificate for complete information
More Residential Rheem Products
Find additional documentation by viewing these related products.
Natural Gas
Propane Gas
Professional Prestige® Maximus Heavy Duty with LeakSenseCapacity 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® MaximusCapacity 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
Propane Gas
Natural Gas
Performance Platinum™ Maximus With LeakSenseCapacity 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
Propane Gas
Natural Gas
Performance Plus® MaximusCapacity 40-50
- Up to .90 UEF reduces operating cost
- Recovery: Up to 64 GPH at a 90° Frise, depending on model
- Up to 95G first hour rating depending on model
- Built-in Condensate Neutralizer
