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Residential Products
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HomeProductsResidentialWater HeatersPerformance Series: Ultra Low NOx

Performance Series: Ultra Low NOx

MODEL XG40T06TN34UO
6-Year limited warranty for tank and parts
1-year full in-home labor warranty

*See written warranty for complete details
  • .58 - .64 UEF
  • 29, 40, 50, and 55 gallon capacities
  • Up to 45,000 Btu/hr
Select Capacity
40
Gallons
50
Gallons

SKU XG40T06TN34UO
Warranty Years 6
Model PERFORMANCE SERIES: ULTRA LOW NOX Skinny Models with Installed Top T&P Valve
Tank Capacity 40
Fuel Natural Gas
Height 61.5"
UEF
0.63
LowNox Yes

PERFORMANCE Ultra Low NOx gas water heaters offer a six-year warranty and are SCAQMD rule 1121 compliant with 10 ng/J NOx emissions

Efficiency
  • .58 - .64 UEF
  • More hot water at a low operating cost
Performance
  • FHR: 51 - 93 gallons for natural gas
  • Recovery: 30 to 45.5 GPH a 90° F rise
Maintenance Free Burner System
  • Exclusive fuel shut-off device
  • Maintenance free – no filter to clean
  • Disables the heater in the presence of flammable vapor accumulation
Low Emissions
  • Ultra Low NOx radiant burner design
  • Stainless steel burner construction
  • SCAQMD Rule 1121 compliant
  • Meets 10 ng/J NOx requirements
Easy to Light
  • No matches required Diagnostic Valve
High Altitude Compliant
  • All models certified up to 5,999 ft. above sea level
  • Some models certified up to 10,200 ft. above sea level, check factory for listings
Plus…
  • Temperature and pressure relief valve included
  • Low lead compliant

PERFORMANCE ULTRA LOW NOx MODELS
FUEL TYPE DESCRIPTION  GAL. CAP. MODEL NUMBER ENERGY
FACTOR
ENERGY STAR®
PERFORMANCE - SELF POWERED DIAGNOSTIC CONTROL - HIGH EFFICIENCY 
Natural Gas Tall
50

XG50T06HN38U1

0.62
--
PERFORMANCE - SELF POWERED  DIAGNOSTIC CONTROL
Natural Gas Tall 50

XG50T06EN38U0

0.60 --
Natural Gas
Tall 50

XG50S06EN40U0

0.60  --
Natural Gas Short 40

XG40T06EN38U0

0.62  --
Natural Gas Tall 40

XG40S06EN34U0

0.62  --
Natural Gas  Tall 29  XG29T06EN30U0 0.63 --
PERFORMANCE - SELF POWERED DIAGNOSTIC CONTROL - HIGH DEMAND
Natural Gas Tall 55 XG55T06EN45U0 0.59  --

6-Year limited warranty for tank and parts
1-year full in-home labor warranty

*See written warranty for complete details

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