SKU: 26623776303

100 Gal. Universal Heavy Duty 399.9K BTU Low NOx (LN) Commercial Natural Gas ASME Tank Water Heater

Sale price$4349.97 Regular price$4833.30
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

100 Gal. Universal Heavy Duty 399.9K BTU Low NOx (LN) Commercial Natural Gas ASME Tank Water HeaterRheem Commercial Universal Gas Water Heaters are designed to fit into tight retrofit applications and have the features and capacity to meet heavy duty demands. The tighter the commercial retrofit, the more you will appreciate how the Universal's compact size and multiple water connections simplify installations. Please Note: This model requires a 120 Volt power source. California residents see Prop 65 WARNINGS California and Utah residents (Utah

Rheem Commercial Universal Gas Water Heaters are designed to fit into tight retrofit applications and have the features and capacity to meet heavy duty demands. The tighter the commercial retrofit, the more you will appreciate how the Universal's compact size and multiple water connections simplify installations. Please Note: This model requires a 120-Volt power source.
  • California residents
  • California and Utah residents (Utah effective 7/1/18): this water heater does not meet ULTRA LOW NOX (ULN) emissions requirements, regulations prohibit the sale, shipment or installation of this water heater in any air quality district that requires ULN water heaters
  • Texas residents: this water heater model meets or exceeds Low NOx (LN) emissions requirements for all air quality management districts
  • Space saver design: the short heights and narrow jacket diameters, plus the top, front and rear water inlets/outlets offer the ultimate in installation flexibility
  • System sentinel LED diagnostic system verifies system operation sequence by sequence
  • Strong tank design: universals proprietary steel formulation, patented multi-flue design, combined with 2 coats of porcelain enamel, results in a superior heat exchanger design
  • Direct spark to pilot ignition system: saves energy by igniting only when there is a call for heat
  • Low profile automatic flue damper: low profile damper minimizes overall product height and heavy-duty vent hood supports are designed to withstand the rigors of installation
  • Easy to service: factory installed full port, full flow brass drain valve allows for faster draining and servicing
  • Multiple water connections simplify installation
  • Built-in corrosion resistance: patented anode design for a long tank life
  • Insulation: sag and moisture proof fiberglass insulation surrounds the storage tank and heavy mineral wool insulation surrounds the combustion chamber
  • Gas control system: thermostat adjusts from 100°F to 180°F, 24-Volt combination gas valve includes main gas pressure regulation, on-off manual valve, 120/24-Volt transformer and high limit temperature cut-out
  • Warranty: 3-year limited tank warranty
  • Need a different configuration, no problem; our universal line offers water heaters in 35 Gal. to 100 Gal. models available in a range BTU/h in natural gas and liquid propane
  • Call 1-855-400-2552 before noon for same-day installation service in most areas, or


Features
Item Weight 794
Uniform Energy Factor 0
Returnable 90-Day
Tank Lining Material Glass
Commercial/Residential Commercial
Nominal Tank Capacity (gallons) 100
Application Type Commercial
Tank Warranty 3 Year
Wattage (watts) 0
Maximum Temperature (F) 180
Water Heater Profile Tall
BTU Rating 399900
Product Weight (lb.) 794 lb
Finish Family Gray
Water Heater Features Overheat Protection,Temperature Pressure Relief Valve
Minimum Temperature (F) 70 °F
Indoor/Outdoor Indoor
Fuel Type Gas
Pack Size 1
Vent Type Atmospheric
Recovery Rate at 90F Rise (gallons/hour) 431
Household Size 5+
Product Height (in.) 76 in
Product Width (in.) 30.25 in
Tank Valve Size (in.) 1
Product Depth (in.) 30.25 in
Water Connection Size (in.) 1.5
Part Warranty 1 Year
Labor Warranty No Warranty
Certifications and Listings CSA Listed,UL Listed

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 26623776303

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★★★★★ 5
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Reviewed in the United States on June 7, 2026
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Jill
Los Angeles, US
★★★★★ 5
Nice dig you
Color: Black Noir Pawfum, Size: One Size
So cute and my yorkies love it
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Reviewed in the United States on April 25, 2026
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Andrew
San Leandro, US
★★★★★ 5
Super cute and great quality!
Super cute!!! Of course I bought it and my pug had zero interest in it, but it would be perfect for a bougie photo shoot
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Reviewed in the United States on February 20, 2026
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Amazon Customer
Port Orchard, US
★★★★★ 4
Will probably be destroyed soon, but SUPER CUTE!
Color: Pink Purse, Size: One Size
Super cute! It will probably eventually be ripped to shreds by my pups soon because it is not as sturdy as other toys out there. It is also pretty small so not the best for large dogs destructive dogs. My lab tries to eat it and rip it but my small chihuahua plays with it and fetches it (she also looks adorable holding it her mouth!!)
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Reviewed in the United States on January 5, 2017
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NicoleB
Los Angeles, US
★★★★★ 5
Adorable
Color: Pink Bone, Size: One Size
This is super cute, our small 2 pound pup plays with it often.
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Reviewed in the United States on February 19, 2026

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