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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
Commercial Universal Heavy Duty 100 Gal. 399.9K BTU Low NOx (LN) Natural Gas 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 & 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 & 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 two 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 |
| BTU Rating | 399900 |
| Tank Lining Material | Glass |
| Commercial/Residential | Commercial |
| Application Type | Commercial |
| Tank Warranty | 3 Year |
| Wattage (watts) | 0 |
| Maximum Temperature (F) | 180 |
| Water Heater Profile | Tall |
| 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 |
| Nominal Tank Capacity (gallons) | 100 |
| 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:
- 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
4.3 ★★★★★
Based on 2253 reviews
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Product Reviews
★★★★★ 3
Below expectation
Color: Black
Not quite what I was expecting but it can be used
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 4
Good
Color: Grey
Works as it should, but one of the brackets on the leg broke while setting up. Super glue is holding it in just fine.
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Reviewed in the United States on March 5, 2026
★★★★★ 1
Not good for putting away daily
Color: Grey
This product may work of you are doing a full install, but is terrible for putting up and taking down daily. I have only had it 2 months and it is falling apart and will not stand straight.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Privacy at ease!
Color: Black, Color: Black
This is exactly what we needed for our large house and bedroom sharing with the kids. People need privacy and this can be tucked away when it isn't being used. Perfect!
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Easy to put together
Color: Black, Color: Black
I was pleasantly surprised by how well this room divider is designed. The engineering behind it is actually pretty thoughtful. All the pieces line up exactly where you expect them to, and the connectors make assembly almost foolproof. I had it put together in just a few minutes without any frustration or extra tools.
The fabric panels look clean and modern, and the whole unit is surprisingly lightweight. That makes it easy to move around if you want to reconfigure a room or create a quick private space. Even though it’s light, it still feels stable once it’s assembled.
Overall it’s a simple product done right: easy to assemble, easy to move, and it does exactly what it’s supposed to do. I’d definitely buy it again.
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Reviewed in the United States on March 9, 2026