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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:
- 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
4.1 ★★★★★
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Product Reviews
★★★★★ 5
Season two is a fantastic addition to season one as another demo worthy picture.
Arcane League of Legends is one of my favorite animated series that originally aired on Netflix. It looked great on Netflix in 4K HDR. I initially purchased season one of this series on Blu-ray 4K and it is one of the best looking Blu-rays I have ever seen. It is demo material to show off my Sony OLED. So when season two became available I immediately jumped on the pre-order. I was not disappointed in season two looks as good as season one in this 4K Blu-ray. Once again it is demo material worthy. And while both seasons looked very good on Netflix, these 4K Blu-rays take it to a whole other level.
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Reviewed in the United States on February 28, 2026
★★★★★ 5
Special item
Was a Gift. I believe it was liked.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Excellent
Excellent. Just as described and glad I have it for my collection
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Perfect
Beautiful the artwork on the front cover is beautiful just like the show it's self. the product came in amazing time and in great care. it is actual full metal cover so very durable. Would recommend for ANY fan of the show its a great collector's piece and it'd pair nicely with the first season's steelbook.
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Reviewed in the United States on January 15, 2026
★★★★★ 5
Great book and a million uses!
Format: Paperback
This works perfect to help create outfits that are perfectly coordinated! I grab one thing I really want to wear, find that color in the book, and then match everything else to the other colors. My daughter also uses it for paintings and art projects.
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Reviewed in the United States on March 25, 2026