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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27
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Description
Commercial Universal Heavy Duty 100 Gal. 310K BTU 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 & 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 DOES NOT MEET LOW NOX (LN) EMISSIONS REQUIREMENTS. REGULATIONS PROHIBIT THE SALE, SHIPMENT OR INSTALLATION OF THIS WATER HEATER IN ANY AIR QUALITY DISTRICT THAT REQUIRES LOW NOX WATER HEATERS.
- 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: our exclusive diagnostic system, with glowing LED lights, 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
- Stainless steel burners: precision burners, raised port design, are formed from high chromium stainless steel; each burner assembly slides out like a drawer for quick inspection and maintenance
- 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 and hand-hole cleanout for easy removal of lime/sediment deposits
- Direct spark to pilot ignition system: Saves energy by igniting only when there is a call for heat
- Built-in corrosion resistance: patented anode design utilizes multiple magnesium rods to ensure corrosion resistance for a long tank life
- Fully insulated: energy saving sag and moisture proof fiberglass insulation surrounds the storage tank and heavy mineral wool insulation surrounds the combustion chamber
- 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
- 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
- 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 | 770 |
| Uniform Energy Factor | 0 |
| Returnable | 90-Day |
| Tank Lining Material | Glass |
| BTU Rating | 310000 |
| Commercial/Residential | Commercial |
| Application Type | Commercial |
| Tank Warranty | 3 Year |
| Wattage (watts) | 0 |
| Recovery Rate at 90F Rise (gallons/hour) | 334 |
| Maximum Temperature (F) | 180 |
| Water Heater Profile | Tall |
| Finish Family | Gray |
| Water Heater Features | Overheat Protection,Temperature Pressure Relief Valve |
| Minimum Temperature (F) | 70 °F |
| Indoor/Outdoor | Indoor |
| Fuel Type | Gas |
| Product Weight (lb.) | 770 lb |
| Pack Size | 1 |
| Vent Type | Atmospheric |
| Nominal Tank Capacity (gallons) | 100 |
| Household Size | 5+ |
| Water Connection Size (in.) | 1.5 in Top, 2 in Side |
| Product Width (in.) | 30.25 in |
| Product Height (in.) | 75 in |
| Product Depth (in.) | 30.25 in |
| Tank Valve Size (in.) | 0.75 |
| 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
4.5 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
My “go to” work shoes
Size: 9, Color: Brown
I think these look great, sporty and office appropriate for men as well outside of a really formal setting (wouldn’t pair with my suit but for chinos and a polo, it’s perfect!). The main thing I want to talk about though, is COMFORT. Man these are great! I’ve always had flat feet with discomfort after a few minutes of standing. With these on, I find myself using my standing desk for over an hour when I first get in and taking walks around the building during break time with ease. No tired feet when I get home and I think they look pretty cool to top it off. Great value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 6, 2025
★★★★★ 5
Pleasantly surprised!
Size: 10, Color: Black
They look kinda of cheap and like old man shoes in the box. I was not expecting much as they were very inexpensive. They were boxed really cool with each shoe having its own sleeve and are true to size (Size 10). Comfortable and sturdier than they appear. They are very cushiony and look more stylish when you're wearing them. I thought they would wrinkle immediately upon wearing them but not so far. Was caught in a rainstorm and when they dried they were still like new. For the price (Just over $30 because I did not clip the coupon, grrrrrr!) they are well worth it. I am pleasantly surprised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 31, 2025
★★★★★ 5
Fit Perfectly, Very Comfortable
Size: 11, Color: Black
I really love this shoe brand. I always play it safe with them — they’re comfortable, well-priced, and consistently reliable.
This particular pair stands out because it’s very lightweight, extremely comfortable, and fits me perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2026
★★★★★ 3
Only last one year
Size: 12, Color: Brown
These shoes were comfortable for a time but only last me for almost exactly a year. Mostly walking around an office and one of the soles completely fell off. With the other shoe trending that way.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Look Good, and Comfortable!
Size: 12, Color: Black
These shoes fit my wide feet and are comfortable as well! I have received compliments on them and I would definitely buy them again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
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