Pay in installments of $583.75 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Universal Heavy Duty 100 gal. 270K BTU Ultra-Low NOx (ULN) Commercial Natural Gas Tank Water HeaterRheem Commercial Universal Ultra Low NOx (ULN) Natural 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. Top, Front and Rear water inlets outlets offer installation flexibility giving this water heater the name:
Rheem Commercial Universal Ultra-Low NOx (ULN) Natural 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. Top, Front and Rear water inlets/outlets offer installation flexibility giving this water heater the name: Universal. Please Note: This model requires a 120-Volt power source.- California residents
- California and Utah residents (Utah effective 7/1/18): this water heater model meets or exceeds Ultra-Low NOx (ULN) emissions requirements for all air quality management districts
- 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: 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 2-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-Volt/24-Volt transformer and high limit temperature cut-out
- Call 1-855-400-2552 before noon for same-day installation service in most areas, or
Features
| Item Weight | 805 |
| Uniform Energy Factor | 0 |
| Tank Lining Material | Glass |
| Recovery Rate at 90F Rise (gallons/hour) | 291 |
| Commercial/Residential | Commercial |
| Application Type | Commercial |
| Returnable | 180-Day |
| Water Heater Features | Glass-Lined Tank,Overheat Protection,Temperature Pressure Relief Valve |
| Minimum Temperature (F) | 100 °F |
| Tank Warranty | 3 Year |
| BTU Rating | 270000 |
| Wattage (watts) | 0 |
| Maximum Temperature (F) | 180 |
| Water Heater Profile | Tall |
| Finish Family | Gray |
| Indoor/Outdoor | Indoor |
| Fuel Type | Gas |
| Pack Size | 1 |
| Vent Type | Atmospheric |
| Product Weight (lb.) | 805 lb |
| Nominal Tank Capacity (gallons) | 100 |
| Household Size | 5+ |
| Product Width (in.) | 30.25 in |
| Product Depth (in.) | 30.25 in |
| Product Height (in.) | 73.875 in |
| Water Connection Size (in.) | 2 |
| 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
4.8 ★★★★★
Based on 13 reviews
Sort
Product Reviews
★★★★★ 1
Flimsy Nozzle
Size: 2 fl oz
The nozzle is so flimsy at the moment I pressed on it it popped off the can into the gas tank. I didn’t press it softly but I also didn’t press it very hard either, getting it out was a huge pain in the butt.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
The Ultimate Multi-Use Motor Treatment – A Must-Have for Any Vehicle!
Color: Pack of 4
The Sea Foam SF-16 Motor Treatment is an outstanding product that truly delivers on its promises. After using it in multiple applications for my vehicles, I’m convinced this is a must-have for anyone looking to maintain and enhance engine performance. The 4-pack is an excellent value and ensures I always have some on hand for routine maintenance.
Why Sea Foam Stands Out
Multi-Use Versatility: This product is a game-changer! I’ve used it as a fuel additive, an oil treatment, and even to clean out stubborn deposits in my carburetor. It works flawlessly across applications, making it an all-in-one solution for keeping engines running smoothly.
Improved Performance: After adding Sea Foam to my fuel tank, I noticed a significant improvement in my vehicle’s fuel efficiency and a smoother idle. It’s particularly effective at removing deposits and buildup that can reduce performance over time.
Easy to Use: The instructions are straightforward, whether you’re using it for fuel, oil, or cleaning purposes. The precise measuring cap ensures no mess or guesswork, making it simple to get the correct dosage every time.
Great for Long-Term Maintenance: Regular use of Sea Foam has made a noticeable difference in prolonging the life of my engine. I’ve also used it to revive an older lawnmower engine, which now runs like new! This product pays for itself by preventing costly repairs.
Packaging and Value
The 4-pack is perfect for multi-vehicle households or anyone maintaining more than just a car. I’ve used it in my truck, car, and small engines like my generator and lawn equipment, and I still have plenty left.
Pro Tips
Add Sea Foam to your fuel before a long drive to maximize its cleaning effect.
Use it regularly in oil changes to keep sludge buildup at bay.
It’s also great for seasonal storage—just add it to your gas tank to stabilize fuel and protect the engine.
Final Thoughts
Sea Foam SF-16 is the real deal for anyone who values vehicle performance and longevity. Its multi-use functionality, ease of application, and proven results make it a standout product. I’ve already seen noticeable improvements in my vehicles and equipment, and I’ll continue to use it as a staple in my maintenance routine. Highly recommend it to anyone who takes pride in keeping their engines in top shape!
Pro Tip: Whether you’re a DIY mechanic or just looking for a reliable maintenance product, Sea Foam is a must-have. It’s one of the simplest and most effective ways to protect your investment and extend the life of your engine. Don’t hesitate—this 4-pack is worth every penny!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2025
★★★★★ 5
Engines run smoothly and efficiently
Color: Pack of 2
I’ve been using Sea Foam SF-16 in both my outboard motor and sailboat, and it has proven to be an invaluable product for maintaining engine performance. This motor treatment is incredibly versatile and effective, making it a staple in my marine maintenance routine.
One of the standout benefits of Sea Foam SF-16 is its ability to clean and lubricate the entire fuel system. It effectively removes harmful deposits and residues that can build up over time, ensuring that my engines run smoothly and efficiently. This is particularly important for marine engines, which can be prone to issues due to the harsh operating environment.
I also appreciate how Sea Foam stabilizes fuel. This is crucial for my sailboat, which sometimes sits unused for extended periods. By adding Sea Foam to the fuel tank, I can be confident that the fuel remains fresh and free from moisture, preventing potential engine problems when I’m ready to hit the water again.
Another great feature is its ease of use. Simply adding the recommended amount to the fuel tank is all it takes to start seeing the benefits. I’ve noticed a significant improvement in engine performance, with smoother idling and better throttle response. It also helps reduce emissions, which is a nice bonus for the environment.
Overall, Sea Foam SF-16 is a fantastic product that I highly recommend to anyone with an outboard motor or sailboat. It keeps engines clean, running smoothly, and protected from the elements, making it a must-have for any boat owner.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 24, 2024
★★★★★ 5
WOW-Smoother Performance-Idle Better-Easy To Use-LOVE This Stuff
Color: Pack of 2
GREAT product! I own a "mature" car with lower milage. However the low idle was off and slow, additionally learned that a Gas station provider (occasionally use) had been found to have water in their gas. After reading the reviews and learning many auto mechanics swear by Sea Foam, decided to give it a try. As a woman have experienced hype, un-necessary work etc through the years. I used a funnel to add Sea Foam to my gas tank. Wow! even on shorter trip, noticed a smoother performance. With longer driving seems to have helped the idle and running even smoother! Believe that with more use will see even better performance and hopefully better milage! Do Not Hesitate, you and your vehicle are worth it! Thank you!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2025
★★★★★ 5
Good stuff for small engines
Color: 3 Pack
I use this for my lawn equipment and outdoor tools. Keeps them running great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026