SKU: 31361363281

Commercial Universal Heavy Duty 85 Gal. 399.9K BTU Natural Gas Tank Water Heater

Sale price$4949.85 Regular price$5499.83
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Description

Commercial Universal Heavy Duty 85 Gal. 399.9K BTU Natural Gas Tank Water HeaterThe Rheem Commercial Universal Gas Water Heaters are expertly crafted to seamlessly integrate into constrained retrofit spaces while delivering robust performance to handle rigorous usage demands. Its compact dimensions and versatile water connections streamline installation processes, especially in tight commercial settings. Notably, this model necessitates a 120 Volt power source for operation. Key features include a space saving design with short

The Rheem Commercial Universal Gas Water Heaters are expertly crafted to seamlessly integrate into constrained retrofit spaces while delivering robust performance to handle rigorous usage demands. Its compact dimensions and versatile water connections streamline installation processes, especially in tight commercial settings. Notably, this model necessitates a 120-Volt power source for operation. Key features include a space-saving design with short heights and narrow jacket diameters, alongside multiple water inlet/outlet options for installation flexibility. The System Sentinel LED diagnostic system ensures operational integrity with sequential verification. Its robust tank design, fortified by a proprietary steel formulation and patented multi-flue architecture, coupled with stainless steel burners, promises durability and efficiency. Further enhancing convenience, the low-profile automatic flue damper reduces product height, while a factory-installed full-port brass drain valve facilitates swift maintenance. The direct spark to pilot ignition system optimizes energy consumption by igniting only when heat is required. Engineered for longevity, corrosion-resistant components and thorough insulation ensure enduring performance. Additionally, the gas control system allows precise temperature adjustment and accommodates various configurations, ranging from 35 to 100 gallons, with customizable BTU/h options in natural gas and liquid propane. However, compliance regulations restrict sales, shipments, or installations in specific regions based on emissions requirements, as detailed for residents of California, Utah, and Texas.

Dimensions

Product Depth (in.)

26.25 in

Product Height (in.)

78.813 in

Product Width (in.)

26.25 in

Tank Valve Size (in.)

1.5 in

Vent diameter (in.)

10 in

Water Connection Size (in.)

1-1/2 in

Details

Application Type

Commercial

BTU Rating

399900

Finish Family

Gray

First Hour of Delivery (gallons/hr)

447

Fuel Type

Gas

Gas Connection Size

3/4 in

Gas Type

Natural Gas

Household Size

5+

Indoor/Outdoor

Indoor

Maximum Temperature (F)

180 F

Minimum Temperature (F)

70 F

Nominal Tank Capacity (gallons)

85 gal

Pack Size

1

Product Weight (lb.)

640 lb

Recovery Rate at 90F Rise (gallons/hour)

431

Returnable

90-Day

Tank Lining Material

Glass

Tank Warranty

3 Year

Uniform Energy Factor

0

Vent Type

Atmospheric

Water Heater Features

Glass-Lined Tank, Temperature Pressure Relief Valve

Water Heater Profile

Tall

Warranty / Certifications

Certifications and Listings

CSA Listed, UL Listed

Labor Warranty

No Warranty

Part Warranty

1 Year

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: 31361363281

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Gordon
Lake Worth, US
★★★★★ 4
Happy happy
Not bad kind of pricey that's all definitely would buy from them again
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Reviewed in the United States on February 4, 2026
K
KBar
Port Orchard, US
★★★★★ 5
Heavy-Duty 4 AWG Cable With Flexible Insulation
Size: 10ft, Color: 4awg
I am satisfied with this 4 AWG cable. The insulation coating is soft, and the cable itself is very pliable, making it easy to bend and route into the configuration needed for installation. Despite the flexibility, it still feels like a heavy-duty cable designed to handle demanding applications. I am using this cable to provide the necessary amperage to start the generator on my trailer, and it performs as expected. I also like that the wire gauge and cable properties are clearly printed along the side of the insulation, making identification easy during installation or future maintenance. The cable arrived in good condition with no obvious odor from the insulation or packaging. Overall, this appears to be a quality heavy-duty cable that is flexible, easy to work with, and suitable for high-current applications.
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Reviewed in the United States on May 8, 2026
H
hazard2k
Waukegan, US
★★★★★ 5
True copper battery cables that are high quality
Size: 10ft, Color: 4awg
I love having heavy duty cable on hand for my cars. It's so nice to be able to make your own starter and alternator cables when restoring cars. These cables are 100% copper, not CCA (copper clad aluminum) like many others are. Copper is far superior for conductivity and handling higher loads. The rubber on the cable is thick and yet very flexible..it's clearly marked and seems very durable. I like to use a hydraulic crimping tool and then add marine grade heat shrink tubing with the adhesive inside of it to keep it as weatherproof as possible.
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Reviewed in the United States on May 10, 2026
S
Verified Purchase
Scott Naugle
Chelsea, US
★★★★★ 5
Ofc 1/0
Color: Black, Size: 25 Feet
Absolutely was as described..it's true welding lead...at least what I was sent, yes it was packaged in their packaging and logo.. TRUE 1/0 OFC!!! used as power for my system in my car
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Reviewed in the United States on October 7, 2025
A
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Amazonian
Battle Creek, US
★★★★★ 5
Great cable
With no other reviews I was a bit hesitant to buy this cable at first. I've seen so many other brands and sellers that sell cable that is half the gauge they claim. Or cable that is not totally copper and has tin or other poor metals in it. Especially at this low price I worried. I went ahead and bought some anyway though and figured I would chance it. For the amount of money I'd be saving it was worth it. If it wasn't as advertised I could just return it anyway. It arrived in a couple days. It is truly 1/0 AWG, and it is 100% copper. Strands packed dense but still flexible. Comes in a nice carry case. I crimped and soldered on some ends. Everything looks great and is working great. Would definitely recommend and would buy again.
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Reviewed in the United States on January 3, 2016

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