Universal™ is a family of commercial gas water heaters that are designed to fit into tight retrofit applications

Features & Benefits – The tighter the commercial retrofit, the more you will appreciate how the Universal’s compact size and multiple water connections simplify installations. Choose from 80% thermal efficiency models that range from 98,000-399,900 Btu/h and have maximum temperature setting of 180 degrees Fahrenheit.

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.

Patented Technology – Universal’s 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. Heavy duty vent hood supports are designed to withstand the rigors of installation. Full-port, Full-flow Drain Valve Factory installed brass drain valve allows for faster draining and servicing.

Direct Spark-to-Pilot Ignition System – Energy saving ignition that ignites pilot only when there is a call for heat.

Altitude Certifications – Up to 5,000 feet for natural gas and 2,000 feet for LP; with high altitude certification kit, up to 8,000 feet.

Patented Anode Rods – Anode design utilizes multiple magnesium rods to ensure corrosion resistance for a long tank life.

50 G50-98 98,000
75 G75-125 125,000
82 G82-156 156,000
76 G76-180 180,000
35 G37-200 199,900
76 G76-200 199,900
91 G91-200 199,900
100 G100-200(A) 199,900
40 G72-250(A) 199,900
100 G100-250(A) 250,000
100 G100-270(A)  250,000
42 G72-300(A) 170,000
85 G85-300(A) 300,000
100 G100-310(A) 300,000
65 G65-360(A)  310,000
65 G65-400(A) 360,900
85 G85-400(A) 399,900
100 G100-400(A) 399,900


GN75-125 125,000
82 GN82-156 156,000
35 GN37-200 199,900
76 GN76-200 199,900
91 GN91-200 199,900
100 GN100-200(A) 199,900
72 GN72-250(A) 250,000
100 GN100-250(A) 250,000
100 GN100-270(A) 270,000
65 GN65-360(A) 360,000
100 GN100-400(A) 399,900
75  GNU75-125 125,000
82 GNU82-156  156,000 
35 GNU37-200 199,900
76 GNU76-200 199,900
91 GNU91-200 199,900
100 GNU100-200(A) 199,900
40 GNU72-250(A)  250,000
100 GNU100-250(A) 250,000
100 GNU100-270(A) 270,000
65 GNU65-360(A) 360,000
100 GNU100-400(A) 399,900

(A) Indicates available ASME Model

G100-200G100-250G75-125G76-200-1G85-400GN75-125GNU75-125G75-200-1 NGG100-200 NGG75-125 NGG65-360-1 NGG72-250 NG G60-50N-1 G76-200-1 LP G75-125 LP


Tank – 3 Years

Parts – 1 Year

KwikComfort® Financing can help make your purchase even easier.
Ruud makes it easy to find a financing option that works for you! With many options and benefits available, KwikComfort Financing is the best way to get the home comfort you need without the wait.

  • Applications made easyWe'll help you avoid lengthy contracts, headaches and hassles.
  • Kwik credit decisionsYou'll get an answer to your application within minutes.
  • Fast credit for the futureFinance your Ruud equipment and anything you want to add later.
  • Reduced interest/fixed paymentsGet low interest and fixed monthly payments until the purchase is paid.
  • Minimum monthly paymentTake advantage of convenient monthly payments that fit your budget.
  • Deferred interest/no interestEnjoy interest-free payments as long as the balance is paid by the due date.