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The cummins 20gsbb-6713a - 20kw home standby generator has been discontinued and is not available for purchase at this time.

Cummins 20GSBB-6713A - 20kW Home Standby Generator

(Based on expert analysis, manufacturer ratings and customer reviews)
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
1 Review
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  • Features
  • Specs
  • 2
    Q&A 
  • 1
    Reviews
  • Articles
  • Accessories
Grade
Airooled Standby Generators
Style
Watts
20 kW
Rated Watts
Voltage
120/240V
Single-Phase
Fuel
Engine
Powered By A 993cc Air-Cooled V-Twin OHV Engine
Automotive-style lubrication system w/ Spin-on oil filter

Weather Protective Sound Enclosure
Made of thick, 11-gauge powder coated aluminum
All maintenance points are easily accessible w/o tools
Large, low noise, automotive grade corrosion resistant muffler

Cummins Proprietary Control System
Self-diagnostics, gen-set protection and safety features

Internet & E-Mail Capability
Monitor gen status online & can email if service is required

In-Home LCD Display
Easily monitor, run and exercise generator

Easy Installation
Innovative molded polymer base - no need for a concrete pad
Lift-off enclosure for close proximity installs & 12" fuel line

Warm Weather Model - Designed For Use Above 32F

Automatic Transfer Switch - Sold Separately

5 Year or 2000 Hour Limited Warranty
Model
  Model Number:20GSBB-6713A
 Manufacturer:Cummins Power Generation
 Made in USA:Yes
Engine
 Brand:Cummins Onan
 HP/CC:993 cc
 Consumer Engine Warranty:5 Years
 Commercial Engine Warranty:Not Available
 Engine RPM:3600 RPM
 Low Oil Alert/Shutdown:Yes
Product Specs
 Voltage120/240 Single-Phase
 Frequency:60 Hertz
 Cooling SystemAir Cooled
 Fuel TypeLP/Natural Gas
 NG Power Capacity17,280 Watts
 LP Power Capacity19,000 Watts
 NG Consumption (50% Load)135 ft³/hr (BTU: 135,000 BTU/HR)
 NG Consumption (100% Load)240 ft³/hr (BTU: 240,000 BTU/HR)
 LP Consumption (50% Load)1.5 gallons/hr (BTU: 136,125 BTU/HR)
 LP Consumption (100% Load)3.0 gallons/hr (BTU: 272,250 BTU/HR)
 Rated Amps:83 Amps @ 240 Volts (Single Phase)
 Decibel Rating @ 7m:62 db(A)
 A/C Ton Rating5-Tons
 EnclosureAluminum
 Mounting PadComposite (Included)
 Transfer Switch:Automatic (Not Included)
Overview
 Battery:Not Included (530 CCA)
 UL ListedYes
 Weight:540 Lbs. (244.94 kilograms)
 Dimensions:53"L x 43"W x 34.7"H
(134.62 x 109.22 x 88.14 cm)
 Consumer Warranty:5 Years
 Commercial Warranty:Not Available
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  2 Questions
Q: 1. I have been advised that the Cummins Onan warranty only remains affective if a certified CO technician installs and annually services the unit - And that the service contract (locally $500/yr) is only for routine check and does not cover any actual repair or parts. This is onerous - Is it accurate and standard for the CO brand?
2. Is there a formula or chart where I can plug in #s to calculate how long a certain # of KW will run per gallon of propane? (ie, How long would a 20,000 KW unit run at full capacity on 300 gal of LP?)

by Anna Kerr from Virginia on October 21, 2013

A: We have confirmed with Cummins Onan....

"The Cummins Onan warranty covers the product for quality & workmanship. These products can be installed by a qualified contractor and the warranty stays with the product. They can also be maintained by whomever the owner is comfortable with."

The fuel consumption information is available on the manufacturers specification sheet and the 20kW model uses the following....

25% - 1.0 Gal/Hr.
50% - 1.5 Gal/Hr.
75% - 2.1 Gal/Hr.
100% - 3.0 Gal/Hr.

You can calculate the full load (100%) based on a 24 hour time period.

3.0 x 24 = 72 Gal Per Day

This should help you determine the tank size for maximum usage. Please keep in mind that fuel consumption is based on the load put on the generator. So, if you are conscious of what you are running in the home and keep the loads low you will use lower amounts of fuel.

RS20 Specification Sheet

by Mike, Product Expert

Q: What transfer switch would go with the RS20A oNAN GENERATOR . Does Onan have a transfer switch like Generac 16 circuit ?
by Pete from Maryland on June 09, 2012

A: Cummins Onan does not have a 16ckt switch available. They only offer either whole house switches with service entrance disconnects or switches that would power sub-panels. You could install a small sub-panel and put your emergency circuits in it and have the generator power that panel only.

Here is a link to the switches they offer:

Cummins Onan Transfer Switches

by Mike, Product Expert

Cummins Power Generation 20GSBB-6713A Reviews & Ratings
Overall Rating
Features
5/5
Quality
5/5
Performance
5/5
Value
5/5
Overall
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
Pros
Alway Order This Unit Fo... (1)
Reliable (1)
Quiet (1)
Durable (1)
Cons
None to display.
1 Review  Sort by 
 
Anthony R.
Fairfield, NC
Most Helpful Positive Review
REVIEWED
APR.
24
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Cummins 20gsbb - 6713a Home Standby Generator
I have installed lots of these generator they are perfect for a small house with one large a/c or two small a/c units. They have good power and will operator your lights and heat if needed. When installed by a certified Cummins Onan dealer and properly maintained they will last for years. I have installed Generac and Cummins unit and the Cummins is by far a better generator. I would recommend the Cummins Onan to anyone interested in purchasing a small standby generator.
Pros: Durable, Quiet, Reliable, Alway Order This Unit For Cold Weather Start Features
Anthony Recommends This Cummins Power Generation Product
Was this review helpful?
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Shop for the Cummins 20GSBB-6713A - 20kW Home Standby Generator at Electric Generators Direct. Research Cummins Power Generation standby air-cooled generators online. Find Cummins Power Generation 20GSBB-6713A standby air-cooled generators & cummins onan 20 kw natural gas generator features and specifications.