Automatic Standby Generator,20LP/18NG kW close
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Automatic Standby Generator, 20LP/18NG kW

GENERAC

Price: $5,712.00 / each

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Typically in Stock
4.9 Stars
4.9 of 5
  • Item # 2ZMG9
  • Mfr. Model # 6250
  • UNSPSC # 26111604
  • Catalog Page # 1368
  • Shipping Weight 516.0 lbs.
Country of Origin USACountry of Origin is subject to change.

Technical Specs

  • ItemAutomatic Standby Generator
  • Engine Cooling MethodAir
  • kW20 LP/18 NG
  • kVA Rating20 LP/18 NG
  • Voltage240V
  • Height29"
  • Width25"
  • Length48"
  • Enclosure MaterialAluminum
  • Fuel TypeNatural Gas/ LP
  • Engine BrandGenerac OHVI
  • Engine Size999cc
  • Engine RPM3600
  • Amps @ 120/240V, 1 PhaseLP 83.3 / 75 NG
  • NG Consumption @ Half Load294 cu. ft./hr.
  • LP Consumption @ Half Load2.9 gph
  • Hz60
  • Sound Level dBA66
  • Automatic Volts RegulationYes
  • Battery IncludedNo
  • 12VDC Battery ChargerYes
  • Battery Requirements525 CCA
  • Engine (Block Heater)Yes or No
  • Fault Indicator LightsYes
  • Fuel NPT Pipe Connection Sz.3/4"
  • High Temp. AlarmYes
  • Low Oil Pressure AlarmYes
  • Min. Gas Pressure @ Generator (In WC)5 to 7/10 to 12
  • Over Crank ProtectionYes
  • Phase1
  • Power Factor1
  • Repeat of Exercise Cycle7 Days
  • Run Time Hour MeterYes
  • Main Circuit BreakerFuse Built Into Controller; Circuit Breakers are Located in the Transfer Switch
  • Over SpeedYes
  • Includes1 Ft Flexible Fuel Line Connector
  • StandardsUL, CSA, NEMA, EGSA

Compliance and Restrictions


This product contains a chemical that is regulated under California Proposition 65.

Warning: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.


Rated 4.9 out of 5 by 221reviewers.
Rated 5 out of 5 by Dependable. I previously owned a portable Generac and upgraded to a whole house unit. The products are well made and have been very dependable. I am secure in knowing the Generac whole house generator will protect my family from power outages. June 27, 2014
Rated 5 out of 5 by Peace of Mind We are very happy with our Generac generator. After the last horrible winter we had and trying to keep our portable generator going in the extreme temps every time our power went out decided us it was time for an automatic back up generator. It is nice to have the peace of mind not to have to worry any more. June 25, 2014
Rated 5 out of 5 by Works like a charm and the installation was a quality job All the office personnel and workers installing the system were very professional and accommodating. Training on the generator was thorough. Had a 23 hour power outage a few weeks after installation and we hardly noticed the difference. June 23, 2014
Rated 5 out of 5 by Excellent product; I highly recommend it! We had a 2400+ sq ft home built in 2010. During the design phase I told the builder I wanted a whole house generator. My only requirements were that I wanted to be able to turn on every light in the house, run two refrigerators, a freezer, the oven, the A/C, and any other appliance we had in the house in the event of a utility failure. The electrician spec'd a Generac 20KW natural gas unit that would be converted to use our LP gas. This unit fires up every Wednesday at 09:00 AM going through its self-test. I perform the the routine maintenance on it myself (oil changes, air filter, spark plugs). Maintenance is a simple as a typical lawn mower tune up; it couldn't be easier. Although we have not had any extended power outages to really test the unit, I feel quite confident it can handle anything we need from it. My wife and I are both retired and don't need any surprises at this stage in our life; our Generac 20KW generator gives us a piece of mind neither of us had in previous homes. June 18, 2014
Rated 5 out of 5 by Ready for the next outage After talking about installing one for several years we finally bought one this spring. Installation was fairly straight forward. Fired right up following instructions and and powers the entire house June 11, 2014
Rated 5 out of 5 by Quiet, excellent value, fantastic installation team Researched four different brands, by far Generac is the best for overall performance and value. June 2, 2014
Rated 5 out of 5 by We love our generator &love having it connected to my cell phone! We are so pleased with our Generac Generator! We love how you can have it connected to your cell phone. We are a very happy customer! May 7, 2014
Rated 5 out of 5 by Best investment I made for my home Without a doubt well worth what I paid has not faltered once used it a couple of times when power went out Awsome to have full power ac and heat I am the envy of my naibors have enjoyed the comforts it provided during the outages have talked my neibors to get one ! Generac Rocks !!! April 21, 2014
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Product Q&A

(4 Questions : 4 Answers)

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Field of Industry:: Manufacturing
Product used for:: emergency back up
Years purchasing from Grainger:: 15
1 year, 11 months ago
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Answer: 
No, it does not. If you were to go and click on the Optional Accessories tab when you have this generator pulled up, it will list the possible transfer swtiches that are compatible with this generator.

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1 year, 11 months ago
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Can I install this unit in my basement and exhaust thru the wall to the outside?
1 year, 9 months ago
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Answer: 
No, this generator as most, are designed for outdoor placement only.

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1 year, 9 months ago
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If the composite mounting is either not available separately for #2ZMG9 or not recommended for use with that item then what type of base does the manufacturer recommend on installation of the 2ZMG9?
1 year, 8 months ago
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Answer: 
All of the air cooled units in this line have the composite mounting pads included as this one, 2ZMG9.

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1 year, 8 months ago
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I need a three phase generator , I would like to know if this one solve my needs.
9 months ago
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Answer: 
All Air-Cooled units are single phase only. If you are looking for a three phase generator, I would refer to a Liquid Cooled, Protector Series, or Industrial unit.
9 months ago
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