Skip Content

Automtc Standby Generator,Liq,NG/Propane close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
Megaphone How can we improve our Product Images?

This item has been discontinued and is unavailable for purchase. Check the Alternate Products selection below for options. For more information call 1-800-GRAINGER (472-4643).

Automtc Standby Generator, Liq, NG/Propane

Price: NA

Activate Now

to save with

Select AdvantageSM

Item no longer available

  • Item # 2ZNF5
  • Mfr. Model # QT02515ANSX
  • UNSPSC # 26111604
  • Catalog Page # 1397
  • Shipping Weight 901.0 lbs.
Country of Origin USACountry of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • ItemAutomatic Standby Generator
  • Engine Cooling MethodLiquid
  • kW25 LP/25 NG
  • kVA Rating25
  • Voltage120/240
  • Height40"
  • Width36"
  • Length77"
  • Enclosure MaterialSteel
  • Fuel TypeNatural Gas/Propane
  • Engine BrandGenerac
  • Engine Size1.5L
  • Engine RPM3600
  • Amps104
  • NG Consumption @ Half Load430 cu. ft./hr.
  • LP Consumption @ Half Load4.7 gph
  • Hz60
  • Sound Level dBA59 Exercising At 7m or 72 Normal Operation At 7m
  • Automatic Volts RegulationYes
  • Battery IncludedNo
  • 12VDC Battery ChargerYes
  • Battery Requirements26
  • Engine (Block Heater)Optional
  • Fault Indicator LightsYes
  • Fuel NPT Pipe Connection Sz.3/4"
  • High Temp. AlarmYes
  • Low Coolant Level AlarmYes
  • Low Oil Pressure AlarmYes
  • Main Circuit BreakerYes
  • Min. Gas Pressure @ Generator (In WC)5 to 14
  • Over Crank ProtectionYes
  • Phase1
  • Power Factor1.0
  • Repeat of Exercise Cycle7
  • Run Time Hour MeterYes
  • Over SpeedYes
  • StandardsUL cUL, CSA, NEMA, EGSA
Megaphone How can we improve our Technical Specifications?

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.



Alternate Products

Rated 4.5 out of 5 by 8reviewers.
Rated 5 out of 5 by invaluable! We have had our propane 25kw generac for 12 years now. Many storms, power outages and general electrical problems and our unit never gave us cause for concern. One of the best investments for our house we ever made. The unit is quiet compact and sturdy. Change the oil air filter oil filter plugs and you are good to go! Great job GENERAC! We are building a new home and it will be another GENERAC GENERATOR for us.frankiebabe March 14, 2015
Rated 4 out of 5 by can't truly rate this yet but i did I have a 36kw guardian series generac. we had a number of power outages here in southwest Oregon due to weather bringing down power lines to drunks hitting power poles. one time the power was out for 8 days and we were freezing our butts off since it was winter. when the power finally was restored the inhouse temp was 40 degrees f. so last year I decided to to get a generator to power the whole house since all we have here is electrical power. wouldn't you know it we haven't had a power outage in over a year. I do feel secure though in the knowledge I have a great alternative to keep us somfy when the power does go out which will be inevitable. May 23, 2014
Rated 5 out of 5 by Excellent product I have owned this 25kw generac generator since 3/30/2006. We have lost power many times since installation, mainly due to hurricaines. My generator has worked great. we do our entire house. Our only problem has been rusting of the exterior shell and I am now looking for an aluminum enclosure. April 2, 2013
Rated 4 out of 5 by HAD UNIT REPLACED My new engine from 12/2/11 failed,1.6 Chery Generac replaced entire unit with 1.5 Mistsu engine on 10/23/12. Hope it works as well as it sounds. Company stood behind warranty after two tries to fix. November 19, 2012
Rated 3 out of 5 by Had problem with this unit. I purchased this unit new 3/1/11, and had to have the engine replaced at 21.9 hrs. after it blew two oil filters on 10/26/11.I had to go through a lenghty new oil pump replacement , relief spring replacement process before a new engine was ordered, delvered and finally it was installed 12/2/11.Generac started my warranty over, and the unit has self tested three times since this date. Working fine now.I bought an extended warranty also just in case. December 26, 2011
Rated 5 out of 5 by Now I don't worry when I leave town. We live eight miles north of the nearest town and the high winds cause trees to fall on the power lines often. Since we have a well, when there is no power we have no water. Last year we had our whole house generator installed and now have 'peace of mind'.The unit does the weekly self test, is quiet and never fails to kick in when the power goes out. I wish I would have been able to talk my wife into this many years ago. November 22, 2011
Rated 5 out of 5 by Our Generac gives us security and peace of mind in all kinds of wild weather. We've had our Generac for just about a year. It has served us well through a few small power failures, Hurricane Irene and the freak snowstorm on the East Coast on October 29, when our neighborhood was without power for eight long days. It tests itself once a week. It goes on automatically when the power fails and enables our family to live our normal lives--hot showers, hot meals, lights and television. I can even run the dishwasher and washing machine with no problem. I cannot recommend this product enough in these days of wild, extreme weather! November 22, 2011
Rated 5 out of 5 by Product is self sufficient Product runs on a weekly test schedule that is unobtrusive and lists any problems it may have found with the unit. Recently we had a hurricane and it automatically turned on while the power was out for 5 days. We had evacuated, but readouts tell us that it ran steadily for about 3 1/2 days continuously and provided power that kept all our refrigerators up and running. We are very pleased with the item! October 6, 2011
  • 2015-10-03T19:57:55.704-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_8, tr_8
  • loc_en_US, sid_2ZNF5, prod, sort_default
1-8 of 8

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.