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The Generac Guardian™ 14kw home standby generator has been discontinued and is not available for purchase at this time.

Generac Guardian™ 14kW Home Standby Generator

(Based on expert analysis, manufacturer ratings and customer reviews)
4.4 out of 54.4 out of 54.4 out of 54.4 out of 54.4 out of 5
15 Reviews
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Product Discontinued Product Discontinued
  • Features
  • Specs
  • 12
    Q&A 
  • 15
    Reviews
  • Articles
  • Accessories
Grade
Airooled Standby Generators
Style
Watts
14 kW
Rated Watts
Voltage
120/240 Single-Phase
Fuel
Engine
OHVI
Fully Automatic Operation When Paired With Nexus Smart Switch™

Generac OHVI Air-Cooled Engine
Features plateau honed cylinder walls and plasma-moly rings
Full pressure lubrication system w/ 2 year oil change interval
Aids in cooling the engine for longer life

Operates On Clean Burning, Efficient Natural Gas or LP (Vapor)

Skewed Rotor Design For Smooth Output Waveform "Clean Power"
Automatic voltage regulator equipped for +/- 1% regulation

Nexus™ Digital Controller Monitors & Controls All Functions
Provides system status - compatible with Nexus™ wireless monitors

Sound Attenuated Weather Proof Enclosure
Attractive styling with lockable access doors
Incorporates electrostatically applied epoxy paint technology
Sound dampening enclosure limits sound pressure to a low 66dB(A)
1' flexible fuel line and DVD manual included

Built-in Battery Charger (Battery Sold Separately)

Automatic Transfer Switch - ATS (Sold Separately)
Customize your system based on your actual application
Select the ideal ATS & DLM™ modules for load shed capabilities

Listed to UL2200 Engine/Generator Standard for Safety
Engine
Engine Brand
Generac OHVI
CC
992 CC
Consumer Engine Warranty
3 Years
Commercial Engine Warranty
3 Years
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Yes
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Surge Watts
14000 Watts
Rated Watts
14000 Watts
Fuel Type
LP/Natural Gas
NG Power Capacity
13000 Watts
LP Power Capacity
14000 Watts
NG Fuel Consumption @ 50% Load
156 (BTU: 156,000 BTU/HR) ft3/hr
LP Fuel Consumption @ 50% Load
1.56 (BTU: 141,570 BTU/HR) gallons/hr
Rated Amps
58 @ 240 Volts (Single Phase) Amps
Decibel Rating @ 7m
66 dbA
Transfer Switch
Automatic (Not Included)
Enclosure
Steel
Battery
Not Included (525 CCA)
A/C Ton Rating
3-Tons
Cooling System
Air Cooled
UL Listed
Yes
Overview
Made in USA
Yes
Weight
439 Pounds
Product Length
48 Inches
Product Width
25 Inches
Product Height
29 Inches
Consumer Warranty
3 Years
Commercial Warranty
3 Years
UPC
696471058840
Model
5884
  12 Questions
Q: Does the 5870 construction (enclosure make up) meet NFPA 37 condition 2 requirement?
by Bob from New Jersey on October 02, 2012

A: Subsection 4.1.4 of NFPA 37 reads as follows:

“4.1.4 Engines Located Outdoors. Engines, and their weatherproof housings if provided, that are installed outdoors shall be located at least 1.5 m (5 ft) from openings in walls and at least 1.5 m (5 ft) from structures having combustible walls.
A minimum separation shall not be required where the following conditions exist:

(1) The adjacent wall of the structure has a fire resistance rating of at least 1 hour.
(2)* The weatherproof enclosure is constructed of noncombustible materials and it has been demonstrated that a fire within the enclosure will not ignite combustible materials outside the enclosure.”

A4.1.4 (2) Means of demonstrating compliance are by means of full scale fire test or by calculation procedures.
Because of the limited spaces that are frequently available for installation, it has become apparent that exception (2) would be beneficial for many residential and commercial installations. With that in mind, the manufacturer contracted with an independent testing laboratory to run full scale fire tests to assure that the
enclosure would not ignite combustible materials outside the enclosure.

Per Generac Owner's Manual (All 8, 10, 14, 17 & 20kW Air Cooled Automatic Standby Generator):

The criteria was to determine the worst case fire scenario within the generator and to determine the ignitability of items outside the engine enclosure at various distances. The enclosure is constructed of non-combustible materials and the results and conclusions from the independent testing lab indicated that any fire within the generator enclosure would not pose any ignition risk to nearby
combustibles or structures, with or without fire service personnel response.

Based on this testing and the requirements of NFPA 37, Sec 4.1.4, the guidelines for installation of the generators listed above are changed to 18 inches (457mm) from the back side of the generator to a stationary wall or building. For adequate maintenance and airflow clearance, the area above the generator should be at least 4 feet with a minimum of 3 feet at the front and ends of the enclosure.
This would include trees, shrubs and vegetation that could obstruct airflow. See the diagram on the installation drawing within the owner’s manual on under the specs link for details.

Generator exhaust contains DEADLY carbon monoxide gas. This dangerous gas can cause unconsciousness or death. Do not place the unit near windows, doors, fresh air intakes (furnaces, etc.) or any openings in the building or structure, including windows and doors of an attached garage.

by Mike, Product Expert

Q: Does this self check and how long does it last on tank LP?
by Craig Pujol from Louisiana on August 30, 2012

A: When properly connected to a Generac automatic transfer switch this unit will do a weekly maintenance test.

Generac recommends a minimum 200 Gallon tank for proper emergency backup.

Fuel Consumption - LP
50% Load - 1.56 Gal/Hr
100% Load - 2.30 Gal/Hr

by Mike, Product Expert

Q: Can you suggest a generator package that will work with the Model 5449 Panel? Looking for something around 8-12kW. Thanks!
by Andres from Massachusetts on June 03, 2012

A: Any of the individual Generac home standby generators will work with model 5449 transfer panel.....here are links to the 8kW, 10kW and the 14kW models available.

Generac Guardian Model 5882 - 8kW

Generac Guardian Model 5883 - 10kW

Generac Guardian Model 5884 - 14kW

by Mike, Product Expert

Q: If I purchase a 14 KW Generac standby Gen with the 14 circuit switch, can I swap out the 40 amp breaker for a 50 amp?
by Paul from New Jersey on May 24, 2012

A: No, the internal wiring of the switch is not capable of handling the higher amperage rating. If you need a 50A breaker in the switch you need to purchase the generator by itself, model 5884, and then purchase the 16ckt switch, model RTS16EZA1, which has a 50A breaker.

Generac Model 5884

Generac Model RTS16EZA1

by Mike, Product Expert

Q: what are BTU for model 5884 ?
by Don Tillman from Pennsylvania on February 08, 2012

A: You can find the BTU ratings for model 5884 listed in the owner's manual on page 8 which can be found on the product page under the specs section.

156,000 BTU/HR at 50% Load
220,000 BTU/HR at Full Load

Owner's Manual

by Mike, Product Expert

Q: Hey Jim,

What size NG supply line is needed for a 5870 ?

3/4" or 1"

Thanks, Jeff

by Jeff from Pennsylvania on January 19, 2012

A: Pipe diameter is based on the distance the generator is from the fuel source and Generac recommends the following which should be confirmed by your installing plumber.

Max Distance 7/8kW Generac:

Natural Gas -

3/4" - 55 Feet
1" - 200 Feet

Liquid Propane -

3/4" - 165 Feet
1" - 570 Feet

by Mike, Product Expert

Q: Jim I have a 100 amp Pre-Nexus service rated transfer switch. Can I use this with a nexus generator? Ive heard there is some special wiring for the battery charger to work
by Mike Noonan from Michigan on April 18, 2011

A: There is a special kit that needs to be added to the switch to accept the 120V connection which provides the power to the internal generator controller for the charger. These kits are available from your local Generac dealer - Part Number: 0H93030SRV.



by Mike, Product Expert

Q: How far does a generator has to be from my house?
by Jim from Massachusetts on February 04, 2011

A: The manufacturer recommends the back side of the unit to be set no less then 18 inches from any non-combustible surface and the sides of the unit need at least 36 inches for proper intake and exhaust.

Note: It is recommended to check with your city, county and state codes as they may differ from the manufacturers recommendations.

by Mike, Product Expert

Q: Is this generator (Model 5884) a good choice for off grid solar system backup. 14kw not essential circuit?
by Avery Edwards from Colorado on January 25, 2011

A: The Generac 5884 generator is specifically designed for emergency backup only and will not be warranted in an off-the-grid application.

Generac did come out with a new model specifically designed for off-the-grid and solar applications.

Off Grid Generator

by Mike, Product Expert

Q: What kind of oil comes in the generator, and when it is time to change it? Can I run Mobile 1 Synthetic 5W30 year round in central Oklahoma?
by Ron Hopper from Oklahoma on January 24, 2011

A: The Generac standby generators are shipped with 5W30 oil in them and Generac does give the option to use 5W30 Synthetic in needed. The owner's manual covers all oil options and temperature ranges. Oil changes are determined by use and maintenance is also covered in the manual.

Owners Manual

by Mike, Product Expert

Q: How long would the generator run on say a BBQ size propane tank?
by Ryan from Washington on January 23, 2011

A: The Generac standby generators are not designed to operate on a 20# propane tank and they recommend a minimum 100 Gal tank for minimum backup availability.
by Mike, Product Expert

Q: Can this generator be anchored to the slab? If so, can you provide an anchor bolt layout
by Gregg Deemer from Texas on January 21, 2011

A: Generac's model 5885, as with all of their standby generators, are anchored to the pallet at all 4 corners with special anchors which can be used to anchor the unit directly to your concrete base using concrete bolts.
by Mike, Product Expert

Generac Guardian 5884 Reviews & Ratings
Overall Rating
Features
5/5
Quality
4/5
Performance
4/5
Value
4/5
Overall
4.4 out of 54.4 out of 54.4 out of 54.4 out of 54.4 out of 5
Pros
Price (1)
Cons
Unreliable (1)
15 Reviews  Sort by 
 
Gary
River Edge, NJ
Purchased from Electric Generators Direct
Purchased 9/1/11
Total Reviews
2 Reviews
REVIEWED
OCT.
31
2011
5 out of 55 out of 55 out of 55 out of 55 out of 5
Best Investment Ever
I got Generac Guardian 5884 with 100 amp service rated ATS and couldn't be happier.

Running on generator power for third day due to snow storm, and no problems at all.
Got heat hot water and lights, generator is running 24 hours a day.

With temperature in the 30s in the morning generator runs like champ. great piece of equipment.
View Image
Was this review helpful?
10
James
Terre Haute, IN
Purchased from Electric Generators Direct
Purchased 3/18/11
Total Reviews
2 Reviews
REVIEWED
APR.
16
2011
4 out of 54 out of 54 out of 54 out of 54 out of 5
Generac 5884 And Rtsx100a3 Installation
I live in a remote location, and power outages are frequent, and sometimes extended, as was the outage from the ice storm this February. I've owned a portable generator for the last 15 years, and it has performed well, although it is very limited, with a 6 KW capacity. I opted to go with a Generac 5884, 14 KW propane generator this year. This was a self-install, do-it-yourselfer project. Not to difficult for me as I'm an electrical engineer by profession.
So...........From the perspective... more
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Was this review helpful?
10
Carlos
Miami, FL
Purchased from Electric Generators Direct
Purchased 7/23/10
Total Reviews
2 Reviews
REVIEWED
SEP.
07
2010
5 out of 55 out of 55 out of 55 out of 55 out of 5
Ready For 2010 Hurricane Season
I live in South Florida and a I'm a Hurricane Andrew survivor...This year we remodeled our house and made it hurricane resistant.

I had a portable 8KW generator, but to make the house more marketable, I decided to install a standby generator. I installed a 14KW Generac 5884 and I am overall very happy with the purchase, delivery and service.

However, I have one complaint... the specs on the generator says that it has a built-in battery charger. If you read further you find out that it is... more
View Image
Mike, the Generator Expert
Product Expert
Carlos,
To properly connect to the built-in charger (Battery Sentential) the unit must be wired to a Generac automatic transfer switch. In this connection there is a single wire run from the switch (T1) back to the generator (T1) which provides the necessary 120V to the built-in battery charger which keeps the battery charged. When using a non-Generac generator you can void the warranty under their improper installation section.
more
Was this review helpful?
10
Don H.
Milton, WV
Purchased from Electric Generators Direct
Purchased 9/13/12
Total Reviews
3 Reviews
Total Helpful Votes
18 Helpful Votes
REVIEWED
NOV.
19
2012
5 out of 55 out of 55 out of 55 out of 55 out of 5
Very Comfortable
Since installing the generator, approx. 6 weeks ago, we have had 2 power failures, one of which lasted over two hours. Our generator kicked on, automatically within seconds, and we were very comfortable with complete use of all appliances.

We were the only home on our street to have power,. Many of our neighbors are now interested in adding a generator to their home.
Was this review helpful?
20
Donald M.
Smithville, WV
Purchased from Electric Generators Direct
Purchased 5/3/13
REVIEWED
JUN.
14
2013
5 out of 55 out of 55 out of 55 out of 55 out of 5
5884 Generac
This generator has been doing an outstanding job. It runs all of my appliances effortlessly. So easy starting and very smooth.
Was this review helpful?
10
Rob
Mahopac, NY
Purchased from Electric Generators Direct
Purchased 12/23/12
REVIEWED
FEB.
25
2013
5 out of 55 out of 55 out of 55 out of 55 out of 5
Replacement Generator
I had a 10 year old Generac that blew an engine during Hurricane Irene. It ran for 2 days, then no power for 3 more days. I waited too long to replace it and again lost power for 5 days during Sandy. That was it. I ordered the replacement Generac, as I was very happy with the old one and the new installation would be easier. It arrived on time and in great shape. My electrician installed it 5 days later. So far it's only had to start for the weekly test, but seems good to go. We may never loose... more
Was this review helpful?
10
Don H.
Milton, WV
Purchased from Electric Generators Direct
Purchased 9/13/12
Total Reviews
3 Reviews
Total Helpful Votes
18 Helpful Votes
REVIEWED
NOV.
19
2012
5 out of 55 out of 55 out of 55 out of 55 out of 5
Easy To Install
I would definitely recommend these systems- they are very efficient. They are a good idea with our aging power grids and the threat of terrorism (according to Homeland Security, the power grids are a target of terrorism). If one power grid system goes down, it is estimated to take 2 - 3 months before it could be restored.

This system is quite easy to install, and a friend and I installed the system in approximately 6 hours. Of course, a knowledge of electrical systems is very practical, and... more
Was this review helpful?
10
Ann
Purchased from Electric Generators Direct
Purchased 8/13/12
REVIEWED
SEP.
25
2012
5 out of 55 out of 55 out of 55 out of 55 out of 5
So Far...so Good!
I purchased the 14 Kw Generac Standby Generator in August, 2012, and had an electrician install it. Because I was away for a trip in early September, I did not run the generator on "Automatic" until I returned.

I have been home long enough for it to self-test twice and it did so right on time! While the best scenario would be for me to never have to use it, I now feel much more secure about our New England weather patterns of recent years.

I had been without power twice -... more
Was this review helpful?
10
Jim S.
Huntington, WV
Purchased from Electric Generators Direct
Purchased 7/6/12
Total Reviews
2 Reviews
REVIEWED
AUG.
06
2012
5 out of 55 out of 55 out of 55 out of 55 out of 5
Recommended
Haven't had a chance to use the generator yet, but the exercising is right on schedule as programmed. Pricing was identical everywhere I looked.

The professional and knowledgeable staff of your company was the reason I chose Electric Generators Direct.com.

Your staff has been very helpful and courteous throughout the process. The Generator was delivered on time, the friendly driver unloaded it and placed it where I asked him to.

I will recommend your company to my friends.
Was this review helpful?
10
Jerry
Purchased from Electric Generators Direct
Purchased 3/29/12
REVIEWED
MAY.
02
2012
5 out of 55 out of 55 out of 55 out of 55 out of 5
You Can't Scare Me W/ Darkness & Melted Ice Cream Anymore!
It's not just ice storms and blizzards in the winter. Summer time people knocking down utility poles during the summer months. We feel a whole lot more secure knowing that the generator will kick in when the world wants us to go dark. The generator was delivered on time and in good shape. The delivery service man was great getting the generator straight into the barn off the truck before installation. He insisted that we take off the cardboard covering to make sure that there was no damage. The... more
Was this review helpful?
10
Jeff
Spring, TX
REVIEWED
NOV.
18
2010
5 out of 55 out of 55 out of 55 out of 55 out of 5
Clean Power
I have several UPS devices for maintaining power to computers etc. and they are very sensitive to power fluctuations. When on generator power and my AC unit comes on, the UPS devices do not switch to battery or even alarm.

The generator delivers clean power even during high transient loads like an AC unit starting. I am very impressed with this generator.
Was this review helpful?
10
 


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5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
4 Reviews
 1   Q&A
$32.97 



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Shop for the Generac Guardian™ 14kW Home Standby Generator at Electric Generators Direct. Research Generac Guardian 696471058840 standby air-cooled generators online. Find Generac Guardian 5884 standby air-cooled generators & Guardian 14KW liquid propane and natural gas operated generator features and specifications.