Model # 6462

Internet #205399650

Generac 16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch
0696471064629

Discontinued Generac

16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch

  • Generac for reliable and affordable home back up power solutions.
  • The Generac OHVI engine is purpose-built for extended run times
  • True Power Technology delivers best-in class power quality

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Product Overview

Generac 16,000-Watt Guardian Series provides the automatic backup power you need to protect your home and family during a power outage. Connected to your existing LP or natural gas fuel supply, it kicks in within seconds of determining power loss automatically and runs for as long as necessary until utility power returns. Control your power. Control your life.

  • System includes: 20,000-Watt generator, 200 Amp transfer switch, evolution controller and composite mounting pad; mobile link and 26R battery purchased separately
  • Your guardian series generator might have to get you through days or weeks without utility power, Generac OHVI engine, specifically designed for generator use, provides the reliability to power through the most severe outages
  • Evolution controller is the next generation of intuitive controllers featuring a multilingual, 2-line LCD text display with color-coded, backlit buttons
  • Third-party certified to NFPA standards to be installed as close as 18 in. from the home's exterior wall, provided it is located away from doors, windows and fresh-air intakes and unless otherwise directed by local codes
  • When combined with a pre-wired transfer switch or smart switch, re-engineered connection points and composite mounting pad, the guardian series 16,000-Watt generator is easy to install
  • In areas with low natural gas pressure, the guardian series 16,000-Watt generators can operate on natural gas pressures of only 3.5 in. of water column
  • Our durable powder-coat finish helps make the sturdy, galvanneal steel enclosure perfect for all-weather conditions, it's also able to withstand 150 MPH winds, optional aluminum available, recommended for salt-air locations
  • Switch between natural gas and LP fuel in the field in a few seconds, without the need for any tools
  • True power technology provides best in class power quality with less than 5% total harmonic distortion means clean, smooth operation of your sensitive electronics and appliances
  • Thanks to quiet-test, your guardian series home standby generator runs its weekly self-test at a lower RPM for only five minutes, its quieter than other brands and consumes less fuel, choose your schedule weekly, bi-weekly or monthly
  • Take advantage of Generac mobile link cellular remote monitoring system and check on your generators status using your computer, tablet or smartphone, even when you are away, sold separately
  • Power outages don't always occur during normal working hours, that's why Generac's customer care call center right here in wisconsin provides support any time of day or night, all year long, Generac is standing by 24/7, every minute of every day, to answer your questions
  • 5-years limited warranty
  • Download the "Warranty" document from the info and guide section of this web page; then the follow the instructions to claim your FREE 10 year extended warranty!



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Customer Questions & Answers

64 Questions114 Answers

Customer Questions & Answers

16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch
16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch

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6 answers

how much gas would the 16kw burn per hour?

This question is from 16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch
Asked by
bahamas
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May 1, 2015
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Answers (6)

Asked by
Va
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Home Improvement Profile: Professional
May 7, 2016
Answer: 
The gas company installed a larger gas meter, free of charge, and they bill on volume. With the larger meter which has a larger pipe the volume is less and so for my regular billing the gas bill is less. The generator ran for over 13 hours solid during an ice storm with multiple lines and limbs down all over the surrounding area....my gas bill for that month was less than the bill for that same month a Read More
The gas company installed a larger gas meter, free of charge, and they bill on volume. With the larger meter which has a larger pipe the volume is less and so for my regular billing the gas bill is less. The generator ran for over 13 hours solid during an ice storm with multiple lines and limbs down all over the surrounding area....my gas bill for that month was less than the bill for that same month a year ago without the generator. Loving it. Read Less
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Asked by
Rhode Island
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November 13, 2015
Answer: 
For those of you who are not engineers, if this unit burns 312,000btu's/hr, at the current price of $2.10 per MMBtu (million British thermal units) the cost would be about $0.70 per hour at full load.
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Asked by
Northern New York
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November 13, 2015
Answer: 
The answer actually depends upon the type of fuel you are using, the load on your generator and even what you are looking for in a value.
The Automatic Transfer Switch with this particular unit is a Service Entrance ATS Rated for a Whole House. With this in mind, I will assume a Full Load and therefor provide the fuel consumption rate at Full Load.
On Natural Gas the Full Load fuel consumption would be
Read More
The answer actually depends upon the type of fuel you are using, the load on your generator and even what you are looking for in a value.
The Automatic Transfer Switch with this particular unit is a Service Entrance ATS Rated for a Whole House. With this in mind, I will assume a Full Load and therefor provide the fuel consumption rate at Full Load.
On Natural Gas the Full Load fuel consumption would be 261 Cubic Feet Per Hour. Your Natural Gas must provide at least 1000 BTU per Cubic Foot, so at Full Load you would consume 261,000 BTU Per Hour. (so your answer here is in BOTH Cubic Feet Per Hour AND in BTU Per Hour AT FULL LOAD.)
On Liquid Propane the Full Load fuel consumption would be 2-1/2 Gallons Per Hour. (2.51 but you may not be able to see the decimal point) This would be 91 Cubic Feet Per Hour. Your Liquid Propane must provide at least 2,520 BTU per Cubic Foot, so at Full Load you would consume 229,320 BTU Per Hour. (so your answer here is in; Gallons Per Hour, Cubic Feet Per Hour AND in BTU Per Hour AT FULL LOAD.)
Now, when your generator starts and runs an exercise cycle - it does not switch your home over to generator power - so it starts and runs at a Low Idle. It consumes very little fuel of either type. And the exercise cycle provides an audible confirmation that your generator is ready & able to start & run. This while self lubricating, so it has the ability to provide two services in the exercise cycle.
The homes I have been involved with - although they may have a 200 Amp service entrance - they don't consume 200 Amps. With no one home I've witnessed 10 Amp & less power consumption. Right down to 4 Amps. So, your load doesn't have to be Full Load every time your generator starts, it will vary with who is home and what they need to power.
These are the basics you should know & understand about fuel consumption.
If you live in very hot or very cold climates, or at a high elevation - you should talk to your fuel supplier about the effects which can take it outside of "basic".
I hope this helps.
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Asked by
Columbia, South Carolina
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May 1, 2015
Answer: 
How much gas depends greatly on the load your house presents. Generac's specifications say it uses 312 cuft/hr at full load, 193 at half load. Unless you run a couple of air conditioners and a clothes drier or cooking range, you'll very likely be well under full load. So a reasonable answer is, well under 300 cuft/hr.
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Asked by
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May 1, 2015
Answer: 
When operating at full load on a natural gas fuel source, Generac's 16kw automatic standby generator, model number 6462, will require fuel consumption ratings of 312,000 btu/hr and 3.5-7" water column. When operating at half load on natural gas, the unit will require 193,000 btu/hr and 3.5-7" water column. Please note that the unit's fuel line should be sized for use at full load. Unfortunately, we are Read More
When operating at full load on a natural gas fuel source, Generac's 16kw automatic standby generator, model number 6462, will require fuel consumption ratings of 312,000 btu/hr and 3.5-7" water column. When operating at half load on natural gas, the unit will require 193,000 btu/hr and 3.5-7" water column. Please note that the unit's fuel line should be sized for use at full load. Unfortunately, we are unable to provide a consumption rating for your personal configuration, as fuel consumption will fluctuate with the amount of loads placed on the unit. If you have any additional comments, questions, or concerns, please contact us directly at 888-GENERAC (436-3722). Read Less
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May 1, 2015
Answer: 
At full load this Generac 16k Air Cooled Standby Generator burns 312 cu/ft of natural gas per hour.
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4 answers

Will this unit run on propane tanks?

This question is from 16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch
Asked by
Shreveport, LA
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June 15, 2015
If it does not, can you recommend a unit that does?
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Answers (4)

Asked by
Northern New York
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November 12, 2015
Answer: 
YES. This unit will run on either Natural Gas OR Liquid Propane. It is shipped from Generac ready to be connected to Natural Gas BUT is easily switched to Propane. The manual will tell you how to switch it from the one fuel source to the other.
On Propane this unit will use about four gallons of fuel per hour at full load. So plan your tank size accordingly. Your Propane fuel supplier should be able to
Read More
YES. This unit will run on either Natural Gas OR Liquid Propane. It is shipped from Generac ready to be connected to Natural Gas BUT is easily switched to Propane. The manual will tell you how to switch it from the one fuel source to the other.
On Propane this unit will use about four gallons of fuel per hour at full load. So plan your tank size accordingly. Your Propane fuel supplier should be able to help you in this decision.
Don't worry about the weekly exercise cycle as the generator does not transfer power - it merely starts and runs at a low idle to self lubricate. (It also provides an audible proof that it is in proper working order.) It consumes very little during this exercise.
Hope this helps.
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Asked by
Hauppauge, NY, USA
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November 6, 2015
Answer: 
Small BBQ size tank may work for a short while if it's warm out. when it's cold most likely not. The smallest tank recommended is a 250 gallon tank. A large tank is needed to make sure the propane delivered to the generator is in a gas form not a liquid.
When the generator is at a high load it uses a large amount of propane gas. The propane tank has liquid and gas forms of propane in it. As the propane Read More
Small BBQ size tank may work for a short while if it's warm out. when it's cold most likely not. The smallest tank recommended is a 250 gallon tank. A large tank is needed to make sure the propane delivered to the generator is in a gas form not a liquid.
When the generator is at a high load it uses a large amount of propane gas. The propane tank has liquid and gas forms of propane in it. As the propane gas is used the pressure in the tank drop and causes the liquid propane to boil and turn to gas. This actually cools the tank. On cold days a small tank may not be able to absorb enough heat from the air to boil the propane in the tank to create enough gaseous propane for the generator to run properly or it could other components in the propane fuel line to freeze as liquid propane is being converted to gaseous propane. Read Less
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Asked by
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June 16, 2015
Answer: 
Generac's Guardian Series automatic standby generators can run on a fuel source of natural gas or liquid propane.
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June 15, 2015
Answer: 
This unit can run on liquid propane.
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3 answers

how long will it run on 100 gal. of lp gas

This question is from 16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch
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August 18, 2016
LP gas how long run time
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Asked by
Puerto Rico
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September 24, 2016
Answer: 
Mine ran for 30 hours straight during a recent power outage and used 20 cf.
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Asked by
Hauppauge, NY, USA
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August 18, 2016
Answer: 
it will depend on the load. at half load is it 1.99 gal/hour and at full load it is 3.19 gal/hour
A minimum tank size of 250 is recommended. This is so the liquid in the tank can be converted to gas. in cold climates the tank needs to absorb heat from the air to boil the liquid propane to convert it to propane vapor.
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Asked by
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August 18, 2016
Answer: 
While Generac's automatic standby generators can operate continuously for extended periods of time, fuel consumption rates will vary with the amount of load(s) placed on the generator. The unit should also be shut down to provide routine maintenance after every 24 hours of continuous operation. Moreover, please know that these units require a tank no smaller than 250 gallons in size.
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3 answers

What size wire is needed to run this generator for 40 ft away from the box

This question is from 16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch
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November 4, 2015
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Asked by
Northern New York
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November 15, 2015
Answer: 
I took the liberty of scrolling back up to the "Product Overview". To the right of that is a box labeled "Info & Guides". I clicked on the one entitled "Full Product Manual" to look up what the Main Breaker is on the generators output. This would be the breaker mounted behind the door on the right end of the cabinet - as you look at the generator from the front.
Yes, I could have done the math but what I
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I took the liberty of scrolling back up to the "Product Overview". To the right of that is a box labeled "Info & Guides". I clicked on the one entitled "Full Product Manual" to look up what the Main Breaker is on the generators output. This would be the breaker mounted behind the door on the right end of the cabinet - as you look at the generator from the front.
Yes, I could have done the math but what I was looking for was the breaker. The last Generac 16 KW I installed had a 65 Amp breaker on its "output". This breaker protects the wiring that goes from the generator to the transfer switch. The 16 KW I installed had a 6' whip on it that was to be attached to the house AND inside that whip was #6 THHN STRANDED Copper power conductors.
If you ever look, down the side of a wire should be written information about the construction of that wire. The size of the wire, whether it is stranded or solid, copper or aluminum and even what its outer insulation or sheath(s) are built to protect the wire from. If you can't make out what it says, it's repeated over and over its entire length. Just insure that the power is OFF to the wiring you are trying to read.
I matched the wiring provided by the manufacturer. Generac used #6 THHN STRANDED COPPER. (If they would have run #4 THHN StrandedCopper then I would have run the larger wire myself just to avoid warranty issues.) I prefer to run a full sized Neutral so I didn't even try to read what they had - I used a #6 THHN Stranded Copper. I ran a #8 THHN Stranded Copper Ground to comply with Table 250-122 of the National Electric Code. Minimum Size Equipment Grounding Conductors for Equipment.
Forty Feet is not a problem.
There should be 5 to 6 control wires in that whip. They are used in conjunction with the Transfer Switch. They are normally #18 Stranded. Although small in size they carry 240 VAC between N1 & N2 alone. 120 VAC on T1. 12 VDC and the Transfer signal on the remaining control wires. So although small in physical size, they are potentially hazardous. Follow the instructions of your Installation Manual for these particular wires as I have seen both 5 & 6 wires required.
Again, Forty Feet should not be a problem.
I don't have a great demand for #18 THHN Stranded so I do substitute the larger #14 THHN Stranded Copper in its place.
Stay safe by keeping "EVERYTHING" OFF until you have completed your task. Locked out if there's any chance that it may get energized accidentally.
Hope this helps.
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Asked by
Columbia, South Carolina
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November 5, 2015
Answer: 
16 kW is a full-load current of about 65 amps at 240 volts, Coyotetodd, so the wire needs to be sized for that. The National Electric Code says THWN 6 AWG is rated at 65 A, THHN 6 AWG at 70. Home Depot carries THHN.
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Asked by
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November 5, 2015
Answer: 
Unfortunately, we are unable to determine the wire sizes required in your personal configuration; this task would need to be performed by a certified electrician in your local area. If you need help locating a certified party closest to you, please contact us directly at 888-GENERAC (436-3722).
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Customer Reviews

16,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch is rated 4.9 out of 5 by 23.
Rated 5 out of 5 by from PEACE OF MIND!!! A month ago I finally could afford it and bought the 11w unit for my home down her in Puerto Rico. Living here all my life I've experienced many power outages, from hurricanes, tropical storms and lately from simple rain. Been so hot down here life without power, even for just a few hours can be really miserable. Well after some research, my wife and I finally made the decision to buy this product and it was the best decision we ever made. Just two days ago the whole electric grid in the island failed and every last soul here lost power. My unit started immediately and provided power for my house for 30 hours straight without so much as a glitch even at night when I turned on two air condition units for two of my bedrooms. Peace of mind is a beautiful thing.
Date published: 2016-09-25
Rated 5 out of 5 by from works as well as it is designed Installed a 16kw whole house unit a little over a year ago, has worked flawlessly since we installed it.. first time it turned on was approximately 1 week after installation, has not failed to operate flawlessly under any conditions. Highly recommend to neighbors, relatives and anyone that has asked questions about the unit. Keep up the good work and keep on manufacturing a quality product.
Date published: 2016-12-20
Rated 5 out of 5 by from Good investment I have always wanted a standby generator that would power the whole house and run my 3 1/2 ton air condition. I am very pleased with the generac 16 KW. I have not had to use it yet but got it connected to house and did a test run and it ran great only had it 3 weeks.
Date published: 2016-09-28
Rated 5 out of 5 by from Wonderful We got a standby generator this summer of 2016. never had to use it until yesterday. Our neighbors house burnt down, and I was spraying down our house with a hose to keep it form burning too. Having a well we need electricity for water. Our power went out but I never knew it because our generator turned on, just like it was supposed to, I continued to sjparay our house with water, If we did not have this generator our house would have burnt too. Definitely worth money spent on this.
Date published: 2016-11-27
Rated 5 out of 5 by from Selecting a Home Generator Installation (in November 2014) by qualified electrician and plumber was efficient and well thought out. The real test (a 3-hour power outage by local energy company) occurred today -1/18/2015) was successfully passed! We had heat, lights, and water as if nothing had happened. Best decision I made. No regrets. I should have done this years ago! This model automatically tests itself every week (for 5 minutes) and runs quietly. When the real need arises, it promptly detects the interruption of service and starts up. No need to run out in the rain/snow or other storms to fire it up. And it shuts itself down when service is restored. My wife really likes that!
Date published: 2015-01-19
Rated 5 out of 5 by from Great investment providing peace of mind I've been considering an onsite generator for years. Our location has had issues with power outages thru the years and this summer I finally made the commitment , and I'm very pleased that I did. Installer and his crew did a fantastic job on site prep and completion of the setup. Haven't had an outage from local Co-op to use it, but unit provides great satisfaction and comfort just being there.
Date published: 2016-12-16
Rated 5 out of 5 by from you can't beat the product or Home Depot Service have had generac foe years and will not buy any other brand, you can't beat it, and has never let me down, and the service from Home Depot can not be beat either
Date published: 2016-09-27
Rated 5 out of 5 by from Best product Very easy setup. Purchased the Mobile Link smart phone option and is very simple to track generator activity
Date published: 2016-09-29
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