Zoom on the Generac XT8500EFI
In summary, the Generac XT8500EFI is a powerful portable generator especially useful for professionals who want to be able to deliver results, even during a power failure.
Power & Run Time
The Generac XT8500EFI's design includes a gasoline-fueled 459 cc Generac OHV 4-stroke engine. With a 120/240V output, it gives a running wattage of 8500W and also a peak wattage of 10000W.
This generator features a conventional pull-start mechanism, but also a convenient and easy-to-use electric starter (battery included).
The Electronic Fuel Injection (EFI) system enhances the engine's reliability, lowers fuel consumption, improves startup, reduces servicing, boosts stale fuel resistance, and offers better altitude adaptability.
With a full tank, the XT8500EFI can operate for around 9 hours at 50% load (fuel consumption around 0.89 GPH), thanks to its fuel capacity of 8 gallons.
As the XT8500EFI produces a clean sine wave, with a <5% Total Harmonic Disruption (THD), sensitive electronics may be plugged in the AC outlets safely.
The control panel features the upcoming 5 AC outlets:
As it features a twist-lock L14-30R receptacle, the XT8500EFI is transfer switch ready: in case of a power outage, you will be easily able to connect it to a breaker box and power your household.
The Generac XT8500EFI has a conventional, open frame design, of the following dimensions: L31.4 x W20.5 x H26.5 in, which offers support and allows it to be raised above ground level. The generator is designed for ideal use outdoors and in rough environments.
Even though this device may be technically portable (as in movable), manipulation and transportation without special equipment can be a challenge, as it weighs 214 pounds. However, this lack of maneuverability is compensated by its wheel kit (⌀9.5") and its folding handle, with which you can conveniently shift it, once it's on the ground.
One of the many XT8500EFI's features is the data center, included in its control panel, which conveniently provides information on the lifetime run hours and thus, helps you monitor its activity and status.
The generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.
From a security point of view, the generator is equipped with an overload protection (circuit breaker) and an automatic low oil shut-off, giving you a peace of mind during use.
The XT8500EFI also benefits from Generac’s COsense® carbon monoxide monitoring. This technology senses and manages CO output and shuts down the unit when necessary, to minitgate CO poisoning. It’s a welcomed additional security feature, but don’t forget to always take your generator outside (opens in a new tab).
Along the basic documentation and an owner's manual (opens in a new tab), useful for starting the generator right away, the Generac XT8500EFI's package also includes these accessories: funnel, oil and battery charger.
The Generac XT8500EFI is EPA-approved and CARB-compliant. Thus, selling and purchasing this generator is allowed in each of the 50 states, including California.
Moreover, it features a spark arrestor, which makes it suitable for use in forested areas.
The Generac XT8500EFI versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Generac XT8500EFI compare to generators of similar power (between 8000 and 9000 W).
- As its weight is 214 pounds, the Generac XT8500EFI falls in the expected weight range of the devices in the 8000-9000 rated wattage category. Regarding dry weight, one of the champions in the same power range is the Lifan LF8750iEPL, with a dry weight of only 185 lbs.
- As far as autonomy is concerned, providing around 9 hours of runtime with a full tank at a 50% load, the XT8500EFI falls into the low end in comparison with other devices of a comparable power output. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Firman H08053, reaching around 12 hours.
- The run time is important, but also hugely depends on the capacity of the fuel tank and doesn't mean much if we don't talk about fuel consumption as well. This generator is not fuel efficient compared to devices of similar output: its estimated fuel consumption stands at 0.89 GPH at a 50% load. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.55 GPH, the Pulsar PG10000B16 is a device you should look out for.
As you can see from this interactive chart, when compared to other 8000-9000W generators, the Generac XT8500EFI is on the average side of the price range.
Therefore, this generator nicely fits in the expected budget for this kind of product.
The bottom line
- In the expected price range
- COsense® technology
- Several accessories included
- GFCI Outlets
- Electric start
- Clean sine wave
- Electronic Fuel Injection
- Decent weight (214 lbs)
- No remote start
- Relatively low run time
- Low fuel efficiency
Features and Specifications
|Engine||459 cc Generac OHV 4-stroke|
|Starting system||Recoil, Electric|
|Voltage||AC: 120/240V 60 Hz|
|Running watts||8500 W|
|Starting watts||10000 W|
|Running amps (@120/240V)||70.8/35.4 amps|
|Peaks amps (@120/240V)||83.3/41.7 amps|
|Run time @50% load||9 h|
|Run time @25% load||N/A|
|Automatic Voltage Regulation||Yes|
|AC outlets|| |
|Data center||Lifetime run hours|
|Fuel tank||Steel, 8 gal|
|Approx. dimensions (L x W x H)||31.4 x 20.5 x 26.5 in|
|Noise (lower limit)||Unknown|
|Security||Low oil and overload protection|
|Neutral||Bonded to frame|
|Accessories included||Oil, funnel, battery charger and battery|
Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.
Generac Power Systems is an American based generator and power equipment manufacturer, founded in 1959. As its name suggests, the main focus of Generac are power generators, and other related electric equipment, such as switches, paralleling systems and small engines. The company has several manufacturing facilities based in the US, thus, their products are made in the USA. However, the company provides no information about the origin of their components.
The Generac XT8500EFI is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Generac generators, please consult Generac's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-888-GENERAC (888-436-3722).
Questions & Answers
What can it power?
|Item||Running Watts||Starting Watts|
|At home||Microwave (1000 watts)||1500||1500|
|AC (10,000 BTU)||1500||2200|
|Electric fry pan||1500||1500|
|Refrigerator (energy star)||192||1192|
|Total||6792 W||8292 W|
|For camping||RV AC (11,000 BTU)||1010||1600|
|Microwave (1000 watts)||1500||1500|
|Total||6790 W||7380 W|
|For work||Table saw||1800||4500|
|Air compressor (1 hp)||1600||6100|
|Total||5480 W||9980 W|
Hi. Does the battery need a charge in order to run the fuel injection system? Will it run without the battery??? (Asked July 15, 2020)
The battery does need a charge for the fuel pump and electronics to run. If the charge is not sufficient, the EFI fault indicator light will flash and the generator will not start.
Can the xt8500efi be connected to a transfer box to power a gas home furnace/AC? (Asked August 05, 2020)
It absolutely can. Best way would be through Generac's HomeLink transfer switch (opens in a new tab), but a licensed electrician should be able to do the connection to your existing transfer box.
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