See how your average inverter or gas generator stacks up
  • Finally, there’s no need for a big, smelly gas generator you need to maintain.
  • CarGenerator is sleek and light, 11 pounds, and requires no extra maintenance.
  • CarGenerator easily powers your gas or oil furnace/boiler, or fridge, for 50-70 hours.

Next time your home power goes out, these are the traditional ways to get backup power


Pros: instant switchover within seconds, all lights appliances etc run, unlimited runtime if connected to your gas line supply.

Cons: Yearly maint fee between $300 $400, high cost of initial install $10k plus permitting, construction running gas lines etc


Pros: Silent, no fumes, easy storage, eco friendly.

Cons: limited capacity. Whether it’s a battery jumper pack or a Tesla Powerwall, once you start using power, watch your battery meter constantly drop and eventually you run out of power.


Pros: quick and easy to buy from any local hardware store home depot, can power many items in your house

Cons: reliability is a major issue. Unless you maintain these perfectly and test and use them regularly, they may not start when you most need. Also storing large cans of gas in your garage or garden shed is a fire and explosion hazard, and they need to be stabilized for long term storage and kept fresh. Noisy and Smelly also...


Harnessed Jimmy

You can keep your whole house warm for 50-70 hours powering your gas furnace, oil boiler, or run your fridge and internet or TV – using the car right there in your driveway. Safely and easily, without the hassles of maintaining a gas generator and hoping it will start when you need it most, and storing dangerous gas cans etc. WHATS THE UPSIDE? ultralight 11 pounds, very reliable if your vehicle starts you have power, quiet, clean, eco friendly less emissions than portable gas generators, works with gas/diesel/pure electric and hybrids. Powers home essentials only like furnace, fridge, freezer. Runtime 50-70 hours on a typical vehicle gas tank.  WHATS THE DOWNSIDE? cannot power everything in your house all at once, and cannot power large loads like Air Conditioning, electric furnace, stove, hot tub, etc. If your power goes out several times per month or you need to power large items in your house like hot tubs, washer/dryer, etc then CarGenerator is not for you, your only option is a regular traditional gas generator.

Why Your Vehicle Is Better For Backup Power, Instead Of A Traditional Gas Generator?

Lightweight and Convenient

Starting at just 9 pounds, this tiny device hooks up in a minute, and powers your home for days.

Longer Runtime

You get 50-70 hours of runtime from your car gas tank, versus refilling a small gas generator tank every 4-6 hours.

Environmentally Superior

Gas generators are known to be loud and smelly for a reason, they have almost no emissions control or filters.

Electric / Hybrid cars

Electric / Hybrid cars work great with CarGenerator, and in the case of a pure electric vehicle you use no gasoline at all.

Less Gas

Surprise! Running a compact sedan at idle uses less gasoline than running a generator. Honda 1000watt generator .19 gal/hr, compact sedan 2 litre engine .16 gal/hr Source:

Ultra-Reliable & Hassle Free

Ready when you need it. If your car starts you have power. Hassle Free no maintenance or oil changes, ever.

Thanks for visiting CarGenerator, this is me, Jonathan Schloo.

Watch CarGenerator customers Barb and Bruce run their house furnace easily from their family mini van.

Harnessed Jimmy


Some vehicles already have an inverter built in that you can plug your laptop into, but its only 100 watts, not enough to power things like your home gas furnace. Some new vehicles have larger inverters built in like Ford F150 ProPower 2000watt which idles the engine 85 hours on a tank, or the 2021 Toyota Highlander Hybrid and also the Sienna minivan has a 1500 watt inverter built in. FORD wants you to buy a new $80,000 truck with a built in 2000 watt inverter generator. CarGenerator lets you use the vehicle you already own, and create a good power solution for 1% of that cost, starting at just $795.


Today I’m going to share a secret with you about how you can get backup power for your house to keep your family safe and warm for days, during your next blackout. Up till now this knowledge has been the exclusive secret domain of “techies” and car mechanic Youtube DIY types. What’s the secret you ask? An Inverter. This device converts the 12volt power from your vehicle, into 110/120 volt standard household AC power. You can use this to run your home gas furnace, fridge, sump pump, lights, computers and internet or TV.


You can buy our DIY smart inverter only for $295

Our DRY USE ONLY CarGenerator model is $460 this is great for a sunny day or good weather situations.

Our flagship ALLWEATHER MODEL is $795. This is a turn-key solution, fully weatherproof, you can use in any kind of storm, rain, snow, ice, with custom heatproof integrated cables. It actually costs even less if you think about it, $615 plus $180 of bonus accessories = $795. This includes our $180 bonus package of furnace plug kit, AC power watt meter, 3 year extended warranty, and free shipping.


IDLING CARS AND OLD WIVES TALES One of the most common objections, is it bad to idle your vehicle for an extended time? Sorry nope, that’s an old wives’ tale... in fact millions of vehicles idle every day, not only police cars, taxis, etc but also regular ordinary folks waiting to pickup the kids from soccer, waiting at the airport, stuck in traffic and more. For the 10-20 hours per year you might need to use your vehicle as a generator, is not even a drop in the bucket to the hundreds of hours you already idle every year. Prove it to yourself... get a vehicle scanner and run it on your own personal vehicle, and see how many "idle hours" are already on the engine clock. Even sitting at a stop light you will notice your idle hours are ticking up.


Do I need to leave my car engine running?

Unless you own a wind farm or a giant solar array, when the power goes out, there are only two ways of generating backup power; 1) Producing power from backup batteries, which will only last a few hours at best, or 2) producing power from an internal combustion engine. Like a traditional gas generator, with CarGenerator, a gas motor provides the power, turning fuel into electricity. Where CarGenerator is different is that it has a much larger gas tank, so 50-70 hours of runtime is possible instead of 5-8, and it’s only 16 pounds, because you are using your car’s engine instead of one that’s permanently coupled to a generator. Thanks to the superior emissions control systems of modern vehicle, CarGenerator is actually more environmentally-friendly as well.

Will I run out of gas?

A typical vehicle can provide power for 50+ hours up to 80+ hours on a tank. Compare this to a typical portable gas generator that needs attention every 4-5 hours because of its tiny little gas tank.

Will it drain my battery?

Nope. Not even one tiny bit… Once your motor is running, your battery isn’t even necessary in the equation (true fact, ask your mechanic). Power for the car’s electrical system (or your house or RV) actually comes from the alternator. Batteries are there just to start the car and get the motor running, so your battery won’t even notice CarGenerator being attached.


Nope, not unless you were planning on hooking up CarGenerator to a ’59 Studebaker. Modern cars are designed to handle all kinds of operating conditions, and at idle, the car’s computer makes sure its engine is adequately cooled and lubricated. Police vehicles and ambulances are typically idled all the time, and usually enter their second service lives at 100,000+ miles. If you need CarGenerator more than a handful of times per year, you’d likely be better off with a natural-gas-powered, hard-wired permanent generator at a cost of $5,000+ dollars. For everyone else, rest assured that your car is operating well within its design limits.


Nope. Not a chance…. Once you start your engine, just lock your doors with a spare key (see our instruction manual), and depending on your location you can put a steering wheel lock on for additional protection (about $12 at Wal-Mart) which makes it almost impossible to steal the vehicle. If you’re still worried, or you live in a neighborhood with a lot of chalk outlines on the sidewalk, CarGenerator can supply you with a wheel boot, to make theft impossible without a trailer or an angle grinder. If a thief brings a trailer to steal your car, it won’t matter if the key is in it or not. If they bring an angle grinder, you will definitely hear them, and should probably call the police. In any event you would know immediately because your power would go out!

Why not just buy a regular gas generator?

Three words: Reliable. Ultralight. Run-time.

RELIABLE – the #1 problem with traditional generators? F.T.S. – fail to start. When you need it most they don’t start up because of old gas or no maintenance. If your car starts, you have power.

ULTRALIGHT – CarGenerator is just 16 pounds, versus typical generators that are 60 – 160 pound beasts.

RUN-TIME – CarGenerator has a run-time of 50-80+ hours, where typical generators need to be refilled every 4-5 hours.

What about the environment?

Its actually more environmentally friendly because typical vehicles already have thousands of dollars worth of emissions controls systems in place; computers, oxygen sensors, and catalytic converters. In some cities, a ULEV (like a Toyota Prius) actually puts out less pollution than there is in the ambient air! Gross, right? A standard generator is basically a glorified lawn mower, with no emissions equipment at all!

Why not just get a cheap inverter then?

Totally an option. If you want to jerry-rig an inverter in a waterproof container, you certainly could, but if you want to plug in any sensitive electronics (like your furnace, laptop, or medical device) you’ll need pure-sine wave power to avoid damage and ensure good performance. A 1000 watt, pure sine wave inverter can be purchased from Walmart for about $400. Then you need a set of heat-proof booster cables for prolonged use under the hood (about $100), and finally, you need a weather-proof housing that also allows for ventilation. If you’re an industrious, DIY-er who loves saving money above all else, you could definitely build your own CarGenerator; you’ll save about $150, providing your time isn’t worth anything. For the rest of us, who value our time and want an easy, proven solution, CarGenerator is simply the best possible option for worry-free, temporary power.

Is up to 1000 watts enough?

1000 watts is not a lot, however consider the following:

- To run your gas or oil furnace and heat your entire house, only requires between 200-300 watts on average.

- To run a fridge only requires 200-300 watts typically

- The number one identified problem with gas generator is….? F.T.S. = Fail to start. CarGenerator is always ready.

- Keeping a good supply of gas cans stored, and keeping them all fresh every few months, is a nuisance and a fire safety hazard.

- If you need lots of backup power for all your house appliances and big draw items like a hot tub, wine cellar, Air Conditioning, or if you often need backup power, then you’re better off with a traditional gas generator.

- If your need for backup power is occasional and modest, then a CarGenerator is a better choice.