Generac GP18000EFI 18000W/22500W Low THD Gas Generator Electric Start New

Name: Generac GP18000EFI 18000W/22500W Low THD Gas Generator Electric Start New
Brand: Generam
SKU: GP18000EFI
Price: 4249.0 USD
Availability: OutOfStock

$4,249.00

$4,249.00 ~~$4,399.00~~

SAVE 3% Sold out

Out of stock

Product variants

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Generac GP18000EFI 18000W/22500W Low THD Gas Generator Electric Start New

$4,249.00

$4,249.00 ~~$4,399.00~~

SAVE 3% Sold out

How many watts do I need for the generator to power my whole house during an outage?

It depends on your appliances (fridge, AC, lighting, etc.). Generally, a model between 10,000–13,000 watts covers most of an average home's essential needs. We can help you calculate exactly how much you need based on your specific appliances.

Does it only run on gasoline, or are there other options (like propane)?

We have Dual Fuel models that run on both gasoline and propane, so you can choose whichever fuel is available. We also offer Tri-Fuel models that add natural gas — great flexibility, especially if gasoline runs out when you need it most.

What's the warranty, and how much maintenance does it need?

Warranty typically ranges from 1 to 3 years depending on the model, covering the engine and core components. Maintenance is simple: regular oil changes, filter cleaning, and spark plug checks every few months.

Since I installed it, we haven't lost power once during storms. It fit perfectly with our home setup and it's incredibly easy to start and maintain. I recommend it completely. It's a really practical investment for anyone who wants peace of mind when the power goes out.

Andrés

★★★★★

What I loved most was the design. It looks modern and sleek, and it blends in perfectly with the setup at home. It doesn't feel like a cheap, bulky unit — it's compact and fits right into the space. On top of being practical, it really improves the overall look of the backup power setup. Very satisfied with this purchase.

Lucía

★★★★★

It fit perfectly with our home power setup. Great quality, plenty of capacity for everything we needed, and it kept everything running smoothly. I recommend it.

María López

★★★★★

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From emergency home backup to DIY projects to the jobsite, the Generac GP18000EFI portable generator provides high wattage, dependable portable power. Equipped with an 816cc engine with Electronic Fuel Injection, the GP18000EFI delivers power efficiently, providing up to 9 hours of runtime at 50% load. TruePower™ Technology safely powers sensitive electronics, appliances and tools while onboard COsense® Technology provides powerful protection against hazardous carbon monoxide.

The GP18000EFI also features electric start (battery included), low-oil shutdown protection, circuit breaker protected outlets and an hour meter with maintenance resets. The included never-flat wheel kit and available lifting eye accessory make transportation easy around the home or jobsite.

Limited Time Offer

This is a Limited Time Offer, valid until July 30th or while stock lasts. Once this batch is sold out, it may take time before we restock — so don’t wait too long!

Shipping information

All orders are processed within 1 business day and typically arrive within 7–14 business days depending on your location. We also offer Free Shipping across the United States.