which natural gas generator can I buy online?

Yes. If you want a generator that runs on natural gas, there are two main choices: a permanently installed standby generator or a portable tri-fuel generator.

My top choices

• Generac 10kW Home Standby Generator - $4,076.10 (The Home Depot)

• Generac 14kW Home Standby Generator - $4,319.10 (The Home Depot)

• Westinghouse WGen9500TFc Tri-Fuel - $1,149.00 (The Home Depot)

• Westinghouse WGen14500TFc Tri-Fuel - $2,699.00 (The Home Depot)

• KOHLER RESVL 10kW Standby Generator - $4,398.00 (Lowe's)

• WEN 14,500W Tri-Fuel Generator - $979.99 (Lowe's)

• Best for automatic whole-house backup:

— currently around $4,329 with transfer switch. It uses natural gas or propane and automatically starts during an outage.

• More power:

— around $4,799; a good choice if you want to run central A/C plus major appliances.

• Best portable value:

— about $1,149, with gasoline/propane/natural-gas capability and 9,500 running watts on gasoline.

• High-output portable:

— about $2,699, producing 14,500 running watts on gasoline and also capable of natural gas.

• Premium standby alternative:

— about $4,398, with natural gas/propane and an automatic transfer switch.

What I'd buy

If this is for your house during power outages, I'd lean toward the Generac 10kW or 14kW standby rather than a portable. Current testing and reviews continue to rank Generac, Kohler, and Champion among the leading whole-house standby options.

If you don't want permanent installation and want to spend around $1,000–$1,500, the Westinghouse WGen9500TFc is particularly interesting.

One important point: natural-gas wattage is usually lower than the advertised gasoline/propane wattage, so size the generator based on its NG output, not the headline wattage. For example, Generac's 26kW model is rated at 24kW on natural gas.

If you tell me (1) your budget, (2) whether you want portable or whole-house automatic, and (3) what you want to run—e.g. central A/C, refrigerator, furnace, well pump, etc., I can narrow it down to the best 2–3 models to buy online.

You can buy several top-rated natural gas and multi-fuel (tri-fuel/dual-fuel) generators online depending on whether you are looking for a permanent whole-house standby unit or a versatile portable option.

Popular natural gas generators available for purchase online include:

• Generac Guardian Series Go to product viewer dialog for this item. (e.g., 24kW Standby Generator) : This is the leading whole-house air-cooled standby generator that runs automatically on natural gas or liquid propane. You can purchase it directly online through retailers like the Home Depot Product Page.
• Westinghouse Tri-Fuel Portable Generators Go to product viewer dialog for this item. (e.g., WGen20000TFC) : If you want a heavy-duty portable option that can run on natural gas, gasoline, or propane, Westinghouse offers robust models available online at major hardware and equipment sites such as the Tractor Supply Company Listing.
• Cummins Quiet Connect Series (e.g., RS13A 13kW) : Known for ultra-quiet operation and reliable cold-weather startup, these permanent natural gas home standby units are available online through specialized power equipment distributors like Norwall PowerSystems.

To help narrow down the best option, please let me know:

• Are you looking for a portable generator or a permanent home standby unit?
• Roughly how much wattage do you need to power during an outage?

If you mean a natural gas generator you can buy online for home backup, these are some good options currently available:

Generac 26kW Air-Cooled Auto Start Natural Gas/Propane Whole House Generator + 200A Transfer Switch

$8,059.00

Generac 24kW Air-Cooled Auto Start Natural Gas/Propane Whole House Generator

$6,599.00

Westinghouse WGen10500TFc Tri-Fuel Portable Generator

$1,249.00

KOHLER 26kW Air-Cooled Whole House Generator

$7,949.00

Best choices by use case

1. Whole-house automatic backup (most common choice)

• Generac 22–26 kW standby generators are popular for homes with natural gas service. They automatically start during an outage and can power many or most household loads depending on your electrical setup.
• Typical cost: about $6,000–$8,000+ before installation.

2. Premium whole-house option

• KOHLER natural gas standby models (such as 20 kW–26 kW) are another strong choice, with models designed for automatic home backup.

3. Lower-cost portable option

• A tri-fuel portable generator can run on natural gas, propane, or gasoline. For example, the Westinghouse WGen10500TFc Tri-Fuel Portable Generator provides around 10,500 running watts and is much cheaper than a standby system.
• Portable units require setup, extension cords or a transfer switch, and manual starting (unless equipped otherwise).

What size should you consider?

• 8–12 kW: refrigerator, lights, furnace blower, some essentials
• 14–18 kW: many homes with selected circuits
• 20–26 kW: larger homes or near whole-house coverage
• 28 kW+: large homes with high electrical demand

Before buying, check:

1. Do you have natural gas service at your house (not just propane)?
2. Your electrical service size (100A, 150A, or 200A panel)
3. Whether you want automatic backup or a portable generator
4. Local permit and gas-line requirements (installation is usually not a DIY job)

If you tell me your home size (sq ft), electric panel amps, and whether you want whole-house or just essentials, I can narrow it down to the right kW size.

You can buy several types of natural gas-capable generators online depending on whether you are looking for a permanent home standby generator or a flexible portable/tri-fuel generator.

1. Whole-House Home Standby Generators (Permanent)

These units connect directly to your home's natural gas line and permanent electrical system, turning on automatically when the grid goes down. You can buy them online from major hardware and industrial retailers:

• Generac Guardian Series (e.g., 22kW or 24kW with Transfer Switch): The top-selling brand for automatic home standby power . They run smoothly on natural gas or liquid propane and feature built-in Wi-Fi monitoring. Available to order online via the Home Depot Generac 24kW Generator Page or through industrial suppliers like Global Industrial.
• Briggs & Stratton PowerProtect Series (e.g., 13kW / 11.5kW NG): Known for a smaller, compact footprint that fits tight lot lines while offering heavy-duty motor starting power. Available for purchase online at retailers like Lowe's Briggs & Stratton PowerProtect Generator.

2. Tri-Fuel Portable Generators (Moveable / Versatile)

If you want a portable unit that can run on natural gas right out of the box (along with gasoline and propane), look for "tri-fuel" portable generators. They typically include the natural gas hose kit in the box:

Features an electric start, CO Shield carbon monoxide auto-shutoff, and a dedicated dial to switch safely between gas, propane, and natural gas . Available online at Lowe's Champion Tri-Fuel Generator or the [Home Depot Champion Tri-Fuel Generator Go to product viewer dialog for this item. ](https://www.homedepot.com/b/Outdoors-Outdoor-Power-Equipment-Generators-Portable-Inverter-Generators-Portable-Generators/Natural-Gas/N-5yc1vZbx9nZ1z17kbo).[[1]](https://www.google.com/search?q=product&prds=pvt:hg,productid:6679716234278263963,catalogid:9540705598035528534,gpcid:16388902002753944601,mid:576462570612957410&ibp=oshop)[[2]](https://www.google.com/search?q=product&prds=pvt:hg,productid:15862475520744454496,catalogid:3448546001752211729,gpcid:13945489955268319845,mid:576462737536375854&ibp=oshop)

A higher-capacity, quieter inverter option that handles large appliances and includes a wireless remote key fob. You can find it online via the Home Depot Champion 11000W Tri-Fuel Inverter.

You can also browse a wide variety of options directly on Amazon's Portable Natural Gas Generator Hub.

If you can share how many watts you need (essential appliances vs. whole house) and whether you prefer a portable unit or a permanent standby unit , I can help you narrow down the exact model and installation requirements.

Yes. I found several natural-gas-capable generators currently available online. The right choice depends mainly on whether you want whole-house automatic backup or a portable generator.

My top picks

Westinghouse WGen10500TFc Tri-Fuel Portable Generator

$1,249.00

Generac 28kW Home Standby Generator

$7,999.00

KOHLER 20kW Whole-House Generator

$5,869.97

Briggs & Stratton PowerProtect+ 26kW

$7,195.00

Firman 9,300W Tri-Fuel Portable Generator

$1,099.00

Best value portable: Westinghouse WGen10500TFc — $1,249, currently listed in stock. It runs on gasoline, propane, or natural gas and provides up to 10,500 running watts.

Best whole-house: Generac 28kW — $7,999 at Home Depot. It runs on natural gas or propane and automatically starts during an outage.

Good alternative: KOHLER 20kW — $5,869.97 and listed in stock. KOHLER specifies natural gas or LPG operation and automatic restoration of power.

If you want something around $1,000–$1,500

I'd lean toward a tri-fuel portable rather than a permanent standby system. You get natural gas capability while retaining gasoline/propane as backup.

If you want the generator to power the entire house automatically

I'd look at 14–26 kW standby units from Generac or KOHLER. Generac currently lists natural-gas standby models from 10 kW through 26+ kW, with prices starting around $3,769 for the generator itself.

Important: A permanently installed natural-gas standby generator requires proper gas-line sizing, electrical connection/transfer equipment, clearances, and usually professional installation. Don't connect a portable generator directly to your home's electrical system without an appropriate transfer setup.

If you tell me your budget (e.g. $1,000, $2,000, $5,000+) and whether you want to run the whole house or just essentials, I can narrow this down to the 3 best generators you can buy online right now.

You can buy a wide range of natural gas-capable generators online, split primarily into two categories: Home Standby Generators (permanent, whole-house systems connected directly to your gas line) and Tri-Fuel Portable Generators (mobile units that can run on gasoline, propane, or natural gas).

Top options available for online purchase include:

Home Standby Generators (Whole House)

1. Generac Guardian Series (e.g., 18kW to 26kW models) – Generac is the most popular brand for residential backup power. Their air-cooled units switch to natural gas automatically during an outage and feature Wi-Fi monitoring. You can buy them directly through major online retailers like The Home Depot Whole House & Standby Generators or specialty sites like Electric Generators Direct Natural Gas Standby Generators.
2. Kohler CommandPRO / RCA Series (e.g., 10kW to 20kW+ models) – Renowned for tight voltage regulation and exceptional motor-starting capacity, making them safe for sensitive electronics. Available online via suppliers like Lowe's Home Standby Generators.

Tri-Fuel Portable Generators (Run on Natural Gas)

Westinghouse WGen10500TFc / WGen14500TFc – Highly rated, heavy-duty portable tri-fuel options that include a designated natural gas hookup and clean power output (low total harmonic distortion). Available to order online at The Home Depot Natural Gas Tri-Fuel Generators.

DuroMax XP13000HXT – A powerful portable option offering massive wattage on a tri-fuel framework, letting you feed it directly from a home natural gas quick-disconnect valve.

WEN 14500-Watt Tri-Fuel Generator – A cost-effective, high-output portable choice featuring a carbon monoxide watchdog, available on major home improvement sites.

If you'd like to narrow this down, let me know:

• Are you looking for a permanent standby unit or a portable/tri-fuel generator?
• Approximately how many watts do you need to power?

Yes. If you specifically want natural-gas capability, I'd narrow it to these:

Westinghouse WGen10500TFc Tri-Fuel

$1,249.00

DuroMax XP13000HXT Tri-Fuel

$1,499.00

Westinghouse iGen12000TFc Tri-Fuel Inverter

$1,949.00

Briggs & Stratton PowerProtect 13kW Standby

$5,329.00

Generac 28kW Standby

$7,999.00

My picks

Best value portable: Westinghouse WGen10500TFc — about $1,249, with 10,500 running watts and gasoline/propane/natural-gas capability. This is a strong choice if you want substantial backup power without spending several thousand dollars on a permanent system.

Best portable for a larger home: DuroMax XP13000HXT — about $1,499, with 13,000 peak watts and tri-fuel operation. Good if you want to run multiple large appliances during an outage.

Best quiet/inverter option: Westinghouse iGen12000TFc — about $1,949, with tri-fuel capability and inverter output. It's particularly attractive if you want cleaner power for electronics.

Best automatic whole-house option: Briggs & Stratton PowerProtect 13kW — about $5,329. It's a permanently installed standby generator that runs on natural gas or propane and includes a 200A automatic transfer switch.

Best high-end whole-house: Generac 28kW — about $7,999. It automatically starts during an outage and is designed for whole-home backup.

For most people who already have a natural-gas line and want to keep a refrigerator, lights, HVAC, and other essentials running, I'd start with the Westinghouse WGen10500TFc. If you want the generator to start automatically when the power goes out, I'd move to a standby unit such as the Briggs & Stratton or Generac.

One important point: a portable generator must be operated outdoors well away from the house because of carbon monoxide, and connecting one to household wiring requires the appropriate transfer equipment/electrician.

If you tell me your budget (e.g. under $1,500 / $3,000 / $6,000+) and whether you want to run central AC, I can narrow this to the best 2–3 models you can order online right now.

You can buy natural gas-compatible generators online ranging from portable tri-fuel models to whole-house standby units. Major retailers like The Home Depot, Lowe's, Amazon , and specialized dealer sites allow you to purchase these units directly.

1. Portable Tri-Fuel Generators (Gas, Propane, Natural Gas)

These are mobile units that you can buy and ship directly to your home. They require a proper outdoor natural gas hookup line/kit.

Westinghouse WGen11500TFc — Offers massive peak power (around 1 4,9 9$ to 1,7 1 2$ depending on promotions) with heavy-duty running wattage and remote electric start [1.23]. Available online at The Home Depot and Amazon.

Generac GP Series Tri-Fuel (e.g., Model 8061 12,500/9,500-Watt) — A reliable brand name offering user-friendly electric start and CO-sensor safety monitoring. Available to order on The Home Depot and Amazon.

WEN TF-1450X — A high-wattage, cost-effective tri-fuel choice (around 9 8 0$ to 1,2 0 0$) featuring a wheel kit and digital load tracking. Available via The Home Depot or WEN Products online.

DuroMax XP15000HXT — A heavy-duty tri-fuel portable unit capable of high output for larger home demands. Available online through The Home Depot or direct from DuroMax Power Equipment.

2. Whole-House Standby Generators (Automatic Natural Gas/Liquid Propane)

Permanently installed systems that turn on automatically during an outage. You can purchase these online, though they usually require a certified local electrician/plumber for safe installation and permitting.

• Generac Guardian Series (22kW – 26kW models) — The most popular whole-home standby options on the market, running natively on natural gas. Available for purchase online at The Home Depot and Lowe's.
• Kohler Go to product viewer dialog for this item. (10kW – 20kW RCA/RESV models) — Highly regarded for tight voltage regulation and heavy commercial-grade durability. Available through online generator superstores and select home improvement retailers.

To help narrow down the right choice, tell me:

• Are you looking for a portable unit you can wheel out during emergencies or a permanent whole-home standby unit?
• Approximately how many watts or which major appliances (like central AC) do you need to power?

You can buy a wide range of natural gas-capable generators online, split into two main categories: portable tri-fuel generators (which you can wheel out and connect yourself) and whole-house standby generators (which require freight delivery and professional installation).

Top options available for purchase online from major retailers like The Home Depot and Lowe's include:

Portable Tri-Fuel Generators (Runs on Gasoline, Propane, or Natural Gas)

• Westinghouse WGen11500TFc / WGen9500TFc Go to product viewer dialog for this item.: Highly rated on sites like The Home Depot , these units offer heavy-duty wattage ($1,1 0 0−$1,5 0 0 ) with electric start and heavy surge capacity for appliances.
• Generac 12,500/9,500-Watt Tri-Fuel (Model 80632)Go to product viewer dialog for this item.: A trusted name offering straightforward fuel switching out of the box, widely stocked for direct online delivery.
• DuroMax XP15000HXT Go to product viewer dialog for this item. / XP16000iHT: Massive power output models ($3,5 0 0−$5,2 0 0 ) with digital inverter or high-wattage open-frame designs capable of running heavy residential loads via a manual transfer switch.

Whole-House Standby Generators (Permanently Installed, Natural Gas/Propane)

• Generac Guardian Series (22kW to 26kW models like the 7261 Go to product viewer dialog for this item. or 7328 Go to product viewer dialog for this item. ): The most market-dominant home standby units, often sold online as kits bundled with an automatic transfer switch ($6,5 0 0−$8,0 0 0+).
• Kohler 26RCAL or 20RCA Series: Known for robust engineering and commercial-grade durability, available online through specialty retailers and home improvement platforms.
• Briggs & Stratton PowerProtect+Go to product viewer dialog for this item. (26kW): A competitive whole-house system featuring continuous standby power and integrated remote monitoring.

If you tell me whether you are looking for a portable unit (for flexible, manual backup) or a whole-house standby unit (for automatic, permanent protection), I can help narrow down the ideal wattage size and transfer switch requirements for your home.

If you have natural gas service at your home, the best generator depends on whether you want whole-house automatic backup or a portable unit. Here are good online-buy options:

Generac 24,000 Watt Air-Cooled Whole House Standby Generator

$5,939.10

KOHLER 20,000-Watt Air-Cooled Whole House Generator

$5,699.00

Champion 12.5kW Home Standby Generator

$4,199.00

Briggs & Stratton PowerProtect+ 26,000 Watt Dual Fuel Air-Cooled Whole House Standby Generator

$7,195.00

Best choices by situation

1. Best overall whole-home backup: Generac 22–26 kW

• Good for most larger homes.
• Runs automatically when power fails.
• Can use your existing natural gas line (many models are dual-fuel NG/LP).
• Expect roughly $5,000–$8,000+ for the generator package, plus installation. www.homedepot.com
  Recommended models:

2. Best premium/quiet option: KOHLER 20 kW

• Strong reputation for standby equipment.
• Good choice if noise level and long-term durability matter.
• Example:

3. Best lower-cost standby: Champion 8.5–12.5 kW

• Good if you mainly need essentials:
  • refrigerator
  • lights
  • HVAC (depending on system)
  • internet
• Example:

4. Best portable natural-gas option If you do not want a permanent installation, look at tri-fuel generators (gasoline/propane/natural gas), such as Westinghouse or similar models. They cost less but require manual setup during outages.

My recommendation for a typical home

• Under ~1,500 sq ft: 10–14 kW standby
• 1,500–2,500 sq ft: 14–20 kW standby
• 2,500+ sq ft or central A/C + electric appliances: 22–26 kW standby

Before buying, check:

1. Your home’s natural gas meter capacity (many upgrades are needed for larger generators).
2. Whether you want a whole-house automatic transfer switch.
3. Your HVAC startup load (air conditioners can require a lot of surge power).

If you tell me your home square footage, electric panel size (100A/150A/200A), and whether you want whole-house or just essentials, I can narrow it to the right kW size.