Ninja

Ninja™ FlexFlame™ 5-in-1 Propane Gas Outdoor Cooking System

|42 ratings
Item # 990523791
Current price is $1,249.00
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Highlights

  • 5-in-1 functionality: grill, smoke, roast, griddle, and make pizzas
  • Dial in and maintain exact temperatures from 200°F to 600°F
  • 424 square inches of main cooking space
  • Requires a 3-prong outdoor extension cord and 20-lb propane tank (not included)
  • Assembly required
ninja™ flexflame™ 5-in-1 propane gas outdoor cooking system propane-powered dark green grill, 3/4 front view with closed double-walled lid, digital control knob and display, stainless side shelves, lower cabinet on casters and accessory group shown separately (cover, grates, drip tray, pellet box); grills, smokes, roasts, griddles and makes pizzas, 424 sq. in. main cooking area, 200°F–600°F range, requires 20-lb propane tank and 3-prong outdoor extension cord; often used for outdoor catering prep or batch meal cooking.
Ninja™ FlexFlame™ 5-in-1 Propane Gas Outdoor Cooking System
Hero image 0 of Ninja™ FlexFlame™ 5-in-1 Propane Gas Outdoor Cooking System, 0 of 10

About this item

Product details

Revolutionize Outdoor Cooking with the Ninja™ FlexFlame™

Transform your outdoor culinary experience with the Ninja™ FlexFlame™ Outdoor Cooking System. This versatile 5-in-1 system lets you grill, smoke, roast, griddle, and even make perfect pizzas (accessories sold separately). With precision propane flames and super-heated continuous airflow, you can achieve fast, crispy, and juicy results every time. Add bold, smoky flavors effortlessly with Ninja WoodFire® Technology for a truly unique cooking experience.

Advanced Features for Perfect Results

Enjoy precision cooking with the digital control panel, allowing you to set and maintain temperatures from 200°F to 600°F. The high-velocity convection fan ensures even heat and smoke distribution, delivering surround searing, crisping, and browning. Preheat up to 600°F in just 7 minutes and master the art of grilling with ease. Whether you're smoking low-and-slow or grilling at high heat, this system has you covered.

Generous Cooking Space and Durable Design

With 424 sq. in. of main cooking space, the Ninja™ FlexFlame™ accommodates up to 3 7-lb chickens, 4 racks of ribs, 18 4-oz burgers, or 14 10-oz steaks. Built to last, it features porcelain-enameled cast-iron grill grates, a double-walled heavy-duty lid, and durable side tables. The included 10-year limited warranty ensures peace of mind for years to come.

Exclusive Sam’s Club Bundle

Unlock more with this exclusive bundle, which includes stainless steel grill grates, a porcelain-enamel-coated steel indirect roast & smoke rack, grease tray, 6 side hooks, a removable pellet box, and a premium grill cover. Expand your cooking system with additional accessories like a storage caddy, grease tray liners, and more for added convenience.

Easy Assembly and Power Requirements

Assembly is a breeze with the BILT app's 3D interactive instructions. The system requires a 3-prong outdoor extension cord and a 20-lb propane tank (not included) to power its innovative technology and heat. Elevate your outdoor cooking game with the Ninja™ FlexFlame™ Outdoor Cooking System today!

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Specifications

Size: 25.07" L x 59.57" W x 48.31" H

Weight: 144.62 lbs

Fuel Type: Propane

Main Cooking Space: 424 sq. in.

Functionality: 5-in-1 (grill, smoke, roast, griddle, and make perfect pizzas)

Warranty: 10-year limited warranty

Warnings and disclaimers

Indoor Use Warning for Gas-Fueled Appliances

UNDERSTAND THE AIR QUALITY IMPLICATIONS OF HAVING AN INDOOR GAS STOVE. CONOZCA LAS IMPLICACIONES EN LA CALIDAD DEL AIRE QUE GENERA UNA ESTUFA DE GAS EN INTERIORES. - https://cdphe.colorado.gov/health-impacts-of-gas-fueled-stoves

Member ratings & reviews

4.6 out of 5 stars
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42 ratings42 reviews
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  1. 5 stars79% (33)
  2. 4 stars12% (5)
  3. 3 stars5% (2)
  4. 2 stars2% (1)
  5. 1 star2% (1)
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Showing 1-3 of 42 reviews

Mar 3, 2026
Reviewer name: CheriC
5 out of 5 stars
5 out of 5 stars review

Heavy duty, you can grill, roast, smoke, griddle a

[This review was collected as part of a promotion.] This is a heavy duty unit that does so much, its amazing! You can grill, roast, and has a spot for pellets that feed into it so its a smoker. You can use as a griddle or even a pizza oven however the griddle and pizza stone are sold separately but still how awesome is that. It will offer information on the screen that is very helpful such as close the lid when it time to heat up the inside, it shows the temperature as its heating and flashs what your temp you set it for. All options are clearly marked on the cooking unit so it easy to use. The instructions to put it together are very good, it also provides a link to a 3-D video which helped a lot. All the parts are lettered and they even include the tools needed. It will take two people to lift it up onto the frame other than that part it took about an hour all together to get it up and running. We are over the top happy with this and can't wait for spring and summer we will use to cook everything. I highly recommend this Ninga Flexflame outdoor cooking system.

Review from sharkninja.com
Helpful?5GNNLXGWFZTD19981122754
May 31, 2026
Reviewer name: MaryPat
5 out of 5 stars
5 out of 5 stars review

I absolutely love this product. I was able to use it at a friend's house and tried to steal it! LOL! truthfully, I would never do that to her but I was very jealous and has been trying to get one of my very own so now that Sam's Club has them I believe this will be my next big purchase. might have just about everything ninja has put out and when the food came out I'm on my fifth one because I used them so much that I blew up the first two. I've never been disappointed by any ninja product and if you're interested in a grill then I suspect this is the place you want to be! it also comes with two griddle inserts which makes life even better. please do your research because I did mine and I decided that this is definitely my next purchase. until then I'm always over at my girlfriend's house bugging her to death and using hers. I hope this helps you make the correct decision for you.

Helpful?5GNNLXGWFZTD19981122754
May 4, 2026
Reviewer name: PriscillaB
5 out of 5 stars
5 out of 5 stars review

Conventional

I never received through influenster but I was really good at convincing my family that we needed to get one. It was a fairly easy process to assemble so don’t be intimidated. One of the features I love is the temperature control you get the benefit of cooking like you would if it wan an oven BUT it’s grilled. Yes read that again!! This was pure genius.

Review from influenster.com
Helpful?5GNNLXGWFZTD19981122754

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