Weber Summit S 670 Reviews: Is It Worth A Second Look in 2024?

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Are you hoping to up your outdoor cooking game with a top-of-the-line gas grill? A unit like the Weber Summit S 670 could be the answer.

This is one of Weber’s premium models, offering a number of tantalizing features that help it stand out from the crowd. The company’s founder, George Stephen, invented the kettle-style grill in 1952. In the intervening years, the business has built up an enviable reputation for quality and dependability.

The Summit S 670 is more than just a grill—it’s a full-service outdoor cooking station. While it’s not the only unit in the Summit series, it’s certainly among the largest. When you’ve finished reading our Weber Summit S 670 reviews, you should be able to tell whether or not this model will suit your needs.


  • Sturdy, efficient design
  • Heats evenly
  • Sear burner delivers excellent grill marks
  • Rotisserie station included
  • Smoker option delivers authentic BBQ flavor


  • High price point
  • Some secondary components (like control knobs) are not as well-made as the main unit
  • Very heavy; can be difficult to maneuver

Things To Consider Before Buying a Gas Grill

charred rotisserie chicken over open flames

When you’re investing in a premium gas grill like the Weber Summit S 670, it’s especially important to choose the right model.

First of all, make sure that you’ll be satisfied with a gas-powered unit. Of all the grill-owning households in the US, over 60 percent have opted for this type of grill. That’s likely because gas grills are so convenient and easy to use.

However, some grilling enthusiasts are partial to the robust smoke flavor that comes from cooking over a charcoal fire. We understand—that’s an important detail for us, too. While the Weber Summit S 670 does have a smoke box and smoker burner, it can’t promise quite the same result. Charcoal aficionados would probably do better to look elsewhere.

Here are a few things to think about before beginning your search for a premium gas grill:

  • Budget: Think about how much you can afford to spend
  • Construction: The grill should be made of durable materials and feature a user-friendly design
  • Size: Large families and people who entertain frequently will need a grill with plenty of cooking space
  • Burner Output: Most gas burners offer BTU outputs in the 9,000-12,000 range
  • Warranty: The company should stand behind their product by offering free replacements for damaged or inferior parts
  • Extras: Look for bonus features such as side tables, tool hooks, built-in bottle openers, or lighted control knobs

Features & Benefits: Weber Summit S 670 Reviews


This is a cabinet-style gas grill with a cookbox made of cast aluminum. The heavy-duty stainless steel lid and shroud help the grill stay hot when the burners are lit. Overall, this is a durably constructed grill that’s equipped to withstand years of frequent use.

The Summit S 670 is available in two finishes: black and stainless steel. Both offer great visual appeal, but the black finish won’t smudge as easily.

The primary cooking surface features six stainless steel burners, complete with Weber’s Flavorizer bar system. These bars protect the burners and create a flavorful vapor when they come into contact with fat or drippings, giving grilled meats an authentic smoky taste.

gas grill flavorizer bars covering the grill burners

The built-in lid thermometer gives you reliable information about the interior temperature of the grill. Because it can be difficult to read from a distance, we would recommend investing in a separate digital thermometer as well.

The grilling grates are composed of 9-millimeter stainless steel rods. These offer superior heat retention and impart impressive-looking grill marks. Because they lack a porcelain coating or any other protective layer, it’s important to clean them thoroughly after each use.

Cooking Surface

The total cooking surface of the Weber Summit S 670 measures 769 square inches. Of that, 624 square inches can be found on the primary grilling area, with an additional 145 available on the optional warming rack.

With a grill this large, you should be able to host large gatherings with ease. The main grilling surface can accommodate about 30 hamburger patties at once, and the warming rack gives you even more room to spread out.

The searing side burner, rotisserie option, and smoker burner make this grill one of the most versatile units on the market. For more information on these features, see Extras, below.

BTU Output

Each of the main burners cranks out 10,000 BTUs apiece, which is well within the accepted range. The sear station and rotisserie burners each have a BTU output of 10,600, while the second side burner offers up 12,000 BTUs per hour. A 6,800-BTU smoker burner rounds out the available options.

In practice, the grill produces an impressive amount of heat without using too much energy. The basic model uses liquid propane as its fuel source, but a natural gas option is available at a slightly higher price. Be aware that this is not a convertible grill—you’ll need to choose between propane or natural gas at the outset.

Ignition System

Weber has equipped the Summit S 670 with a Snap-Jet ignition system for each burner. The burners are controlled by front-mounted knobs and can be used independently of one another.

The Snap-Jet ignition is both dependable and efficient. There’s no need to resort to old-fashioned lighting methods when you’re using this grill.

Grease Management System

Although the Flavorizer bars handle most of the grease drippings, some runoff is inevitable. Fortunately, the Summit S 670 comes with an effective grease management system to help keep the mess to a minimum.

Any juices that aren’t transformed into vapor are caught by an angled grease tray. From there, they’re directed into a catch pan, which sits a good distance away from the burner tubes. This helps to prevent flare-ups, even during long cooking sessions.

The grease tray slides right out of the cabinet for easy cleaning, and the catch pan is disposable. Once it’s full, it can be removed and replaced with an empty one. While this isn’t the most environmentally sound option, it makes cleanup duties much more enjoyable.

Fuel Gauge

This unit comes with an LED fuel gauge, so you can tell how much gas you have left in the tank even when grilling in the dark. Be aware that this option is available only with the LP model and not the natural gas version. 

Ease of Assembly

While the Summit S670 is undoubtedly heavy, it’s fairly easy to assemble. The manual is user-friendly, with detailed pictures and clear instructions.

Given the size of the unit, we would recommend setting aside at least two hours for assembly. It’s also a good idea to enlist one other person to help out, just in case.


Weber offers a 10-year warranty for the Summit S 670. This helps to offset the high price tag, as you can expect to use this grill for many years to come.

Be forewarned, however, that the warranty excludes any damages that are due to normal wear and tear. If the unit is missing a part when it arrives, or if a control knob falls off, then it’s covered by the warranty. On the other hand, if the Flavorizer bars start to deteriorate after a few years, you’ll have to replace them yourself.


As we’ve mentioned, this unit is equipped with a 12-000 BTU side burner, a sear station burner, a smoke box and smoker burner, and a rear-mounted infrared rotisserie option. These are excellent features that increase the grill’s versatility, giving it a definite edge over the competition.

The side burner gives you a place to heat sauces or sides while you grill up the main course. When the meat is fully cooked, the sear station will provide it with a welcome flourish.

The rotisserie system is outfitted with a flip-up motor and separate storage for the spit and fork. Weber has dubbed this the “Tuck-Away” system, and it helps to streamline the grill’s appearance when the rotisserie isn’t in use. Note that this system requires the use of an AC power outlet.

The smoke box can be filled with wood chips to add a burst of flavor to grilled meats and vegetables. This is a perk that’s sure to appeal to charcoal devotees who can’t live without the taste of real wood smoke.

The enclosed cart is large enough to store additional batteries or other supplies, and the side burners make excellent prep tables when they’re not in use. There are also six built-in tool hooks available for tongs or barbecue forks.

Lighted control knobs give you improved visibility for night grilling. As we mentioned, the fuel gauge comes with LED lighting as well, which is another nice touch. There’s even a set of lights built into the grill handle.

The unit sits atop four swivel casters, two of which are equipped with locking mechanisms. In our opinion, these casters are a bit flimsy for a grill this large. However, that’s not a deal breaker, since you probably won’t be moving the grill around much once it’s in place.

Social Proof

We were curious to learn what other users might have to say on the subject of Weber Summit S 670 reviews, so we scoured the internet for answers. Here’s what we were able to find out.

Buyers claimed that the grill was simple to put together, even for those who didn’t consider themselves to be particularly tech-savvy. Others praised the durable construction and superb performance, citing the rotisserie burner as an exceptional feature. Most of them were convinced that the grill was worth the extra cost.

Possible Alternatives

If these Weber Summit S670 reviews haven’t done their part to convince you, fear not. You still have other options. Take a look at these three major competitors to find out if they’re more to your liking.

#1 Monument Grills 6-Burner Gas Grill with Side Burner and Rotisserie Kit

While this grill isn’t as sturdily built as the Weber, it offers many of the same options. “Flame Tamers” help keep flare-ups to a minimum, and the rotisserie kit is great for grill-roasting whole chickens. It’s also set at a lower price point.

How They Compare

  • Affordability—Monument Grills
  • Construction—Weber
  • Size—Monument Grills
  • BTU Output—Monument Grills
  • Warranty—Weber
  • Extras—Weber

Take a look at this offering from Monument Grills if you want a large gas grill at an affordable price.

#2 Char-Broil Performance 550 5-Burner Gas Grill

Though it’s equipped with only 5 burners, this unit offers 550 square inches of primary cooking space, with an additional 205 available on the warming rack. There’s also a 10,000-BTU side burner, plus a shelf for prep or storage.

How They Compare

  • Affordability—Char-Broil
  • Construction—Weber
  • Size—Weber
  • BTU Output—Weber
  • Warranty—Weber
  • Extras—Weber

Consider the Char-Broil Performance 550 if you don’t need all the grilling space that the Summit S 670 offers.

#3 Royal Gourmet 6-Burner Gas Grill

This is a modestly priced and attractive unit, offering a grand total of 797 square inches of cooking space. It weighs in at just under 115 pounds, making it more maneuverable than most comparably sized grills.

How They Compare

  • Affordability—Royal Gourmet
  • Construction—Weber
  • Size—Royal Gourmet
  • BTU Output—Royal Gourmet
  • Warranty—Weber
  • Extras—Weber

For a lightweight unit with plenty of cooking space, check out the Royal Gourmet 6-Burner Gas Grill.

The Bottom Line

If you can afford it, we highly recommend the Weber Summit S 670.

This is a well-designed and sturdy gas grill, geared toward serious outdoor chefs who want to turn their hobby into a lifestyle. The rotisserie and smoker burners alone would warrant a second look, but it has plenty of other features that make it a worthwhile investment.

For an in-depth look at the Weber Summit S 670, click here.

Darren Wayland Avatar


1 thought on “Weber Summit S 670 Reviews: Is It Worth A Second Look in 2024?”

  1. This grill hasn’t been updated for 10 years. It’s considered to be outdated compared to the Genesis II. With time, the reviews say that rust is an issue inside the cabinets. Only compatible with iGrill 2 and not 3.


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