Our readers keep the lights on and my morning glass full of iced black tea. As an Amazon Associate, I earn from qualifying purchases.
Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
You want a 4-burner gas grill with a side burner that sears steaks like a steakhouse, not just a shiny box. This guide translates specs into real cookout performance, helping you pick a model that earns its spot on your patio.
I’m Min — the founder and writer behind Gadgets Feed. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Whether you’re upgrading from a compact unit or outfitting a new deck, the right 4-burner gas grill with side burner balances BTU output, cooking area, and durable materials for years of reliable backyard meals.
Our Picks at a Glance
How To Choose The Best 4-Burner Gas Grill With Side Burner
Before you click buy, understand what drives the daily experience. Understanding specs like cooking area and heat-up time prevents overpaying for numbers that don’t improve your food.
BTUs and Heat Output
BTUs (British Thermal Units) measure how much heat the burners can produce. Higher doesn’t always mean better; it’s the even distribution of that heat across the cooking surface that gives you reliable searing and cooking. A grill that hits 650-700°F in under 10 minutes is what you want for perfect grill marks, not just a high number on the box.
Cooking Surface Area
The total square inches of cooking space is a headline spec, but you should drill into the primary cooking area versus the warming rack. The primary area is where the real grilling happens, so compare that number across models. Warming racks are useful for keeping food hot and toasting buns, but they don’t replace the main grate space you need for burgers and steaks.
Materials: Stainless Steel vs. Painted Steel
Your grill lives outside, so materials are the biggest factor in how long it lasts. Look for stainless steel burners and key components, as they resist corrosion better than painted steel. Porcelain-enameled cast iron grates hold heat and provide good sear marks, and they are typically easier to keep clean than bare cast iron.
Quick Comparison
| Model | Best For | Total Cooking Area | BTU Output | Frame Material | Amazon |
|---|---|---|---|---|---|
| Monument Grills 4+2★ Best Overall | High-heat searing & features | 723 sq in | 72,000 BTU | Cast Iron | Amazon |
| MASTER COOK 4+1Budget Champion | Budget-friendly family grilling | 518 sq in | 40,000 BTU | Stainless Steel | Amazon |
| Captiva Designs 4Top Performer | Even heat & easy cleanup | 545 sq in | 42,000 BTU | Stainless Steel | Amazon |
| Sophia & William 4 | Value & quick assembly | 545 sq in | — | Stainless Steel | Amazon |
| Electactic 4 | Rust-proof construction | 383 sq in | 42,000 BTU | Stainless Steel | Amazon |
| Monument Grills 4+1 NG | Natural gas convenience | 630 sq in | 50,000 BTU | Stainless Steel | Amazon |
| Charbroil Pro Series | 3-in-1 grill, griddle, charcoal | 802.9 sq in | — | Alloy Steel | Amazon |
| Napoleon Freestyle 425 | Fast, even cooking | 571 sq in | — | Stainless Steel | Amazon |
| Weber Genesis E-415 | Premium reliability & searing | 820 sq in | — | Metal | Amazon |
| Weber Genesis S-435 | Versatile cooking & side burner | — | — | Stainless Steel | Amazon |
| Napoleon Prestige 500 | Rotisserie & infrared searing | 500 sq in | 48,000 BTU | Stainless Steel | Amazon |
In‑Depth Reviews
1. Monument Grills Larger 4+2 Burner Propane Gas Grill
Our pick — 4.5★ from 600+ verified ratings; the strongest balance of quality and price.
A backyard workhorse that brings steakhouse-level searing home with a window to watch it happen.
It delivers 72,000 BTU across four 304 stainless steel main burners, plus a dedicated side burner and a high-heat infrared sear burner. You get a massive 723 sq in of total cooking surface — 510 sq in of primary space plus a 190 sq in warming rack — so there’s plenty of room for a big gathering.
Porcelain-coated cast iron grates retain heat evenly, while stainless steel flame tamers distribute that heat consistently. It also has built-in knob lights for grilling after dark, and the ClearView lid window lets you check on your food without lifting the lid and losing heat.
Assembly is a mixed experience in owner feedback, with some finding it straightforward and others wrestling with less-than-clear instructions and sharp edges. But what wins people over is the quality and the cooking performance — the sear station is praised as the standout feature for steaks, capable of reaching 700-900°F for perfect reverse-sear results.
What Owners Rave About
- Searing burner delivers restaurant-quality crust on steaks
- Heats up quickly and distributes heat evenly across the grate
- ClearView window makes monitoring food easy without losing heat
Where It Gets Tricky
- Assembly instructions can be vague and parts have sharp edges
- Low setting can overheat with the lid closed
- The glass window needs frequent cleaning
the balance: This grill gives home cooks searing power and versatility without the premium price, making it ideal for those who want high heat and multiple cooking options.
Reach for it if: You prioritize steak searing and like monitoring your food through the lid window.
2. MASTER COOK 4 Burner Gas Grill with Side Burner
A right-sized, entry-level option that feeds the family without feeding your budget anxiety.
This MASTER COOK sears and simmers with 40,000 BTU from its four main burners plus a 12,000 BTU lidded side burner, and it starts quickly with a piezo ignition system (a push-button spark that lights the gas without matches). You get 518 sq in of total cooking space — a 400 sq in primary area and a 118 sq in porcelain-coated swing-away warming rack — enough for up to 25 burgers, so it covers most family meals and small gatherings.
The stainless steel lid and control panel give it a sleek look, and the lid-mounted temperature gauge helps you keep an eye on the heat. Four casters make it easy to move around the patio or tuck away when not in use.
It’s important to be honest about the trade-offs here. Owner feedback points to flimsy build quality in places, with poorly welded and finished parts noted. Assembly is quick for some, but the written instructions are often cited as confusing. And while the grill cooks perfectly once set up, an occasional unit arrives with shipping damage that requires a hand truck to move.
Real talk: This is a budget-friendly grill that handles the basics well — even heating and easy startup — but its longevity will depend on how gently you treat it. It’s a solid starting point for a first-time propane grill owner, not a forever grill.
Who it suits: Buyers who want a functional 4-burner setup at an entry-level price and are willing to forgive some assembly frustration.
3. Captiva Designs Propane Gas BBQ Grill with Side Burner
The even-heating entertainer with a pull-out grease tray that makes post-BBQ cleanup a breeze.
At 42,000 BTU from four stainless steel burners, the Captiva Designs delivers plenty of heat, but the real story is how evenly it cooks. The porcelain-enameled cast iron grates combine heft with easy release and rust resistance, and the enameled flame tamers spread that heat consistently across the surface. The 545 sq in total cooking area breaks down into a 400 sq in primary zone and a 145 sq in warming rack.
The full-size pullout oil drip tray is a genuine convenience — you just pull it out, pour away the grease, and slide it back in. Add in the spacious bottom storage cabinet and you have a grill that’s built around the practical realities of owning a BBQ.
Quality is the thing everyone raves about here, with a 204-owner consensus on solid construction. The double-layer lid retains heat well and preheats in under 5 minutes. However, the recurring gripe is rust resistance — the bottom pan has been reported to disintegrate within six months for some owners, which is a genuine durability concern for a grill that lives outside.
Why It Wins Fans
- Porcelain-enameled cast iron grates deliver even heat and easy release
- Pull-out drip tray makes cleanup quick and simple
- Heats up fast with strong, even burners
Where To Be Careful
- Bottom pan rust resistance is a real concern for outdoor use
- Assembly instructions have a couple of unclear steps
The draw: A high-quality, even-cooking grill with a great drip tray system and storage cabinet, at a value price.
Who should pass: Coastal or high-humidity owners who need maximum rust resistance may want a fully stainless model.
4. Sophia & William Propane Gas BBQ Grill with Side Burner
A rapid-assembly stainless model that looks like a premium buy and cooks like one for the price.
Assembly is a genuine highlight — buyers report getting this one together in about 15-20 minutes. The porcelain-enameled cast iron grates and stainless steel burners, paired with flame tamers (metal shields that spread heat evenly), prevent hot spots across the surface. With 545 sq in of cooking space (400 sq in primary plus a 145 sq in warming rack), it handles both small dinners and larger parties.
Your side burner is particularly useful here for cooking sides or sauces while the main event grills. The double-layer lid offers excellent heat retention, and the built-in thermometer keeps you in control. Four galvanized casters make transport simple, and the large storage cabinet fits your tank plus accessories.
Quality and value are the standout themes in the owner consensus, with the grill described as sturdy, well-made, and attractive. It heats fast and cooks evenly, and the side burner is consistently praised as handy. But there’s a durability note to flag: flame dispersers have been reported to rust through after about 18 months of use in some climates, so this isn’t a fully weatherproof unit for harsh conditions.
Editor’s read: The quickest assembly of any grill here, a genuinely useful side burner, and a clean stainless look make this a compelling value pick.
Buy it for: Efficient cooks who want a grill up and running in under an hour and don’t live in extreme coastal conditions.
5. Electactic Stainless Steel 4-Burner Gas Grill
The all-stainless brute that shrugs off the elements and sears with serious punch.
Firing up all four stainless steel burners at 8,000 BTU each gives you 42,000 BTU of intense, even heat, and the 10,000 BTU side burner adds space for veggies and sauces. The headline spec here is the build: crafted entirely from genuine stainless steel with no painted surfaces, this one resists the rust and chipping that plagues painted-steel rivals. The double-wall lid traps heat efficiently and keeps the cookbox hotter.
The three heavy-duty porcelain-enameled grilling grids plus a warming rack give you 383 sq in of total cooking area, which is more compact than peers but still fits a solid family cookout. The large built-in thermometer reads from 0 to 1000°F, so you always know what’s happening inside without lifting the lid.
Assembly is genuinely painless, with clear labels and instructions, and heat distribution is a strong point — one owner test reached 650°F in under 10 minutes with just three burners, with no hot or cold spots. The rear-sloping grease tray and removable drip cup catch drippings and direct fat away from the burners. The trade-off: a smaller total cooking area than the Monument Grills 4+2, and the burner valves rest in place rather than being bolted down, so they don’t feel the most secure.
The Long-Term Case
- Fully stainless construction resists rust and weather damage
- Excellent heat distribution with no hot or cold spots
- Quick, clear assembly process
The Trade-Offs
- Compact 383 sq in cooking area is smaller than most peers
- Burner valves feel less secure, resting rather than bolted
- No lava rock tray for drippings or extra heat retention
Best for: Buyers in wet or coastal climates who want a rust-proof grill that doesn’t need babying.
Look elsewhere if: You regularly cook for large crowds and need the biggest possible grate area.
6. Monument Grills 4+1 Burner Natural Gas Grill
For the homeowner who’s done with propane tanks — this one plumbs straight into your gas line.
Ditched the propane swap? This Monument connects directly to your home’s natural gas supply, so you never buy, refill, or hoist a tank again. It pumps out 50,000 BTU across five burners — four mains plus a side burner — and features the Advanced Broil Zone that hits up to 650°F in 10 minutes, thanks to a U-shaped flame layout and a flame tamer with dense V-shaped holes that spread heat evenly.
You get 630 sq in of total grilling space, split between 450 sq in for main cooking and 180 sq in on the warming rack. The enamel-coated cast iron grates prevent sticking and distribute heat evenly, while a dual-layered lid locks in heat. A built-in glass window lets you monitor your food without lifting the lid.
Owners consistently call it well-engineered and well-made, with assembly described as a breeze thanks to pre-installed screws and well-organized packaging. The burners are high-grade 304 stainless steel. The only real limitation is the fuel type — it supports natural gas only, so it’s a permanent fixture, not a movable patio companion.
The verdict: A refined, high-quality natural gas grill with a fast-heating broil zone and excellent build, for homes already wired for gas.
Note: This is a permanent installation by design; if you might move, a propane model is more flexible.
7. Charbroil Pro Series 3-in-1 Grill with Side Burner
Grill, griddle, and charcoal in one machine — the ultimate answer for indecisive pitmasters.
This Pro Series is a 3-in-1 powerhouse that grills over gas, flat-tops on a cast-iron griddle insert, and even does charcoal with included charcoal trays. You can sear steaks over gas, then swap in the griddle for smash burgers and pancakes, or go full smoky with charcoal — all in one unit without buying separate appliances. The Amplifire Infrared cooking system helps eliminate flare-ups for pro-level results without guesswork.
The 4-burner setup offers 535 sq in of primary cooking space — enough for 25 burgers or 12 steaks at once — plus a 200 sq in warming rack, for a total of about 802.9 sq in. Switching between cooking modes takes 60 seconds or less, and when you’re done with charcoal, you just lift out the trays and dump the ashes.
Owner feedback is glowing on the cooking performance, with the griddle praised above all — burgers and steaks come out perfect in under 10 minutes. A 3-year limited warranty backs the purchase. The main complaint is assembly, which owners say is tricky at the end with some design flaws. Note that the frame is painted alloy steel, so it won’t have the same weather-resistance as full stainless models.
The Appeal
- One machine handles gas grilling, griddle cooking, and charcoal
- Amplifire infrared system prevents flare-ups
- Cook up to 25 burgers at once on the big primary area
What To Expect
- Final assembly step is tricky with some design flaws
- Painted alloy steel frame won’t resist weather like stainless
Who it’s for: The cook who wants maximum menu flexibility — from smash burgers to smoked brisket — in a single machine.
Think twice if: You need a fully stainless, weather-hardened build for exposed patios.
8. Napoleon Freestyle 425 4-Burner Natural Gas Grill
When you want a napoleonic sear — this one blasts to 700°F in minutes and holds steady.
Heating speed is this grill’s superpower. Owners mention it reaching 700°F in just a few minutes and adjusting quickly down to the desired cooking temp — a genuine advantage over grills that take their time warming up. The 4 main burners plus a range side burner give you 425 in² of main cooking space, and the signature cast iron cooking grids resist rust, provide even heat, and create distinctive sear marks.
The JETFIRE Ignition System shoots a jet of flame to light each burner individually, giving you a failsafe start every time. The ACCUPROBE temperature gauge lets you measure your grill’s heat accurately for optimal control. Stainless steel tube burner construction helps cook food quickly over even heat.
The overall cooking surface is 571 sq in total, and this natural gas model connects to your home supply so you never deal with propane tanks. Assembly is straightforward, and the grill’s performance is widely praised — one owner replaced a Weber Genesis and found this one heats way faster and gets way hotter with its four burners. The only flak comes from shipping damage on arrival in some cases, which is more about the carrier than the grill itself.
The read: A premium-feeling natural gas grill with exceptional searing speed and dependable ignition — a compact powerhouse for smaller patios.
Note: It is smaller than larger-cart grills, so measure your space against the 425 in² main surface if you entertain big.
9. Weber Genesis E-415 Gas Grill
Weber’s reputation for even heat and legendary durability — now with a side burner for sauces.
Weber’s PureBlu burners have a unique tapered design that creates a consistent flame and even heat across the grilling surface, and raised flame openings keep food debris falling away to minimize clogs and corrosion. The porcelain-enameled cast-iron grates retain heat for serious searing, while the FLAVORIZER Bars catch and vaporize juices to boost flavor and funnel grease away from the burners.
With 820 sq in of total cooking area, this natural gas model gives you a huge stage for grilling an entire meal. The grease management system uses a pull-out tray located under the cookbox that slides out for quick, easy disposal. A warming rack keeps food warm or toasts buns while the main course finishes.
The Weber Crafted Outdoor Kitchen Collection means you can swap in custom-fit grillware like a pizza stone, griddle, or Dutch oven, expanding what this grill can do. Owners are nearly unanimous in their praise — one replaced their old Weber after 24 years of use, which says a lot about longevity. This is a natural gas model that plumbs into your home’s gas line, so it’s a permanent patio fixture.
Why It’s Worth It
- Huge 820 sq in cooking area for big gatherings
- PureBlu burners maintain consistent, even heat
- FLAVORIZER Bars prevent flare-ups and boost flavor
Considerations
- Natural gas only — requires a permanent gas line connection
- Some deliveries arrive dented; inspect on arrival
The classic choice: For buyers who want Weber’s proven reliability, massive cooking space, and don’t mind a permanent natural gas install.
Look elsewhere if: You need portability or don’t have a natural gas line available.
10. Weber Genesis S-435 Gas Grill
The full stainless showpiece with a dedicated sear zone and a serious side cooking station.
The Genesis S-435 is built for versatility. Four high-performance stainless steel burners deliver efficient, even flame for consistent, precise heat, and the extra-large sear zone gives you room to grill multiple steaks at once. It also includes an additional side burner for sauces, sides, and sautéing veggies, plus a grill storage locker for large grillware and tools.
An expandable top cooking grate creates a large, second level of grilling capacity, so you can grill for a crowd. The extra-large prep and serve side table fits multiple serving trays and cutting boards, keeping everything within arm’s reach. A pull-out grease management system means you spend more time grilling and less time cleaning.
Weber’s Crafted Outdoor Kitchen Collection lets you replace the grate with custom-fit grillware for searing, roasting, baking, steaming, or stir-frying, turning the grill into a full outdoor kitchen. Owners praise the premium stainless build, efficient blue-flame burners, and even heat that uses less propane. The big catch is assembly — the instructions are widely described as challenging, with some buyers recommending you buy pre-assembled unless you’re mechanically inclined.
The Upside
- Dedicated sear zone plus side burner for maximum flexibility
- Expands into a full outdoor kitchen with Weber Crafted accessories
- Efficient burners provide even heat with less fuel
The Downside
- Assembly instructions are difficult to follow
- Heavy 220-pound unit is a two-person job to set up
The pick for: Grilling enthusiasts who want a premium stainless workhorse with a sear station and the option to expand into an outdoor kitchen.
Who might skip: Shoppers not ready for a heavy build and a long assembly session.
11. Napoleon Prestige 500 RSIB Propane Gas Grill
The flagship that does everything — infrared searing, rotisserie, and grill — in polished stainless.
This is the top-tier Napoleon, ready to deliver a steakhouse-quality sear. Four stainless steel main burners produce 48,000 BTU-per-hour, and the infrared sizzle zone side burner heats up to 1800°F in 30 seconds for the perfect crust. It also comes with an 18,000 BTU infrared rear burner and heavy-duty rotisserie kit included, so you can do whole chickens and roasts.
You get 500 sq in of main cooking space — enough to cook 31 burgers at once — plus an extra 260 sq in warming rack and 140 sq in side burner, for a total of 760 sq in of cooking capacity. The stainless steel sear plates, layered to distribute heat, ensure even cooking across the surface.
The JETFIRE ignition system fires a jet of flame to light each burner, with a backup channel between burners so they light off each other — reliable starts every time. Owners are focused on the exceptional cooking grates and the performance for searing steaks, calling it “built like a tank” and praising the sizzle zone for making the best-ever ribeyes. The assembly is a marathon, however, taking over 4 hours and requiring two people. It’s true to its premium price tag, and some owners note it’s not entirely stainless despite expectations.
The Highlights
- Infrared side burner hits 1800°F in 30 seconds for perfect searing
- Rotisserie kit included for whole-roasting capability
- Survives windstorm tip-overs; built like a tank
Keep In Mind
- Assembly takes 4+ hours and needs two people
- Not entirely stainless despite expectations; door alignment can be off
- No cover included at this premium price
The splurge: For serious grillers who want a dedicated infrared sear, rotisserie, and oven-like temperature control all in one stainless flagship.
The catch: A serious time commitment for assembly, and the highest price point here.
Understanding the Specs
BTU Output and Heat
BTU stands for British Thermal Unit — a measure of heat output. A higher BTU number can mean more raw heat, but it’s not the whole story. What matters is how evenly the grill distributes that heat. Look for burners that spread flame consistently across the cooking surface, which translates to fewer hot spots and better results. A grill that hits 650-700°F quickly gives you the searing power you need for steaks.
Cooking Surface Area
Total cooking area is usually quoted as square inches, but always break it down. The primary cooking area is the main grate where you cook steaks, burgers, and chickens. The warming rack is a secondary shelf to keep food hot or toast buns. A grill with a big headline number might have a small primary area, so compare the primary cooking space specifically for your needs.
FAQ
What is the difference between a side burner and a sear burner?
Should I buy a natural gas or propane grill?
What does a higher BTU rating actually mean for performance?
How much cooking space do I really need?
Do I need cast iron or stainless steel grates?
How long does a 20 lb propane tank last on a 4-burner grill?
Is assembly experience consistent across brands?
What does an infrared burner do better than a standard gas burner?
What does an infrared burner do better than a standard gas burner?
What is the importance of the warming rack?
Can I use a 4-burner gas grill with a side burner for a propane tank?
Is it worth paying more for a stainless steel grill?
What is a flame tamer and why does it matter?
How many burgers can I cook at once on a 4-burner grill?
Should I buy a grill that includes a rotisserie kit?
What is the best way to clean a 4-burner gas grill?
How do I choose between a free-standing and built-in grill?
Final Thoughts: The Verdict
For the majority of shoppers, the 4-burner gas grill with side burner winner is the Monument Grills 4+2 because it combines a powerful 72,000 BTU output, a dedicated infrared sear burner, and a massive 723 sq in cooking surface — owners praise it for searing steaks to perfection without the premium price tag. If you want the convenience of a natural gas connection with a fast-heating broil zone, the Monument Grills 4+1 NG is the one to reach for. And for the ultimate in versatility, the Charbroil Pro Series lets you grill, griddle, and cook with charcoal in a single machine.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of August 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, Gadgets Feed earns from qualifying purchases. This does not affect which products we feature.