Grilling season is serious business at my house, so when Weber introduced the Spirit EP-425 and EP-435, I knew I had to see which one really earns a spot on the patio.
Both promise intense searing power and Weber’s reliable engineering, but after several weekends of side-by-side testing, some subtle differences emerged that might sway your decision. Here’s my firsthand take on how these two premium 4-burner gas grills stack up in real life.
Key Difference Between Weber Spirit EP-425 vs EP-435 Liquid Propane Grill
The Weber Spirit EP-435 adds a dedicated side burner and a bit more outdoor-kitchen flexibility, while the EP-425 sticks to the essentials. Beyond that, both share the same robust frame, Boost Burners for a powerful sear zone, and a digital thermometer for precise temperature monitoring.
If you need that extra burner for sauces or sautéed sides, the EP-435 stands out. If not, the EP-425 gives you virtually identical grilling performance in a slightly simpler package.
- This Weber Spirit Black Gas Grill features powerful Boost Burners that unleash 40% more power in the largest Sear Zone...
- Weber Spirit Black Grill features Boost Burners that unleash 40% more power in the largest Sear Zone in its class,...
Quick Comparison Table: Weber Spirit EP-425 vs EP-435 Liquid Propane Grill
| Feature | Weber Spirit EP-425 | Weber Spirit EP-435 |
| Burners | 4 main burners | 4 main + 1 side burner |
| Dimensions | 25.5″D × 51.8″W × 46.3″H | 25.5″D × 51.8″W × 46.3″H |
| Sear Zone | Boost Burners, 40% more power | Boost Burners, 40% more power |
| Digital Thermometer | Yes | Yes |
| Side Tables | Stainless steel, Weber Works compatible | Stainless steel, Weber Works compatible |
| Extra Cooking Space | Standard | Includes side burner for sauces/sides |
| Warranty | 10-year limited | 10-year limited |
| Check Latest Deals | Buy on Amazon | Buy on Amazon |
Detailed Comparative Review
Before diving into individual categories, it’s worth noting that I grilled everything from rib-eye steaks to veggie skewers and even baked pizza on both units. My goal was to see how these models performed under identical conditions—weeknight family dinners, Saturday afternoon barbecues, and a couple of large gatherings.
Design and Build Quality
Weber doesn’t cut corners here. Both the EP-425 and EP-435 feature a sleek black finish, stainless steel control panels, and porcelain-enameled cast-iron grates that retain heat beautifully. The heavy-duty locking casters make it easy to roll the grill across the patio and then lock it firmly in place. The side tables are wide enough for prep work and are Weber Works compatible, so you can snap on accessories like a bottle holder or cutting board. Visually and structurally, these two grills are almost identical, and both feel rock-solid.
- This Weber Spirit Black Gas Grill features powerful Boost Burners that unleash 40% more power in the largest Sear Zone...
- Weber Spirit Black Grill features Boost Burners that unleash 40% more power in the largest Sear Zone in its class,...
Ease of Use
The digital thermometer is a standout. Whether I was standing right next to the grill or across the yard, I could clearly read the internal temperature, even in bright sunlight. Snap-Jet ignition is equally impressive—press and turn the knobs and each burner lights instantly. Cleanup is straightforward thanks to the removable grease tray and porcelain grates that release food with minimal effort. If you’ve used other Weber Spirit models, you’ll feel right at home.
Performance and Functions
This is where I really put them to the test. The Boost Burners in both models unleash serious heat, creating a sear zone that gave my steaks a perfect crust without overcooking the interior. Heat distribution is consistent edge to edge, which made indirect grilling of ribs and chicken a breeze.
- This Weber Spirit Black Gas Grill features powerful Boost Burners that unleash 40% more power in the largest Sear Zone...
The EP-435’s side burner, however, proved surprisingly valuable. I used it to simmer barbecue sauce, sauté vegetables, and even boil corn while the main grates were packed with meat. For larger cookouts, having that extra burner meant I didn’t have to run back into the kitchen. If you rarely cook sides outdoors, you might not miss it—but once you use it, it’s hard to go back.
Everyday Experience
During the week, the EP-425 felt slightly more streamlined. Its simpler design meant one less component to clean and a slightly lower price tag. On weekends with friends, the EP-435’s side burner came into play almost every time, letting me keep everything outside. Both models heat quickly and maintain rock-steady temps, so there’s no wrong choice when it comes to pure grilling performance.
Weber Spirit EP-425
- This Weber Spirit Black Gas Grill features powerful Boost Burners that unleash 40% more power in the largest Sear Zone...
Pros:
- Four powerful burners with Boost sear zone
- Digital thermometer for easy temperature control
- Compact 4-burner design fits most patios
- Lower price compared to EP-435
Cons:
- No side burner for sauces or sides
- Otherwise identical to the EP-435, so you might wish you’d paid for the extra feature later
Weber Spirit EP-435
- Weber Spirit Black Grill features Boost Burners that unleash 40% more power in the largest Sear Zone in its class,...
Pros:
- Includes a side burner for boiling, sautéing, or sauces
- Same rugged build and 10-year warranty as the EP-425
- Excellent heat retention and distribution
- Digital thermometer and Snap-Jet ignition simplify cooking
Cons:
- Slightly higher cost
- One more component to clean and maintain
Conclusion and Recommendation
After cooking extensively on both grills, here’s my bottom line: if you’re primarily grilling meats and veggies and don’t see yourself making sauces or side dishes outside, the Weber Spirit EP-425 is more than enough. It delivers the same powerful sear, quick preheat, and even heat distribution as its pricier sibling.
If, however, you love the idea of a true outdoor kitchen setup—or you entertain often and want every dish prepared outdoors—the Weber Spirit EP-435 is worth the upgrade. That side burner may seem like a small addition, but in practice it saves time, adds versatility, and keeps the party where it belongs: in the backyard.
Either way, you’re getting Weber’s signature durability and a grill built to perform for years, backed by a 10-year warranty. Your choice comes down to how you like to cook and whether that extra burner will elevate your grilling game.
