Which is better for a household with a natural gas line?

The S-425. It is natural gas only, so it connects straight to your line with no tank to refill. The E-435 is listed for propane and natural gas, but the S-425 is the simpler fit.

Is the E-435 worth more than the S-425?

Only if you want propane or the 12,000 BTU side burner. Cooking area is identical at 428 sq in primary and 533 sq in total. The S-425 is $500.00 at Western Mass Appliances as of November 8, 2026; check the E-435's current price before deciding.

Both use a Sear Zone with two red Boost Burner knobs that add 40% more power. The E-435 states 35,000 BTU for its main burners; the S-425 does not list output, so the two are close on paper.

Which holds more food?

The E-435, rated for 20 burgers against 15 on the S-425. Both have a 105 sq in warming rack, so the difference is on the main grates.

Do either come with a rotisserie?

No. Both list rotisserie as optional, not included. The S-425 spec sheet marks it optional; the E-435 lists it as not included.

Both use porcelain-enameled cast-iron grates and stainless Steel Flavorizer Bars. The E-435 carries a 10-year limited warranty; the S-425's warranty is not stated here. The S-425's stainless lid and cart door should hold up better outdoors than the E-435's black paint.

Weber Spirit S-425 Gas Grill vs Weber Spirit E-435 Gas Grill

Both are 4-burner Weber Spirit grills with the same 428 sq in primary and 533 sq in total cooking area, so the real split is fuel and the side burner. The S-425 is natural gas only and has no side burner; the E-435 runs on liquid propane (natural gas also listed) and adds a 12,000 BTU side burner. At $500.00 at Western Mass Appliances as of November 8, 2026, the S-425 is the cheaper of the two on the one price we have. Buy the S-425 if your house already has a gas line; buy the E-435 if you want propane portability or a side burner for pots and sauces.

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