How to Use a Combination Grill and Smoker | Two-Zone Heat

For the full breakdown, see our best Combination Grill and Smoker guide.

Most backyard models use the same firebox and cooking surface for both jobs, so the trick is dividing that space. On a gas grill, you turn on only some burners and leave at least one area off. On a charcoal unit, you pile the coals to one side and cook on the opposite side. Either way, you get a hot zone (400–450°F) and a smoking zone (225–275°F).

Setting Up the Two Heat Zones

For gas grills, turn on one or two burners on one side and leave the opposite side unlit. That unlit side becomes your smoking zone. Place a heavy-duty smoker box—or a disposable foil pan covered with foil and poked with holes—directly on the grate over the unlit burner. Fill it with wood chips soaked for about 30 minutes (or use dry chunks if you prefer longer smoldering). Turn all burners to high with the lid closed until smoke appears, then turn the lit burners down to hold your target temperature.

For charcoal grills, bank the lit coals to one side using a charcoal basket or fire-brick wall. The empty side is your indirect zone. Place wood chunks or foil-wrapped chips on the hot coals, and set a water pan half-full of water next to the coals in the indirect zone. The water pan adds humidity, which keeps meat moist and helps stabilize temperature.

Temperature Control: The Real Secret

Smoking works at 225–275°F at grate level, not at the lid thermometer. Hood-mounted thermometers can read up to 50°F higher than the actual cooking surface, so use a probe thermometer placed on the grate for truth. Grilling finishes happen at 400–450°F, which means you start low and slow, then open the lid, move food to the hot zone, and sear.

On gas grills, that means adjusting the burner knobs in small increments and waiting five minutes for the temperature to settle. On charcoal, adjust the bottom and top vents—more air raises heat, less air lowers it. Aim for thin, clean blue smoke (not thick white smoke) by letting the wood smolder instead of burn.

Grilling Finish and Common Mistakes

After the food has absorbed enough smoke in the indirect zone, move it to the hot zone for a sear. This two-stage dance—smoke first, grill second—is what a combination grill and smoker does best. Keep the lid closed as much as possible; every open costs you 30–50°F of heat that takes minutes to recover.

The biggest mistake is running a single-zone setup, which forces you to choose between grilling heat and smoking smoke, often overcooking the food. Other common errors include letting wood flare up instead of smolder (foil-wrapping chunks limits this), relying solely on the hood thermometer, and skipping the water pan on long cooks.