# How to Cook Prime Rib on a Gas Grill: Two-Zone Method

> How to grill a prime rib on a built-in gas grill: two-zone setup, burner use, thermometer pull temps, resting, a reverse sear option and cold-weather tips.

- Source: https://backyardkitchenguide.com/posts/how-to-cook-prime-rib-on-a-built-in-gas-grill/
- Markdown version: https://backyardkitchenguide.com/posts/how-to-cook-prime-rib-on-a-built-in-gas-grill.md
- Last updated: 2026-11-05

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- How to Cook a Prime Rib on a Built-In Gas Grill (Holiday Roast, Two-Zone Method)

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# How to Cook a Prime Rib on a Built-In Gas Grill (Holiday Roast, Two-Zone Method)
  Updated November 5, 2026 By [Backyard Kitchen Guide Editorial Team](https://backyardkitchenguide.com/about/) [How we research](https://backyardkitchenguide.com/how-we-research/)

Prices are approximate and change often, so check the current price before you buy.

## Key takeaways

- **Run two zones.** Light the burners at the sides, leave the ones under the roast off, close the lid and roast on indirect heat. A rack in a pan keeps the beef out of the drippings.
- **Cook to temperature, not time.** USDA says raw beef roasts should reach at least 145°F on a food thermometer and then rest at least 3 minutes. Going higher is a matter of taste.
- **Pulling earlier is a personal choice.** Many cooks take a prime rib off below 145°F for a pinker center. That is below the USDA minimum, so weigh it against who is at the table.
- **Cold weather means more margin, not a new recipe.** Expect a slower cook, shield the grill from wind, start with a full cylinder and keep the grill clear of anything that can burn.
- **Practice before the holiday.** Christmas 2026 is Friday, December 25. A trial run with a cheaper roast, or even just a lid-fit test, is cheap insurance.

## Our top picks

- 1![Blaze Premium LTE 32-Inch Built-In](https://backyardkitchenguide.com/_astro/blaze-premium-lte-32.CifqyBdR_2u7gkG.webp)Four burners and 915 sq in with heat zone separators: the most room for a big roast and a cool zone[Blaze Premium LTE 32-Inch Built-In](https://backyardkitchenguide.com/grills/blaze-premium-lte-32/)4 burners · 60,000 BTU · 915 sq in**$$$**$PremiumPrice tier: Premium[Check price on Amazon](https://www.amazon.com/dp/B07B8SPXTG?tag=backyardkitchenguide.com-20)
- 2![Napoleon Prestige 500 Built-In](https://backyardkitchenguide.com/_astro/napoleon-prestige-500-built-in.wpDoTMcY_Z7p66F.webp)Four burners plus a rear infrared rotisserie burner: roast indirect or spit-roast[Napoleon Prestige 500 Built-In](https://backyardkitchenguide.com/grills/napoleon-prestige-500-built-in/)4 burners · 76,000 BTU · 760 sq in**$$$**$PremiumPrice tier: Premium[Check price](https://www.amazon.com/dp/B07MHT9TQX?tag=backyardkitchenguide.com-20)
- 3![Bull Outlaw 30-Inch Built-In](https://backyardkitchenguide.com/_astro/bull-outlaw-30.CWyvf7Kt_2ukgNt.webp)Four burners and a rotisserie burner at a lower price, with 810 sq in[Bull Outlaw 30-Inch Built-In](https://backyardkitchenguide.com/grills/bull-outlaw-30/)4 burners · 60,000 BTU · 810 sq in**$$$**$PremiumPrice tier: Premium[Check price](https://www.amazon.com/dp/B00CRW6ZMG?tag=backyardkitchenguide.com-20)
- 4![Lion Premium L75000 32-Inch Built-In](https://backyardkitchenguide.com/_astro/lion-l75000-32.iL_j7rGo_Zu4kkB.webp)Four main burners, 830 sq in and a rotisserie burner; confirm the gas line size[Lion Premium L75000 32-Inch Built-In](https://backyardkitchenguide.com/grills/lion-l75000-32/)4 burners · 90,000 BTU · 830 sq in**$$$**$PremiumPrice tier: Premium[Check price](https://www.amazon.com/dp/B00CKWYC5A?tag=backyardkitchenguide.com-20)

### On this page 12 sections

- [Is your grill suited to a prime rib?](#is-your-grill-suited-to-a-prime-rib)
- [Which built-in suits a holiday roast](#which-built-in-suits-a-holiday-roast)
- [Before you light the grill](#before-you-light-the-grill)
- [Prepare the roast](#prepare-the-roast)
- [The two-zone setup, step by step](#the-two-zone-setup-step-by-step)
- [Prime rib temperature: what to aim for](#prime-rib-temperature-what-to-aim-for)
- [Reverse sear on a gas grill](#reverse-sear-on-a-gas-grill)
- [Resting and carving](#resting-and-carving)
- [Cold-weather adjustments](#cold-weather-adjustments)
- [Who should skip this](#who-should-skip-this)
- [The bottom line](#the-bottom-line)
- [FAQ](#faq)

## Before you choose

- [How to Grill a Turkey on a Gas Grill (Thanksgiving Guide)](https://backyardkitchenguide.com/posts/how-to-grill-a-turkey-on-a-gas-grill/)
- [How to Use a Pizza Oven in Cold Weather: Winter Tips for Ooni, Gozney and Built-In Ovens](https://backyardkitchenguide.com/posts/using-a-pizza-oven-in-cold-weather/)
- [How to Winterize an Outdoor Kitchen and Built-In Grill (2026 Checklist)](https://backyardkitchenguide.com/posts/how-to-winterize-outdoor-kitchen/)

A prime rib on a built-in gas grill works best as a slow roast on indirect heat: burners lit at the sides, the roast over the burners that are off, the lid closed and a thermometer in the meat. You cook to temperature, not to a clock. USDA says raw beef roasts should reach at least 145°F on a food thermometer and then rest for at least 3 minutes, and you can go higher if you like it more done. The rest of this guide covers setup, burners, pull temperatures, a reverse sear and what changes in the cold.

Christmas 2026 is Friday, December 25, so there is time for a trial run. We have not cooked a prime rib on any grill in our data. This guide draws on our model data, the USDA chart and general grilling practice, and it says so wherever a number is a cook’s convention and not a sourced figure. Prices are the ranges in our model data as of October 10, 2026, so check the current price before you buy.

## Is your grill suited to a prime rib?

You need a closing hood, burners you can switch off separately, and enough height under the lid for the roast and a pan.

Burners. Two-zone cooking needs at least one burner you can leave off. A three-burner grill can do it, with one off and two lit, but four burners give you more room. In our data the [Napoleon Prestige 500 Built-In](https://backyardkitchenguide.com/grills/napoleon-prestige-500-built-in/), [Blaze Premium LTE 32](https://backyardkitchenguide.com/grills/blaze-premium-lte-32/), [Bull Outlaw 30](https://backyardkitchenguide.com/grills/bull-outlaw-30/) and [Lion L75000 32](https://backyardkitchenguide.com/grills/lion-l75000-32/) have four, and the [Coyote S-Series 30](https://backyardkitchenguide.com/grills/coyote-s-series-30/) has three.

Hood height. Our data does not list it, so we can’t say which heads fit a tall bone-in roast. Put the pan, a rack and something roast-sized under the lid and close it. If it won’t close, roast in the oven. We recommend the same test in our [turkey on a gas grill guide](https://backyardkitchenguide.com/posts/how-to-grill-a-turkey-on-a-gas-grill/).

Rotisserie burner. Not needed for this method. If you want to spit-roast the beef, check the weight limit in your manual first.

| Grill | Burners | Cooking area | Rotisserie burner | Price range (our data) |
| --- | --- | --- | --- | --- |
| [Blaze Premium LTE 32](https://backyardkitchenguide.com/grills/blaze-premium-lte-32/) | 4 | 915 sq in | No | about $2,699-3,199 |
| [Lion L75000 32](https://backyardkitchenguide.com/grills/lion-l75000-32/) | 4 | 830 sq in | Yes | about $2,499-2,999 |
| [Bull Outlaw 30](https://backyardkitchenguide.com/grills/bull-outlaw-30/) | 4 | 810 sq in | Yes | about $2,299-2,699 |
| [Napoleon Prestige 500 Built-In](https://backyardkitchenguide.com/grills/napoleon-prestige-500-built-in/) | 4 | 760 sq in | Yes (rear infrared) | about $2,299-2,799 |
| [Coyote S-Series 30](https://backyardkitchenguide.com/grills/coyote-s-series-30/) | 3 | 700 sq in | No | about $1,899-2,299 |

For a roast on indirect heat, burner count and usable area matter more than total BTU, and BTU figures in our data include rear burners on some heads, so they don’t compare cleanly. The Blaze’s 915 sq in includes its warming rack zone, per our data. Our [best built-in gas grills of 2026](https://backyardkitchenguide.com/posts/best-built-in-gas-grills-2026/) ranking has the full specs, and our [guide to choosing a built-in grill](https://backyardkitchenguide.com/posts/how-to-choose-built-in-grill/) explains what to prioritize.

## Which built-in suits a holiday roast

We have not tested any of these on a prime rib, so this is a fit-for-the-job reading of our data, not a winner.

[Blaze Premium LTE 32](https://www.amazon.com/dp/B07B8SPXTG?tag=backyardkitchenguide.com-20) has the most cooking area, four burners and heat zone separators that let you run different techniques side by side, which suits a roast with a hot-zone sear at the end. No rotisserie or infrared burner. [Check the current price on Amazon](https://www.amazon.com/dp/B07B8SPXTG?tag=backyardkitchenguide.com-20) · [Full review](https://backyardkitchenguide.com/grills/blaze-premium-lte-32/)

[Napoleon Prestige 500 Built-In](https://www.amazon.com/dp/B07MHT9TQX?tag=backyardkitchenguide.com-20) is the pick if you also want a rotisserie: four main burners plus a rear infrared rotisserie burner. It is sold in separate propane and natural gas versions, so confirm which you need. [Check the current price on Amazon](https://www.amazon.com/dp/B07MHT9TQX?tag=backyardkitchenguide.com-20) · [Full review](https://backyardkitchenguide.com/grills/napoleon-prestige-500-built-in/)

[Bull Outlaw 30](https://www.amazon.com/dp/B00CRW6ZMG?tag=backyardkitchenguide.com-20) is the value route: four burners, 810 sq in and a rotisserie burner on most configurations. [Check the current price on Amazon](https://www.amazon.com/dp/B00CRW6ZMG?tag=backyardkitchenguide.com-20) · [Full review](https://backyardkitchenguide.com/grills/bull-outlaw-30/)

[Lion L75000 32](https://www.amazon.com/dp/B00CKWYC5A?tag=backyardkitchenguide.com-20) has four main burners and 830 sq in. Its 90,000 BTU is an all-burner total, and the main burners are 60,000 BTU, so don’t read it as roasting power. Check the gas line size with your installer. [Check the current price on Amazon](https://www.amazon.com/dp/B00CKWYC5A?tag=backyardkitchenguide.com-20) · [Full review](https://backyardkitchenguide.com/grills/lion-l75000-32/)

[Coyote S-Series 30](https://www.amazon.com/dp/B07BB2YPXK?tag=backyardkitchenguide.com-20) can do it with three burners, but with less room to move the roast. It is the cheapest here. [Check the current price on Amazon](https://www.amazon.com/dp/B07BB2YPXK?tag=backyardkitchenguide.com-20) · [Full review](https://backyardkitchenguide.com/grills/coyote-s-series-30/)

If you are buying with the holidays in mind, our [built-in grill Black Friday guide](https://backyardkitchenguide.com/posts/built-in-grill-black-friday-deals/) explains how to judge a deal. We have not verified any 2026 offers.

## Before you light the grill

These points come from NFPA’s grilling guidance and your manual.

- **Keep the grill well away from the home, deck railings, eaves and overhanging branches.** Our [island clearances and venting guide](https://backyardkitchenguide.com/posts/built-in-grill-island-clearances-and-venting/) covers what the Blaze and Napoleon manuals say.

- **Open the lid before you light it, and never leave the grill unattended.** A roast cook takes hours, so plan for someone to be within sight throughout.

- **Keep children and pets at least three feet away.**

- **Clean out the grease first.** NFPA says to remove grease and fat buildup from the grill and the trays below it, and a prime rib renders a lot of fat. See our [cleaning and maintenance guide](https://backyardkitchenguide.com/posts/built-in-gas-grill-cleaning-maintenance-guide/).

- **Check the gas.** On propane, do a soapy-water leak check a few days ahead and check the cylinder. Natural gas connections belong to a licensed fitter, as in our [natural gas vs propane guide](https://backyardkitchenguide.com/posts/natural-gas-vs-propane-grill/).

## Prepare the roast

- **Season ahead.** Many cooks salt the roast a day early and leave it uncovered in the refrigerator. That is a flavor convention, not a safety step.

- **Don’t leave it out for hours.** CDC’s Danger Zone is 40°F to 140°F, and perishable food shouldn’t sit out more than 2 hours, or 1 hour above 90°F. A short rest before grilling is fine, a whole afternoon on the counter is not.

- **Use a rack in a pan.** The pan catches drippings so fat doesn’t land on the burners or heat tents.

- **Use two thermometers.** A probe or instant-read food thermometer for the beef, and a grill thermometer at grate level near the roast, since the lid dial reads the air at the top of the hood.

## The two-zone setup, step by step

- **Choose the zones.** On a four-burner grill, light the two outer burners and leave the middle two off, with the roast over the unlit ones. On a three-burner grill, light the outer two and leave the center off. Follow the settings your manual allows.

- **Light with the lid open, then close it** and let the grill come up to temperature.

- **Set a low, steady heat.** Slow-roast recipes commonly use something like 225 to 275°F. That is a cook’s convention, not a safety figure, so follow your recipe and your grill thermometer.

- **Insert the probe in the thickest part, away from bone,** put the roast on and close the lid.

- **Keep the lid closed.** Every opening lets heat out, so check on a schedule.

- **Watch the burners.** Wind can blow one out on a long cook. Follow your manual’s relight procedure.

We don’t give a minutes-per-pound figure. Roast size, shape, starting temperature, grill setting and weather all shift it, and we can’t tie one to a source. Plan a buffer so a slow roast doesn’t mean dinner at midnight.

## Prime rib temperature: what to aim for

The one sourced number is USDA’s: raw beef roasts should reach a minimum internal temperature of 145°F, measured with a food thermometer, then rest at least 3 minutes. USDA also says you can cook higher by preference.

Anything lower is a personal choice. Many cooks pull a prime rib earlier for a pink center, and the ranges below are common conventions, not USDA guidance and not results from our testing.

| Doneness | Typical final temperature (cook’s convention) | Note |
| --- | --- | --- |
| Medium-rare | about 130-135°F | Below the USDA minimum; a personal choice |
| Medium | about 140-145°F | The top of the range meets the USDA minimum |
| Medium-well | 150°F and above | Above the USDA minimum |

- **Account for carryover.** The roast keeps rising a few degrees off the heat, so cooks pull slightly below the final target. How much depends on the roast, so watch your own thermometer.

- **To follow USDA, aim for 145°F** and then rest at least 3 minutes. A large roast will rest longer in practice.

- **Think about the table.** If anyone eating is pregnant, elderly, very young or has a weakened immune system, stay at 145°F or above.

## Reverse sear on a gas grill

A reverse sear roasts on indirect heat until the beef is a little under your target, then browns the outside over high heat. A gas grill suits it because you can go from low to high quickly.

- **Roast on the cool zone** until the internal temperature is some way under your final target. How far depends on how much the sear adds, so go by your thermometer.

- **Take the roast off and rest it loosely covered** while you turn the burners up and clean the grates.

- **Sear quickly, turning as needed, and stay at the grill.** Rendered fat flares up fast.

- **Check the temperature again,** then rest it.

The Blaze’s zone separators suit this technique. The Napoleon’s rear infrared burner is described in our data for rotisserie, not searing, so sear over the main burners.

## Resting and carving

USDA’s minimum rest is 3 minutes, but a large roast benefits from longer, loosely covered, while you finish the sides. Carve against the grain. Refrigerate leftovers within 2 hours, or 1 hour above 90°F, per CDC, in shallow containers so they cool faster.

## Cold-weather adjustments

- **Expect a slower cook.** Cold and wind pull heat out of the hood. We have no sourced figure for how much longer, so use the thermometer and keep a buffer.

- **Block the wind within the clearances.** Use a wall or screen at a safe distance. Never run the grill in a garage or under a cover.

- **Start with a full propane cylinder and keep a spare.** Propane vaporizes less readily in the cold, so a low cylinder can give a weaker flame. Don’t warm one with a flame or hot water. Our [cold-weather pizza oven guide](https://backyardkitchenguide.com/posts/using-a-pizza-oven-in-cold-weather/) covers the same issue.

- **Clear snow and ice** from the path and around the island before you carry a hot, heavy pan.

- **Check every lit burner** before you close the lid.

- **If you winterized the grill,** our [winterizing guide](https://backyardkitchenguide.com/posts/how-to-winterize-outdoor-kitchen/) has the startup and leak-test steps.

## Who should skip this

If the hood won’t close over the roast and pan, roast in the oven and use the grill for the sear or sides. If you can’t watch the grill for the whole cook, or the weather is dangerous, with high wind, ice or heavy snow around the island, cook indoors. And if you have never run your grill for a long indirect cook, don’t make the holiday dinner your first attempt.

## The bottom line

Run two zones, keep the lid closed, put a food thermometer in the roast and cook to temperature, not time. USDA’s minimum for a raw beef roast is 145°F with a 3 minute rest, and anything lower is a personal choice to make knowingly. Keep the grill clear of anything that can burn, never leave it unattended, and start early.

If you are buying with holiday cooking in mind, the [Blaze Premium LTE 32](https://www.amazon.com/dp/B07B8SPXTG?tag=backyardkitchenguide.com-20) has the most room and the zone separators, the [Napoleon Prestige 500 Built-In](https://www.amazon.com/dp/B07MHT9TQX?tag=backyardkitchenguide.com-20) adds a rotisserie, and the [Bull Outlaw 30](https://www.amazon.com/dp/B00CRW6ZMG?tag=backyardkitchenguide.com-20) is the value route. Our [best built-in gas grills of 2026](https://backyardkitchenguide.com/posts/best-built-in-gas-grills-2026/) compares them all.

## Don't guess. Calculate.

- [💰 Outdoor Kitchen Cost Estimator](https://backyardkitchenguide.com/tools/build-cost-estimator/): price your full build
- [📐 Grill Size Recommender](https://backyardkitchenguide.com/tools/grill-size-recommender/): BTUs and cooking area for your household
- [🔥 Pizza Oven Fuel Compare](https://backyardkitchenguide.com/tools/pizza-oven-fuel-compare/): gas vs wood vs electric costs
- [📊 Compare every model](https://backyardkitchenguide.com/grills/): sortable spec table

## Frequently asked questions

### Can you cook a prime rib on a gas grill?
Yes. A gas grill with a closing hood and burners you can switch off separately handles a prime rib well. Light the outer burners, put the roast over the unlit ones and keep the lid closed. The two things to check first are that the roast and pan fit under the lid, and that your manual allows how you plan to use the grill.

### What temperature should prime rib be on the grill?
USDA's safe temperature chart says raw beef roasts should reach a minimum of 145°F measured with a food thermometer, then rest at least 3 minutes. Many cooks pull the roast earlier for medium-rare, which is below that minimum and is a personal choice. If anyone eating is pregnant, elderly, very young or has a weakened immune system, stay at 145°F or above.

### How long does it take to grill a prime rib?
We don't give a minutes-per-pound figure, because roast size, shape, starting temperature, grill setting and weather all change it and we can't tie a number to a source. Plan on a number of hours for a large bone-in roast, start early, and let the thermometer decide. A finished roast can rest, wrapped loosely, while you finish the sides.

### Do I need a rotisserie burner to cook prime rib on a gas grill?
No. Indirect roasting on the grate works without one. In our data the Napoleon Prestige 500 Built-In, Bull Outlaw 30 and Lion L75000 32 list a rotisserie burner, and the Blaze Premium LTE 32 and Coyote S-Series 30 do not. If you want to spit-roast a large roast, check the weight limit in your manual first.

### What is a reverse sear on a gas grill?
It is roasting the beef gently on indirect heat until it is a little under your target, then finishing over high direct heat to brown the outside. It gives an even interior with a crust. Watch for flare-ups from the fat, and keep the lid and your attention on the grill the whole time.

### Is it safe to grill a prime rib in cold weather?
Yes, with the usual care. Keep the grill outdoors and well clear of the house, deck railings and overhanging branches, never run it in a garage or enclosed space, and never leave it unattended. Cold and wind slow the cook, so use the thermometer, not the clock, and plan a buffer before dinner.

## Sources

- [USDA FSIS: Safe Minimum Internal Temperature Chart](https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/safe-temperature-chart) · checked 2026-11-05 — Raw beef roasts should reach a minimum internal temperature of 145°F measured with a food thermometer, then rest at least 3 minutes; consumers may cook to higher temperatures by preference
- [NFPA: Grilling Safety Facts & Resources](https://www.nfpa.org/education-and-research/home-fire-safety/grilling) · checked 2026-11-05 — Place the grill well away from the home, deck railings, eaves and overhanging branches; make sure a gas grill lid is open before lighting; never leave a grill unattended while in use; keep children and pets at least three feet away; remove grease and fat buildup from the grill and the trays below it
- [CDC: Preventing Food Poisoning](https://www.cdc.gov/food-safety/prevention/index.html) · checked 2026-11-05 — Perishable food should not be left out more than 2 hours (1 hour above 90°F); the Danger Zone is 40°F to 140°F; keep the refrigerator at 40°F or below

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Our #1 pick
 Four burners and 915 sq in with heat zone separators: the most room for a big roast and a cool zone ![Blaze Premium LTE 32-Inch Built-In](https://backyardkitchenguide.com/_astro/blaze-premium-lte-32.CifqyBdR_21MrVa.webp)

### [Blaze Premium LTE 32-Inch Built-In](https://backyardkitchenguide.com/grills/blaze-premium-lte-32/)

- 4 burners · 60,000 BTU · 915 sq in
Outdoor-kitchen builders who want a grill engineered for permanent installation.
[Check price on Amazon](https://www.amazon.com/dp/B07B8SPXTG?tag=backyardkitchenguide.com-20)[Read the full review](https://backyardkitchenguide.com/grills/blaze-premium-lte-32/)

[💰 Pricing your build? Estimate the full outdoor kitchen cost in 60 seconds.](https://backyardkitchenguide.com/tools/build-cost-estimator/)[📊 Compare every model Sortable chart of all grills and pizza ovens.](https://backyardkitchenguide.com/grills/)

## Keep reading
[Seasonal
### How to Grill a Turkey on a Gas Grill (Thanksgiving Guide)
How to grill a Thanksgiving turkey on a gas or built-in grill: indirect heat setup, grill placement, leak checks, thawing safety and why the thermometer beats the clock.
 Updated Oct 29, 2026](https://backyardkitchenguide.com/posts/how-to-grill-a-turkey-on-a-gas-grill/)[Seasonal
### How to Use a Pizza Oven in Cold Weather: Winter Tips for Ooni, Gozney and Built-In Ovens
Can you use a pizza oven in winter? Preheat longer, shelter from wind, manage propane and dough in the cold, and see which Ooni and Gozney ovens suit winter.
 Updated Nov 2, 2026](https://backyardkitchenguide.com/posts/using-a-pizza-oven-in-cold-weather/)[Seasonal
### How to Winterize an Outdoor Kitchen and Built-In Grill (2026 Checklist)
How to winterize an outdoor kitchen: clean and shut off gas, drain water lines, protect the sink, fridge and stainless, store a pizza oven, and leak-test in spring.
 Updated Oct 26, 2026](https://backyardkitchenguide.com/posts/how-to-winterize-outdoor-kitchen/)

 Four burners and 915 sq in with heat zone separators: the most room for a big roast and a cool zone Premium LTE 32 $$$$ Premium Price tier: Premium
[Check price](https://www.amazon.com/dp/B07B8SPXTG?tag=backyardkitchenguide.com-20)