Difference between Masterbuilt 1150 & XT?

Masterbuilt Gravity Series XT vs. Masterbuilt Gravity Series 1150: Key Differences Explained

When it comes to high-performance charcoal grills, Masterbuilt's Gravity Series has revolutionised the grilling experience by combining the convenience of digital controls with the flavour of real charcoal cooking. Two popular models— the Masterbuilt Gravity Series XT and the Masterbuilt Gravity Series 1150 — offer advanced features, but they have key differences that buyers should consider before making a purchase.

In this comparison, we’ll break down the technical specifications, features, and differences between these two models to help you decide which one is the right fit for your grilling needs.

1. Cooking Space & Size

One of the biggest differences between the Masterbuilt Gravity Series XT and the Gravity Series 1150 is their cooking area and overall size.  The Gravity Series XT boasts a generous 1,260 square inches (0.81 m²) of cooking space, accommodating up to 20 chickens, 16 racks of ribs, or 33 burgers. In comparison, the Gravity Series 1150 offers 1,150 square inches (0.74 m²) of cooking area, suitable for up to 19 chickens, 12 racks of ribs, or 51 burgers. This makes the XT model slightly larger, providing more room for extensive grilling sessions.

The XT model comes equipped with premium stainless steel cooking grates, known for their durability and ease of maintenance. In contrast, the 1150 model features reversible Smoke + Sear cast iron grates, offering versatility for different cooking techniques but requiring more upkeep to prevent rust. 

The Gravity Series XT measures 60.3 inches in width, 52.2 inches in height, and 33.2 inches in length. The 1150 model is slightly more compact, with dimensions of 58 inches in width, 52 inches in height, and 32 inches in length. While both grills are substantial, the XT's larger size may require more space in your outdoor area.

- Masterbuilt Gravity Series XT:

  - Cooking Area: 1260 square inches

  - Grill Dimensions: Slightly wider and deeper than the 1150

- Masterbuilt Gravity Series 1150:

  - Cooking Area: 1,150 square inches

  - Grill Dimensions: Taller but slightly narrower than the XT

What This Means for You:

- If you need more cooking space for large gatherings or frequently cook large cuts of meat, the XT offers more surface area.

- The 1150 is still spacious but slightly more compact in footprint.

2. Hopper Capacity & Charcoal Efficiency

The Gravity Series grills use a charcoal hopper system to maintain consistent heat, allowing for precise temperature control.  Both models feature the innovative GravityFed™ charcoal hopper with a capacity of 18 lbs (8.2 kg), allowing for extended cooking sessions without frequent refueling. However, the XT model introduces the FuelSaver™ body design coupled with a fibreglass mesh gasket, optimising charcoal usage by retaining heat, smoke, and moisture more effectively. This design enhancement leads to improved fuel efficiency and consistent cooking temperatures.

- Masterbuilt Gravity Series XT:

  - 18 lbs of charcoal capacity (lump or briquettes)

  - Estimated 16 hours of cooking time on a full load

  - Improved charcoal hopper design for better airflow

- Masterbuilt Gravity Series 1150:

  - 10 lbs of lump charcoal or 16 lbs of briquettes

  - Estimated 12-15 hours of cooking time

  - Standard charcoal hopper design

What This Means for You:

- The XT has a larger hopper, meaning longer cook times without needing to reload.

- The improved hopper on the XT provides better efficiency and airflow, leading to more consistent burns.

3. Temperature Control & Heat Retention

Both models use digital temperature control and a fan-assisted system to regulate heat, but the XT features upgraded insulation.  Both grills utilise the DigitalFan™ control system, ensuring precise temperature regulation. The Gravity Series XT reaches 225°F in 7 minutes and 700°F in 11 minutes, while the 1150 model achieves 225°F in 9 minutes and 700°F in 15 minutes. This indicates that the XT model heats up more rapidly, allowing for quicker cooking transitions.

- Masterbuilt Gravity Series XT:

  - Upgraded ceramic-lined firebox for better heat retention

  - More consistent temperature stability due to improved design

  - Quicker heating times (can reach 700°F in 10-12 minutes)

- Masterbuilt Gravity Series 1150:

  - Standard firebox lining with less insulation

  - Temperature fluctuations can be slightly higher in cold weather

  - Heats to 700°F in 12-15 minutes

What This Means for You:

- The XT retains heat better due to its ceramic firebox, which is great for grilling in colder weather.

- The XT heats slightly faster, making it more efficient for quick cooks.

4. Build Quality & Materials

The construction quality of a grill determines its longevity and performance, especially when exposed to the elements.  The Gravity Series XT is constructed with ExtraTough™ materials and finishes, ensuring enhanced durability. Its FuelSaver™ body design and fiberglass mesh gasket work together to retain heat, smoke, and moisture, optimizing charcoal usage. The 1150 model, while robust, does not feature these specific design enhancements.

The Gravity Series XT offers a 3-year warranty, reflecting Masterbuilt's confidence in its durability and performance. The 1150 model comes with a 2-year warranty, which is standard but slightly shorter than that of the XT.

- Masterbuilt Gravity Series XT:

  - Heavy-duty stainless steel construction

  - Reinforced hinges for added durability

  - Upgraded gaskets for a better seal

- Masterbuilt Gravity Series 1150:

  - Standard steel construction with powder coating

  - Regular hinges (less reinforcement)

  - Standard gaskets (may require replacement over time)

What This Means for You:

- The XT is built with more durable materials, meaning better longevity and improved heat retention.

- If you plan to use the grill year-round, the XT is a better investment due to its upgraded build.

5. Pricing & Value for Money

Price is always a factor when choosing between two models. Here’s how they compare:

- Masterbuilt Gravity Series XT:

  - Higher price point due to upgraded materials and better insulation

  - Larger cooking area but 

  - More efficient charcoal usage saves money over time

  - Longer lifespan due to higher-quality build

- Masterbuilt Gravity Series 1150:

  - More budget-friendly option with great features

  - Slightly less efficient charcoal use

  - Still a great choice for those who want high performance at a lower price

What This Means for You:

- If build quality and efficiency are your priorities, the XT is worth the extra investment.

- If you want the best value for your money, the 1150 is a solid choice.

Final Verdict: Which One Should You Buy?

Both Masterbuilt Gravity Series XT and 1150 are fantastic charcoal grills, but your choice depends on your cooking style and budget:

✅ Buy the Masterbuilt Gravity Series XT if:

- You want superior insulation and heat retention.

- You prefer better build quality for long-term durability.

- You need the largest cooking space possible.

- You want more efficient charcoal usage.

✅ Buy the Masterbuilt Gravity Series 1150 if:

- You want a more affordable option with great performance.

- You don’t mind slightly less insulation and efficiency.

Final Thoughts

Both of these grills deliver fantastic results, but if you want premium performance, better materials, and longer burn times, the XT is the superior choice. However, if slightly less cooking space at a lower price is your priority, the 1150 is still a great value.

The XT model stands out with its larger cooking area, rapid heating, enhanced fuel efficiency, and robust construction, making it ideal for those seeking top-tier performance and durability.

The 1150 model, while slightly more compact and with a shorter warranty, still provides ample cooking space and versatility at a more accessible price point.

No matter which one you choose, you’ll get incredible smoky flavours, easy digital controls, and a game-changing charcoal grilling experience.

Ready to Choose?

Check out the latest prices with saving on bundles, read reviews for the Masterbuilt Gravity Series XT and Masterbuilt Gravity Series 1150 to see which one fits your grilling needs best!

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