1500378 Grill Review
Our verdict
The 1500378 is a single-burner propane grill running 18,000 BTU through cast iron grates over 320 square inches, priced at $449. Its 4.6-star average from 144 reviews makes it one of the better-rated single-burner grills in this price range.
Check price on AmazonBest for
Grillers who want the sear-friendly properties of cast iron in a compact single-burner propane setup at a reasonable price.
Skip if
You need multiple heat zones, a larger cooking surface, or you prefer lower-maintenance grates over cast iron.
- Fuel Propane
- BTUs 18000 BTU
- Burners 1
- Cooking area 320 Sq In
- Material Cast Iron
- Install Freestanding
- Priced 18% above the category median ($381.99 across 260 tracked models)
- BTUs of 18000 BTU - higher than 81% of the 261 models we track
- Burners of 1 - fewer than 79% of the 261 models we track
Pros
- 18,000 BTU output supports high-heat searing
- Cast iron grates excel at heat retention and sear quality
- 4.6 stars on 144 reviews is a strong, well-supported rating
- Compact footprint fits smaller outdoor spaces
- $449 is competitive for this BTU and grate combination
Cons
- Cast iron grates require regular seasoning and drying to prevent rust
- Single burner limits heat zone flexibility
- 320 sq in is only practical for one to three people
- Weight not listed, making transport planning harder
Our scorecard
-
Owner rating4.6/5
4.6 average across 144 owner ratings
-
Popularity3.5/5
144 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other grills, grill parts and burners, smokers and smoking gear, grill tools, outdoor griddles, outdoor kitchen appliances and grill covers we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
['Eighteen thousand BTU from a single propane burner is a respectable heat output for 320 square inches. That ratio means this grill can reach and hold high searing temperatures, which is where cast iron grates earn their reputation for leaving clean grill marks and retaining steady surface heat.', 'Cast iron grates require more maintenance than porcelain or stainless alternatives. They need to be seasoned before first use and kept dry to prevent rust, but buyers who keep up with that upkeep typically find cast iron delivers better crust on steaks and burgers than alternatives.', 'At $449 with 144 reviews averaging 4.6 stars, this grill has a deeper review base and a high approval score. The Charcoal Grey finish and compact 30 by 19.7-inch footprint keep it practical for patios where space is at a premium.']
Specifications
| Fuel | Propane |
|---|---|
| BTUs | 18000 BTU |
| Burners | 1 |
| Cooking area | 320 Sq In |
| Material | Cast Iron |
| Install | Freestanding |
| Color | Charcoal Grey |
| Dimensions | 19.7 X 30 X 16.7 In |
Performance notes
One propane burner at 18,000 BTU over 320 square inches of cast iron grating. Cast iron's high thermal mass means the grates hold heat through the first few seconds of a cold steak hitting the surface, reducing the temperature drop that can cause sticking and uneven searing. The 18,000 BTU single-burner output is high relative to the surface area, which translates to fast preheating. The grill measures 30 by 19.7 by 16.7 inches in a low-profile freestanding stance.
What buyers say
144 reviews at a 4.6-star average is the strongest review combination of the grills in this segment at this price point. The sample size is solid and the score suggests a dependable product that meets buyer expectations for heat output and build quality.
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Frequently asked questions
How do you season cast iron grates before the first use?
Wipe the grates with a thin layer of high-smoke-point oil, such as vegetable or flaxseed oil, then heat the grill to around 400 degrees Fahrenheit for about an hour. Let the grates cool, then repeat once or twice. This builds a protective layer that improves non-stick performance and limits rust.
Is 18,000 BTU high for a single-burner grill?
18,000 BTU from one burner over 320 square inches works out to roughly 56 BTU per square inch, which is well above the 26 to 30 BTU per square inch typically considered adequate for general grilling. You will preheat quickly and can push the surface to high searing temperatures with this output.
How does the 1500378 compare to the 1500390 in this lineup?
Both grills have one propane burner and 320 square inches, but the 1500378 uses cast iron grates with a published 18,000 BTU rating and costs $449, while the 1500390 uses porcelain grates with no BTU listed at $499. If searing performance matters and you are comfortable with cast iron maintenance, the 1500378 is the stronger value.