3-burner stoves are not as common as 2-burner or 4-burner stoves for several reasons:
Size and Space Constraints: In many households and smaller kitchen spaces, a 2-burner stove is sufficient to meet basic cooking needs. It takes up less space, making it more practical for apartments or compact kitchens.
Cooking Habits: For many individuals or smaller families, a 2-burner stove is enough to prepare everyday meals. They may not require the extra capacity provided by a 3-burner stove.
Standard Kitchen Setup: Kitchen design and appliances are often based on standard configurations. Two-burner stoves have been the traditional choice for smaller households, while larger families might opt for a 4-burner stove. The 3-burner configuration doesn't fit the conventional mold.
Cost and Availability: Manufacturers tend to produce stoves that are in higher demand. Since 2-burner and 4-burner stoves are more popular, they are more readily available and may be more cost-effective.
Stove-top Accessories: Many kitchen accessories like griddles, grill pans, and woks are designed to fit two-burner or four-burner stoves, making them more versatile than 3-burner models.
Consistency with Oven Size: Ovens often have either a 2-burner or 4-burner cooktop, which aligns well with the corresponding stove-top sizes.
It's important to note that kitchen trends and consumer preferences may change over time, and manufacturers may introduce new products based on demand and evolving cooking habits. As such, the popularity of 3-burner stoves could change in the future.