Is the oven is meant only for cooking or heating?

While they can be used for heating, that's not their primary function. Here's why:

* Cooking is the core function: Ovens are engineered to distribute heat evenly and precisely to cook food. They have specific temperature control and features like convection that are optimized for cooking.

* Safety concerns: Ovens are designed with safety features for high heat and food preparation. Using them solely for heating can be less safe and might not provide the same efficiency.

* Alternatives for heating: You have other more suitable appliances for heating a space, like space heaters, fireplaces, or central heating systems.

In summary: While you can use an oven for heating, it's not its ideal function, and there are better alternatives available.