When heating vegetable oils, their antioxidants become damaged and oxidized, which actually results in a toxic burden on your body! Coconut oil has the ability to resist heat damage due to it being a near completely saturated fat. It all comes down to the molecular structure of the oil. If you want to read about it, here are some great links!

Basically:

Use coconut oil to cook with & as a great replacement for butter in recipes

Use olive oil at room temperature- as dressings, in hummus etc

Why Coconut Oil Is The Best Vegetable Oil

What Oil Should You Be Cooking With?

Healthy Cooking Oils- The Ultimate Guide