Of the different types of oil to cook with, flax oil has the lowest temperature at which it will smoke and burn. This is 225 degrees fahrenheit, or 107 celsius. As such, it's best suited for drizzling over cooked foods, salad dressings, or even mixing into healthy smoothies for its high omega 3 fatty acid content. One tablespoon provides 7.2 grams, or the equivalent of four days' worth.
Conversely, the oil with the highest burn and smoke point is avocado oil, at 520 degrees fahrenheit, or 271 celsius. It is rather high (70%) in monounsaturated fat - which is very heart-conscious. With this high point, it is best used for grilling, frying, roasting, searing, or baking. It, too, can be used in salad dressings.
For everything in between, I have compiled a reference list for your kitchens should you have a need:
( cut for length, I decided to go nuts with the 'intelligence' emotion )-Yes, I tested the heating points of all of these, before you ask. These are my notes and research from this morning.