Your gas oven is a modern convenience that cooks the food while you scamper around the house. You just plop the roaster, pizza, or casserole in the oven, set the temperature and turn it on bake. That’s it! So easy even a caveman can do it, right? But what happens when the oven doesn’t heat? What could be wrong? Well the problem may be with the electric ignitor. With a few tools from the electrical toolbox and a little patience, you can change it yourself and save a little money.