An electric oven is safer, however it can cost more than a gas oven. It's a matter of preference.
An electric double oven and an electric single oven would have about the same capacity. The only difference between the two is that you can cook two things at the same time with different temperatures using the double oven. It may even heat up faster as well.
it take more electricity to bring a cup of water to boiling in an electric oven
electric, but it alot of times depends on the stove quality.
To switch from a gas oven to an electric oven, you'll only need to purchase the oven, close the valve on your gas line, and make sure that you have a proper sized circuit available in your home.
What are some recipes for an electric convection oven?
No. Electric and gas ovens are not compatible.
Electric ovens have a self-cleaning mode that gas ovens usually don't have, and if they do, they are expensive. Most users prefer electric ovens.
Gas ovens do save more money than electric ovens. But the drawback to a gas oven versus electric is that you do not get even heat exchange with gas as you do with an electric oven.
You have them too low in the oven or the temp too high.
A Whirlpool electric single oven is on the surface-cooking-kindof oven; as for the Nesco Jet Stream oven it uses a a rack top. So for a more evenly cooking, I would go with the Whirlpool.
Thomas Ahearn