no you can't
Yes, you can put water in the bottom pan of an electric roaster to help regulate the temperature and keep the food moist during cooking. However, make sure to follow the manufacturer's guidelines for your specific roaster model.
It appears that rival has discontinued the 16 quart size roaster oven. There are no replacement parts to be found for any roaster oven at the Rival website. And I have found any aftermarket supplier.
No. Check the instruction guide.
Duck is a very fatty meat. The best way to cook it is in a roaster pan fitted with an elevated insert so that as the fat liquefies and drips to the bottom of the roaster; the remainder of the bird remains clear of the fat in the bottom of the pan.
Calphalon cookware can be used in the oven. If you have a nonstick pan, it is recommended that you don't use it on broil.
Broth is not necessary. A bit of water in the bottom the pan under the roasting rack will do the same thing. It prevents the turkey fat from burning to the bottom of your roaster, and it will make an excellent broth on it's own. No need to have an added expense. If you are not making giblet gravy, you can make your gravy with the "pan drippings" in the roaster. It's a better flavor, especially if you take the time to deglaze the pan..all that wonderful turkey bit in the bottom makes better gravy.
A female roaster is simply called a roaster, regardless of gender. There is no specific term for a female roaster.
Braise it. Put it in a casserol dish with a bit of water, cover it with foil or a tin pie pan, and cook it in the oven at about 400 - 450 ºF. It doesn't really matter much whether you use the bake or broil setting.
On your oven there should be a broil button.
No! Never add water between the two pans. I have seen numerous people do this and then badly scald their hand when trying to move the roaster. The boiling hot water splashes out the sides. Very dangerous!
As long as you choose a toaster oven model that has a broiler function, you can definitely broil a breast of chicken or pan of bacon, for instance, with a toaster oven.