pressure cooker or rice cooker may do.
http://www.redhillgeneralstore.com/pdf/mirromanual.pdf
You should not use a pressure cooker to bake in . You could use the bottom if you had to, but it will not build pressure without the gasket and the gasket should not be put in the oven. The gauge will not survive in the oven either. The older lids also had a lead blow-out plug and the newer ones, a rubber plug. Both will melt out in the oven.
The input of a cooker is when you turn the cooker
There are many places that manufacture a gas cooker that has a double oven. The company known as Masterbuilt manufactures a gas cooker that has a double oven.
That is what conventional means, yes
The three main parts of an oven are the grill, hob and oven
Yes, if it is a standard gas range with built in oven then it would normally be a conventional oven.
You use a double oven cooker the same way you use a regular oven. However, it does indeed help finish meals more quickly.
For temperature times with a fan oven, you need to subtract about 10 degrees from the conventional oven time given. So, for 160 degrees F in a conventional oven, you would set a fan oven at 150 degrees F.
No.
The purpose of the oven bottom heating element in a conventional oven is to provide direct heat from the bottom of the oven to cook food evenly and thoroughly.