Originally Posted by RPCookin
I used a gas oven for my above mentioned cooking - worked just fine. I suppose that there must be some sort of circulation in a gas oven to support combustion, but I also assume that the oven design supports that need without losing efficiency.
If we are talking efficiency, in much of the world electric ranges are far less efficient overall. To make electricity, the power company first boils water to make steam to run the generator. To convert the electricity thus generated back into heat is extremely inefficient. Much more effective to just use gas directly to make the heat one time.
Yes there is and yes it does.
In a standard (ie not fan assisted) oven with the burners actually IN the cavity at the bottom rear of the oven cavity (not under the oven base plate as some foreign makes are) the heat circulates round the cavity and varies from top to bottom of the cavity. As heat rises the temperature is hotter at the top and cooler at the bottom and the temperature you set the oven to cook at will be in the middle of the cavity which is why you can cook items requiring different cooking temperatures in the oven at the same time.