I found the following sentence:
There is too much heating.
According to my dictionary, heating is an uncountable noun, so you cannot say heatings.
However, it is possible that you have more than one heating in your house. For example you have one in your room, and the other in your living room.
In this case, how can you express it? I think when you express two furniture, it should be two pieces of furniture, but how about the case of heating?