Are the filtration units and heat exchanger included in the coffee extraction system,or would they need to be purchased separately?

You can use Deli coffee special basket,then all coffee grounds will be loaded into the basket,you lift up the basket then dump the spent coffee grounds.

For larger coffee extraction machine,will use motorized plows to push out the spent coffee grounds.

At least need two different filtration stages for the set up,one is coarse filtration,another is fine filtration.

Yes,the extraction temperature and agitation speed rate is adjustable.

Yes,the extraction time is adjustable,and the extraction temperature is adjustable as well.

Yes,Deli brew coffee machine is designed for roasted and grounds coffee,the coffee beans have to be roasted and grinded in advance by roaster and grinder.

Yes,Deli brew coffee system does.