Maybe I'm an idiot, but I don't see any pull out screens that you can easily access that helps keep plant matter, etc. out of the actual radiator. Is there one/two? In a few videos I watched, they bragged about accessing these (not sure what year or exact model, but I thought it was a 5e series). Just happened to look last time at our place and did not see them and thought that was odd. Didn't even see how any could slide in...at least, where I was looking.