I am going to be insulating my liner tomorrow with loose fill perlite. I've been working on blocking off the bottom of the liner with a piece of sheetmetal and stuffing a ton of firewool up there. My question is how should i pour it in to the chimney from up above? is there some kind of funnel or tube i should pour it into. i was also thinking of using some kind of scooper to just scoop it in. any ideas would be great thank you.