My Lennox G11E-200V-4 upflow furnace uses a rolled fiberglass batting instead of a traditional 1 inch filter. The batting is stretched over a wire frame that covers the entire blower assembly, and the frame uses a wooden prop rod to keep it from getting sucked into the squirrel cage.
I was wondering if I could replace this contraption with a standard filter that would cover the return duct as it enters the blower cabinet?
If it won't cause any harm, does anyone have advice on the best way to retain the standard filter so it actually functions?
I haven't had much luck finding replacement batting rolls, and it seems like a waste, anyways. Any suggestions?