Hey guys. I have two fireplaces in my home. One on main floor and one directly below it in the basement. I have installed a wood burning insert into each fireplace. I have the bigger one that produces more heat in the basement. I would like I hear mainly with that one and use the upstairs one as a back up if it’s REALLY cold. I was wondering what fans or vents or exhaust fans or combos of these that you guys use or would recommend to put in the ceiling/floor to get heat from downstairs up into the main family room on the main level. I was just going to put open grates in and gravity hear but decided it would be better to force some of that hot air up through the floor. Thanks for all ideas and input! Look forward to reading them.