Don’t waste your time looking for an “insulated” vent. There’s no such thing. Just insulate around it inside the wall and make sure there’s a door on the outside part of it that keeps the air and critters from coming in but opens when the fan is blowing out.
Timbucktoooooo t1_iug4tte wrote
Reply to comment by RatArmy in Insulation around Microwave hood vent by RatArmy
Don’t waste your time looking for an “insulated” vent. There’s no such thing. Just insulate around it inside the wall and make sure there’s a door on the outside part of it that keeps the air and critters from coming in but opens when the fan is blowing out.