I looked over past posts about adding an exhaust fan to help draw out fumes for various extended venting situations… but I cannot find an exact answer to if adding this secondary fan will place a burden on the GF fan and cause it to prematurely wear.
I saw various conflicting statements of the CFM rate of the GF fan, and conflicts on how to pair a secondary fan… some say match it… some say slightly under… some said slightly over the CFM of the GF
Can someone who know proper ventilation approaches suggest the right approach to adding a secondary exhaust fan?
I will be venting 5-10 feet across, then 5 feet up then 10 feet across to exterior flap vent.