I would like to replace a 'disappointing' bathroom ceiling exhaust fan with some other brand, but have the challenge of predicting what is compatible with the existing drywall cutout. Few online manuals tell the cutout size - they just say to use the template or the housing to mark the cutout required)
It's a round fan/light (NuTone 8664RP) with 13-1/4" circular ceiling drywall cutout, and a 15" grille. May be same as Broan 750, but the Broan manual implies using the housing to draw the opening required, while the NuTone specs do call out 13-1/4" opening. I compare them just for reference. Broan & NuTone are part of the same company. The Broan one has a night light.
Basically, what I'm asking is whether anyone else has done this. Online reviews clearly show unhappiness with the 8664RP performance, so maybe someone found a solution.