Broan-Nutone L400 High Capacity Ventilator Fan, Commercial Exhaust Fan, 2.3 Sones, 434 CFM, White

Have a large upstairs master bedroom which due to its north-west exposure becomes unbearably hot from afternoon and into the early evening. Our summertime electric bills are crazy expensive primarily because of the AC trying to keep this room comfortable. Due to the room's vaulted cielings, I could not install this fan horizontally so I mounted it vertically as far up as possible on the one wall that borders the attic. Worked like a charm and we are now easily evacuating the hot air from the room into the attic and creating circulation with cooler air from other areas of the home. The noise of the fan is surprisingly quiet. I chose to re-orient the blower and the fan outlet doors from original 'horizontal' configuration to vertical so that the outlet airflow would not blow against the adjacent insulation in the attic. The manual shows these two possible configurations but does not elaborate on how to accomplish it. Actually, not hard at all to reconfigure... remove 3 nuts mounting the blower then rotate and flip, and then relocating the outlet doors on the exterior were obvious with no explanation required. Currently using a standard wall light switch to turn on/off while searching for the best 'cooling only', a.k.a. close on temp rise, a.k.a 'fan ON', line-voltage thermostat... the line voltage requirement is the wrench thrown into the plans since all offerings available only include quite rudimentary models with seemingly no digital or programmable options (anything beyond simple mechanical is for 'heat only)... finding a robust thermostat solution seems to be the most challenging part of this project.

Works perfect draws all the smoke out from our grill on our porch and is very quiet I have to remind myself to switch it off

Extremely quiet. Great air ventilation. Installed in two car garage to keep heat managed during hot summers.

Installed this in my kitchen to help with heat and smoke. Work perfectly and is very quiet. Remote is very convenient.

I bought a Broan Model 80L Variable Speed Control that was specifically recommended for this ventilator fan. I hear only expected air movement noise when the switch is near the high speed end of the range. As the speed is lowered, the fan begins to rumble and hum.Installation was made challenging by the fact that the fan requires larger than typical (for residential settings) duct work.

We installed this over our island cooktop and we have 8 ft ceilings. So far, so good. It would collect more steam if we had a bit of a hood surrounding, but it does fine for us. We have a very tight house and it has helped dissipate cooking smells much faster than when we had no exhaust.Update: We added a timer and a variable speed button, and eve out the whole system through its paces and we love it. A great, inexpensive option to have flat-to-the-ceiling ventilation

It has noise, but not that bad. Very powerful suction, takes care of all the moisture in laundry room.

Very good fan. Very quiet.