The bottom of the range hood must be within 29" to 36", no closer or farther away.

You can modify the chimneys as you need to do that.

Regards,

Jason

We installed this finally since kitchen just got finished and mounted the ductless at 29" on a 7.5" ceiling and the exhaust air coming from the top side vents are swirling the air down under the hood and causing the unit not to suck up efficiently enough. When I am cooking steak the kitchen fills with smoke. Am I missing something we need to do?

did you ever figure out the problem?

We actually ended up being forced to duct it to the outside. It just didn’t work efficiently enough probably because the sides of the cabinets were too close to the top vents on the chimney. We had the height away from the top of the stove correct so that’s all we could think of and it works fine now.

Hi there, we are just trying to install it now with the same issue. With 7.5" ceiling, did you have to cut into the back of the hood (metal sheet)? Ours is not high enough clearance to get it to vent horizontally through the chimney. It seems to only work if you cut into the back metal sheet. How did you work around this?