In a planned kitchen remodel, one upgrade is to install an outside vented range hood. My choices are to vent vertically up through the roof or up and then horizontally (8') out the kitchen wall. The vertical option is considerably more difficult and costly. Are there drawbacks to the horizontal option?
The vertical option is not simple as it will need to go through a second floor and an attic in a 1934 house. Provided that building codes don't force that option, I'm hoping for the horizontal option as long as there are no serious drawbacks.