The kitchen needs a vent hood. Without it the kitchen becomes greasy and smelly and attracts vermin. Someone had created a makeshift vent hood but it was terrible and gross so I decided to put in a decent "pro-sumer" model I got used for $150.
Normal hood vent sizes are 7 and 10". This was 8". It came with a built in backdraft dampener. I had to get a 8" elbow which is available at HD. The 8" wall vent was from a specialty store because HD only has 7" wall vent w/flapper which is for under-cab or under-mic hoods rated at lower CFM. You need there to be a flap in the vent or a separate "backdraft dampener" or your heating will escape out of the kitchen easily.
The hood should be placed 30-36" above the range. The range and countertop are always at 36". I am 6'4" and want the height at the max.
It looked close - but sliding the wall vent up under the trim close measured for up to 3' so it wasn't going to interfere much.
Now I need to wire it up. I used a 15A breaker I had lying around. 15A in the kitchen is OK for lights and the vent hood and maybe the fridge and gas range although I'm not sure. 15A means you can use 14 gauge wires. I just bought one roll of 12ga wires (bigger) so I can use it with both 15 and 20A circuits.
Hey it works!
I put on the cover. It's simply a piece of stainless steel. Looks great