I live in a city and am installing a pellet stove this summer. My neighbors house is only about 10 feet away from mine. I would like to do a horizontal vent because it is easiest but don't want to upset the neighbor by having a chimney coming at them. Other options would be vertical vent inside so exit on outside of house is higher, or vertical vent all the way to the roof which would be expensive. Has anyone been in this situation? We only own a couple of feet of land on that side of the house and unfortunately there is no way to install on other side of house. It's a new-englander style house, narrow and deep. Thanks for your input!