A question about thermal pollution

I am thinking about building a home observatory about 25 feet behind my house to be used primarily for narrow band imaging. Most of my 'usable' sky would be to the West, directly over the house. Would the thermal columns emanating from the house in winter interfere with the quality of my images. Do any of you guys have any experience with this. Thanks, Bill Caspe

My experience with looking over a house top has not been good. Heat rise all night and unless a slight wind pulls it off so that it does not rise into the field, it shows.
Blueman